Question 1

XPO-4 (Glycerol polyoxyethylene ether oleate), is the high-temperature leveling agent harmful to human health? Does it have an impact on the environment?

Accepted Answer

XPO-4 is a substance with low acute toxicity, but it is irritating to the eyes and harmful to aquatic organisms; under standardized operation and proper handling, the overall risk to human health and the environment is controllable. Detailed Description The acute oral toxicity LD₅₀ of XPO-4 (Glycerol polyoxyethylene ether oleate) is greater than 5000 mg/kg (rat), which belongs to the low acute toxicity class, and under normal industrial use conditions, the acute hazard to humans is low. This product shows no skin irritation, but according to GHS classification, its main health risk lies in eye irritation (Category 2, H319) — contact can cause serious eye irritation. Based on available data, this product is a non-flammable liquid (flash point > 150°C), with no explosiveness or oxidizing properties, making it relatively safe in terms of physicochemical hazards. Regarding environmental impact, the biodegradation rate of XPO-4 exceeds 70% (OECD 301B method), classifying it as readily biodegradable and not persistent in the natural environment. However, it should be noted that according to GHS classification, it is harmful to aquatic organisms (Acute Aquatic Toxicity Category 3, H402), with a fish acute toxicity EC₅₀ greater than 100 mg/L. Therefore, untreated waste or residues must not be arbitrarily discharged into soil, waterways, or public drainage systems. Overall, XPO-4 is a relatively safe industrial auxiliary agent. Under strict adherence to safety operating procedures, proper personal protection (especially eye protection), and appropriate waste disposal, its negative impact on human health and the ecological environment can be effectively controlled. Safety Parameters Overview Safety Indicator Parameter / Classification Acute Oral Toxicity LD₅₀> 5000 mg/kg (rat), low acute toxicity Serious Eye Damage/Eye Irritation Category 2 (H319 — Causes serious eye irritation) Skin Irritation Based on evaluation of similar structures, no irritation shown Acute Aquatic Toxicity Category 3 (H402 — Harmful to aquatic organisms) Biodegradation Rate > 70% (OECD 301B method), readily biodegradable Fish Acute Toxicity EC₅₀> 100 mg/L Flash Point > 150 °C, non-flammable liquid Explosiveness/Oxidizing Properties No / No Personal Protection and Handling Recommendations Eye Protection (mandatory): Safety goggles or ce shields conforming to standards must be worn during operation; this is the most critical personal protective measure. Hand Protection: It is recommended to wear chemical-resistant protective gloves, such as nitrile rubber or neoprene gloves. Respiratory Protection: In case of insufficient ventilation or potential aerosol generation, wear suitable respiratory protective equipment. Operating Environment: Operate in a well-ventilated area, avoid prolonged inhalation of vapors or mists; thoroughly wash hands and exposed skin after operation. Precautions In case of eye contact, immediately open eyelids and rinse continuously with flowing clean water or saline solution for at least 15 minutes, and seek medical attention as soon as possible. Although this product is readily biodegradable, it is still strictly prohibited to discharge untreated waste into water bodies or soil. In case of spillage, use inert absorbent materials (e.g., sand, vermiculite) for collection and disposal. Recommended storage temperature is 5°C to 40°C, avoid freezing or prolonged exposure to high temperatures, and keep away from incompatible substances such as strong oxidizers, strong acids, and strong bases.

Question 2

XPO-4 (Glycerol polyoxyethylene ether oleate), what should I do if problems occur during the use of high-temperature leveling agent? How to obtain technical support?

Accepted Answer

When encountering problems with XPO-4, first check common causes against process parameters. If it cannot be resolved, obtain professional technical support through the official channels of Guoli Chemical Detailed Explanation XPO-4 (Glycerol polyoxyethylene ether oleate) is a technically mature nonionic high-temperature leveling agent with stable performance under normal use conditions. However, in actual printing and dyeing production, problems are often closely related to ctors such as process parameter settings, water quality conditions, and chemical dissolution methods. When issues such as poor leveling, color spots, or color specks occur, it is recommended to first conduct a systematic investigation according to the following ideas. Most problems can be quickly resolved through process adjustments. If the problem cannot be solved after investigation, Guoli Chemical provides professional technical support services to assist in analyzing the dye bath composition, testing product indicators, and optimizing process formulations. It is particularly important to note that the cloud point of XPO-4 is ≥95°C (1% aqueous solution), and the HLB value is 13.5. It has excellent high-temperature stability and will not precipitate or demulsify under high-temperature and high-pressure dyeing conditions at 130°C. However, if the pH of the dye bath deviates from its applicable range (pH 5.0~7.0 for 1% aqueous solution), or if special water hardness or excessive electrolyte concentration occurs, its dispersion and leveling performance may still be affected. Common Problems and Troubleshooting Methods Problem Phenomenon Possible Causes Troubleshooting Suggestions Poor leveling effect, color streaks or spots on the bric surce Insufficient dosage, inadequate dissolution, excessively st heating rate, abnormal dye bath pH value Check whether the dosage of XPO-4 is within the recommended range (usually 0.5~2.0 g/L); confirm that warm water (40~50°C) is used for pre-dispersion before adding to the dye bath; appropriately reduce the heating rate, especially in the 80~110°C range; test the pH value of the dye bath to ensure it is within the range of 5.0~7.0 Poor dyeing reproducibility, large color shade differences between batches Improper storage leading to stratification or moisture absorption, inaccurate weighing, changes in dye batches Stir the product evenly before use (if stratification occurs); check whether the storage temperature is within 5~40°C, avoiding freezing or high-temperature storage; standardize weighing operations to ensure accurate dosage each time Cloudiness or precipitation in the dye bath Poor compatibility with anionic auxiliaries, excessive calcium and magnesium ion concentration in water, use of overly acidic dye bath XPO-4 is nonionic; when compounding with anionic auxiliaries, pay attention to the addition order. It is recommended to dissolve XPO-4 first before adding other auxiliaries; test water hardness and add chelating dispersant if necessary; avoid use under strong acidic conditions with pH below 4 Significant darkening of product color or off-odor Excessively high storage temperature, prolonged storage time, poor packaging sealing The normal product is a light yellow to yellow transparent liquid. If the color significantly deepens to brown or red, stop using; check the storage environment and sealing status; if necessary, take samples for testing Application Suggestions Recommended dosage: In high-temperature and high-pressure dyeing processes, the recommended dosage of XPO-4 is generally 0.5~2.0 g/L (relative to the volume of the dye bath). The specific dosage should be optimized through small-scale experiments based on dye depth, dyeing temperature, dyeing time, and bric type. Dissolution method: First, stir and disperse in 5~10 times the amount of warm water (40~50°C) to fully dissolve or form a uniform emulsion, then add to the dye bath. Direct addition into a high-temperature dye bath is not recommended to avoid local high concentrations leading to dye aggregation. Process control: Control the heating rate at 1~2°C/min, especially during the concentrated dye uptake stage between 80~110°C. Proper insulation is conducive to leveling. The dyeing insulation temperature is usually 130°C, with an insulation time of 30~60 minutes, adjusted according to the dye type and color depth. How to Obtain Technical Support from Guoli Chemical If you have completed the above troubleshooting and still cannot solve the problem, or if you need more in-depth technical guidance, you can call Guoli Chemical's national unified service hotline and provide the following information to quickly locate the problem: Product batch number (can be found on the packaging barrel label) Specific usage process parameters (bath ratio, temperature curve, dosage, dyeing time) Detailed description of the problem (preferably with bric sample photos or actual samples) Dye bath water hardness and pH test values Types and dosages of other auxiliaries used in the same bath Guoli Chemical has comprehensive testing and analysis capabilities. It can retest key product indicators (such as cloud point, pH, active content, etc.) and provide professional technical consulting services and formula optimization suggestions for your process. Precautions Wear protective goggles and gloves during operation to avoid product contact with eyes. In case of accidental eye contact, immediately flush with plenty of water for at least 15 minutes and seek medical attention (the product is H319, causing serious eye irritation). The product is hygroscopic. After use, ensure the container is sealed tightly and store in a cool, dry place (5~40°C), avoiding freezing or high-temperature environments. It is strictly prohibited to discharge the product or wastewater containing the product directly into water bodies, as it is harmful to aquatic organisms (H402). Waste should be disposed of in accordance with local environmental regulations. Slight stratification may occur after long-term storage, which is normal. Stir evenly before use to restore uniformity.

Question 3

How to purchase XPO-4 (Glycerol Polyoxyethylene Ether Oleate), high temperature leveling agent? What is the minimum order quantity?

Accepted Answer

XPO-4 (Glycerol Polyoxyethylene Ether Oleate) can be purchased directly by contacting the Guoli Chemical sales team. The minimum order quantity needs to be confirmed with the sales department. Currently, common packaging specifications are 50kg and 200kg plastic drums. Detailed Description XPO-4 is one of the core products produced by Hai'an Guoli Chemical Co., Ltd. It is a non-ionic surctant mainly used as a high-temperature and high-pressure dyeing leveling agent for polyester. Due to the significant influence of raw material price fluctuations, purchase quantity, transportation distance, and other ctors on chemical raw materials, the actual transaction price is not fixed. The quotation status of this product in the database shows "The price is for reference only. Please contact the sales team for the latest quotation." Therefore, the most direct way to purchase is to contact the Guoli Chemical official sales department for real-time quotations. Regarding the minimum order quantity (MOQ), the product database does not set a hard threshold. However, the standard packaging specifications for this product are 200kg/drum and 50kg/drum in plastic drums. In actual business operations, the minimum order quantity is usually based on full drums or multiples thereof. If you are trying samples for the first time or have small batch testing needs, it is recommended to communicate with the sales team to see if sample delivery or a trial order of small drums (50kg specification) can be flexibly arranged. Ordering Process Suggestions Confirm Requirements: Clarify the quantity, specification (e.g., 50kg or 200kg drum), delivery location, and time requirements you need. Contact Sales: Call or email the Guoli Chemical sales department, provide company and demand information, and obtain the latest quotation. (Note: For specific contact information, please refer to the Guoli Chemical official website or store homepage announcement.) Request Samples: For first-time use, it is recommended to apply for small samples in advance for dyeing plate testing to check whether its leveling and dispersing properties meet your process conditions. Sign Contract: Sign a formal purchase and sales contract after confirming the price, payment method, and delivery date. Logistics Delivery: The product is a non-flammable liquid (flash point > 150 °C), shipped via conventional logistics. Ensure the goods are stored in a cool, dry, and ventilated place upon receipt. Packaging and Transportation This product is available in two standard packaging specifications: 200kg plastic drum and 50kg plastic drum. The recommended storage and transportation temperature is 5°C ~ 40°C, avoiding freezing or high temperature exposure. The product is not classified as hazardous chemical (non-flammable, non-explosive), but based on GHS classification, it lls under Eye Irritation Category 2. Appropriate protective measures should still be taken during transportation and handling. Precautions The above purchasing information is based on the existing product database. Actual business terms (such as price, freight, minimum order quantity) are subject to final confirmation by the Guoli Chemical sales team. It is recommended to request the product's Safety Data Sheet (SDS) and Certificate of Analysis (COA) before purchasing to ensure the product specifications meet your process requirements.

Question 4

Is XPO-4 (glycerol polyoxyethylene ether oleate), a high-temperature leveling agent, environmentally friendly? Can a test report be provided?

Accepted Answer

XPO-4 has good overall environmental performance and is an easily biodegradable nonionic surctant. However, attention should be paid to its potential hazards to aquatic organisms. Specific test reports can be obtained directly from Guoli Chemical. Detailed Description XPO-4 (glycerol polyoxyethylene ether oleate) performs relatively prominently in terms of environmental compliance. According to the ecotoxicological data in Guoli Chemical's product database, the biodegradation rate of this product is greater than 70% (OECD 301B method) , meeting the standard for "easily biodegradable substances". This means that in the natural environment, XPO-4 can be rapidly decomposed by microorganisms and will not accumulate persistently in the environment, meeting the basic requirements for environmentally friendly surctants internationally. In terms of toxicity indicators, the acute oral toxicity LD₅₀ of XPO-4 is greater than 5000 mg/kg (rat) , indicating low acute toxicity and low risk to human health. Its fish acute toxicity EC₅₀ is greater than 100 mg/L, indicating relatively mild acute toxicity to aquatic organisms. However, according to GHS classification, this product is classified as acute aquatic toxicity category 3 (H402) , meaning it still poses certain hazards to aquatic organisms. Therefore, during use, discharge should be strictly controlled, and untreated waste liquid must not be discharged into natural water bodies. In addition, the heavy metal content (≤10 mg/kg) and arsenic content (≤2 mg/kg) of XPO-4 are at low levels, and it does not contain harmful free phosphoric acid. Its flash point is greater than 150°C, and it is neither explosive nor oxidizing. Overall, it is controllable in terms of safety and environmental protection, making it suitable for modern textile dyeing and finishing enterprises with high environmental requirements. Technical Parameters (Environmental Indicators) Test Item Indicator/Data Reference Standard/Method Biodegradation Rate > 70% (Easily Biodegradable) OECD 301B Fish Acute Toxicity EC₅₀ > 100 mg/L Standard Fish Toxicity Test Acute Oral Toxicity LD₅₀ > 5000 mg/kg (Rat, Low Toxicity) OECD 401/420 GHS Aquatic Toxicity Classification Category 3 (H402, Harmful to Aquatic Life) GHS Classification Standard Heavy Metal Content ≤10 mg/kg — Arsenic (As) Content ≤2 mg/kg — Free Phosphoric Acid None — Flash Point >150°C (Non-flammable) — Application Suggestions The environmental performance of XPO-4 makes it particularly suitable for the following scenarios: Export order processing: For dyeing and printing enterprises that need to meet international environmental textile standards such as EU REACH regulations and OEKO-TEX® Standard 100, the high biodegradability and low toxicity of XPO-4 help improve product environmental compliance. Green ctory construction: This product contains no heavy metals, no free phosphoric acid, and is easily biodegradable, making it a preferred auxiliary for dyeing and printing enterprises to build a green supply chain and promote cleaner production. Wastewater treatment coordination: Although XPO-4 itself is easily degradable, it is still recommended that enterprises conduct centralized treatment of dyeing wastewater before discharge, further degrading residual surctants through biochemical treatment processes such as the activated sludge method to ensure effluent water quality meets standards. Precautions No direct discharge into water bodies: Although XPO-4 is biodegradable, it is still classified as a substance harmful to aquatic organisms (H402). Wastewater containing this product must not be directly discharged into rivers, lakes, or public drainage systems without treatment. Obtaining test reports: There is no complete test report file in the database. To obtain formal SGS test reports, biodegradation test reports, RoHS/REACH compliance statements, or MSDS documents, please contact the sales or technical department of Hai'an Guoli Chemical Co., Ltd. directly . They can provide corresponding batch third-party test reports and relevant certification documents based on customer needs. Information timeliness: The above data are from Guoli Chemical's product database. Test values for specific batches may vary within reasonable ranges; please refer to the batch test report provided with the product.

Question 5

What are the advantages of XPO-4 (Glycerol polyoxyethylene ether oleate), a high-temperature leveling agent, compared to other similar products?

Accepted Answer

XPO-4 is an ester-type nonionic leveling agent specially designed for the high-temperature and high-pressure dyeing process of polyester. Compared with common ether-type (Peregal series) and amine-type (AC series) leveling agents on the market, it has significant differentiated advantages in three dimensions: high-temperature stability, affinity for disperse dyes, and emulsifying and dispersing properties. Detailed Description XPO-4 (Glycerol polyoxyethylene ether oleate) differs essentially in chemical structure from other leveling agents in the Guoli Chemical database. The common Peregal O series (such as MOA-9, Peregal O-20, O-25, etc.) are tty alcohol polyoxyethylene ethers, which have a simple ether bond structure; the AC series (such as AC-1812, AC-1815, AC-1820) are octadecylamine polyoxyethylene ethers, containing tertiary amine groups and possessing cationic characteristics. In contrast, the molecular structure of XPO-4 contains both ester groups (-COO-) and a glycerol backbone. This unique ester-type structure gives it natural affinity for polyester fibers and disperse dyes—the oleic acid chain is similar and compatible with the polyester molecular structure, promoting uniform dye penetration at high temperatures; the polyoxyethylene glycerol chain provides excellent water solubility and surce activity. This structural design is not available in ordinary ether-type or amine-type leveling agents, which tend to have more general-purpose leveling functions and lack specific adaptability to the polyester/disperse dye system. In terms of high-temperature performance, the cloud point of XPO-4 is ≥95°C (1% aqueous solution), meaning that under typical high-temperature and high-pressure dyeing conditions (120~135°C), XPO-4 will not precipitate or break down due to temperature rise, maintaining effective surce activity. In comparison, the cloud point of general-purpose Peregal O series products usually varies with the EO number, and some low-EO varieties may undergo phase separation at high temperatures due to insufficient cloud point, affecting the leveling effect. The supplier of XPO-4 explicitly states its "high-temperature stability—no demulsification, no delamination," which is a core capability specifically designed to meet the special requirements of the high-temperature stage of polyester dyeing (especially during the 130°C holding period). Additionally, the monoester content of XPO-4 is ≥90% (diester ≤5%), indicating high purity and regular structure, which directly ensures the stability and predictability of its emulsifying and dispersing properties. An iodine value of 40~60 indicates that the unsaturated double bonds of the oleic acid chain are retained, imparting some flexibility adjustment function. The low foam property ("low foam") is particularly critical for modern high-temperature and high-pressure jet dyeing machines, as it can prevent bric clogging and uneven dyeing caused by foam. Ecologically, the biodegradability of XPO-4 is >70%, making it readily biodegradable, which is superior in environmental compliance to some traditional leveling agents that are difficult to degrade. Technical Parameter Comparison Comparison DimensionXPO-4 (Guoli Chemical)Peregal O Series (General Ether-Type)AC Series (Amine-Type) Chemical TypeGlycerol polyoxyethylene ether oleate (Ester-type)tty alcohol polyoxyethylene ether (Ether-type)Octadecylamine polyoxyethylene ether (Amine-type) Ionic TypeNonionicNonionicNonionic/Weakly cationic HLB Value13.5About 10~16 (varies with EO number)About 12~15 Cloud Point (1% Aqueous Solution)≥95°CVaries with EO number; some low-EO varieties have cloud point Relatively high, but may be affected by pH due to amine groups Monoester/Main Component ContentMonoester ≥90%Not applicableNot applicable Foam PropertyLow foamMedium to high foam (varies with EO number)Medium-low foam Emulsifying Power for Disperse DyesVery strong (ester group affinity design)Medium (general-purpose emulsification)Medium to weak (amine groups may interfere) Suitability for High-Temperature and High-Pressure DyeingSpecifically designed for high-temperature and high-pressure dyeingGeneral-purpose, not specifically designed for high temperatureCan withstand high temperature, but mainly used for antistatic/leveling Biodegradability>70% (Readily biodegradable)Generally biodegradableContains amine groups, biodegradability needs attention Application Recommendations Preferred Scenarios: High-temperature and high-pressure dyeing of polyester (polyester fiber) and its blended brics with disperse dyes, especially for sensitive color shades with stringent leveling requirements (such as dark blue, black, deep red, and other colors prone to shade variation) as well as fine-denier polyester, microfiber, and other high-specific-surce-area brics. Recommended for liquid flow

Question 6

How should XPO-4 (glycerol polyoxyethylene ether oleate), a high-temperature leveling agent, be stored? What is the shelf life?

Accepted Answer

XPO-4 should be stored sealed in a cool, dry, and well-ventilated place at 5°C to 40°C, away from incompatible substances; there is no official shelf life data, but it is generally recommended to use it within 2 years. Detailed Description XPO-4 (glycerol polyoxyethylene ether oleate) is a nonionic surctant, appearing as a light yellow to yellow transparent viscous liquid at room temperature. Proper storage is crucial for maintaining stable product performance and extending its service life. This product is non-flammable, with a flash point above 150°C, and is chemically stable under normal storage conditions. Regarding shelf life, there is no official data for XPO-4 in the Guoli Chemical product database. According to the general industry experience for nonionic surctant products, under strict adherence to storage conditions, it is generally recommended to use it within 2 years to ensure optimal performance. It is advised to follow the "first in, first out" inventory management principle and periodically check the product's appearance for any abnormal changes such as stratification, increased turbidity, or off-odors. Storage Condition Requirements Storage ElementSpecific Requirement Temperature RangeRecommended 5°C to 40°C; avoid freezing or prolonged exposure to high temperatures Container RequirementsKeep sealed; use corrosion-resistant, leak-proof containers; set up dikes to contain spills Environmental ConditionsCool, dry, and well-ventilated warehouse Segregation RequirementsKeep away from food, beverages, and animal feed Incompatible SubstancesStore separately from strong oxidizers, strong acids, and strong bases Fire Prevention MeasuresThis product is a non-flammable liquid, but in case of fire, water spray, alcohol-resistant foam, dry powder, or carbon dioxide can be used for extinguishing Application Recommendations After each use of XPO-4, immediately close the container tightly to minimize prolonged exposure to air, preventing moisture absorption or foreign matter contamination. If the product becomes more viscous or turbid at low temperatures, this is a normal physical change for nonionic surctants. Allow the product to naturally return to a transparent state at room temperature (20°C–30°C) before use; do not apply direct heat. It is recommended to gently stir the product to ensure uniformity before use. Precautions Wear safety goggles or ce shield during operation to avoid contact with eyes (GHS classification: Serious eye damage/eye irritation Category 2, H319). It is recommended to wear nitrile or neoprene protective gloves; thoroughly wash hands and exposed skin after operation. Do not discharge untreated waste or residues into soil, waterways, or public drainage systems (harmful to aquatic life, H402). In case of leakage, use inert absorbent materials such as sand or vermiculite to contain and collect; avoid flushing into sewers. The product has a biodegradation rate >70% (OECD 301B method), classified as readily biodegradable, but waste must still be disposed of according to regulations.

Question 7

What safety precautions should be taken when using XPO-4 (glycerol polyoxyethylene ether oleate) high-temperature leveling agent?

Accepted Answer

XPO-4 (glycerol polyoxyethylene ether oleate) is a nonionic surctant with low toxicity and non-flammability, but it has eye irritation and is harmful to aquatic life. During operation, special attention must be paid to eye protection, avoiding release into the environment, and strictly following personal protection and emergency response specifications. Detailed Description XPO-4 (glycerol polyoxyethylene ether oleate) is a chemical auxiliary with relatively high safety. Its acute oral toxicity LD₅₀ is greater than 5000 mg/kg (rat), indicating low acute toxicity; its flash point is above 150°C, making it non-flammable and non-explosive. However, according to GHS classification standards, this product is classified as Serious eye damage/eye irritation Category 2 (H319), meaning it causes severe eye irritation upon contact, which is the most notable risk point in daily operations. In terms of ecological safety, XPO-4 is classified as Acute aquatic toxicity Category 3 (H402), harmful to aquatic life. Therefore, it is strictly prohibited to discharge untreated waste liquid directly into water bodies or public drainage systems. It is worth noting that the biodegradability of this product exceeds 70% (OECD 301B method), classifying it as readily biodegradable with relatively low persistence in the environment. From a physicochemical hazard perspective, XPO-4 has no explosiveness, no oxidizing properties, and a high flash point (>150°C), making it a non-flammable liquid with low fire risk during storage and transportation. However, this does not mean basic safety management can be neglected. It should still be stored separately from incompatible substances such as strong oxidizers, strong acids, and strong bases, and the container should be kept sealed. Key Safety Parameters Safety IndicatorParameter/ClassificationDescription GHS Eye Irritation ClassificationCategory 2 (H319)Causes serious eye irritation GHS Aquatic Toxicity ClassificationCategory 3 (H402)Harmful to aquatic life Acute Oral Toxicity LD₅₀> 5000 mg/kg (rat)Low acute toxicity Flash Point> 150 °CNon-flammable liquid ExplosivenessNone— Oxidizing PropertiesNone— Biodegradability> 70% (OECD 301B)Readily biodegradable Acute Fish Toxicity EC₅₀> 100 mg/L— Skin IrritationBased on evaluation of similar structural substances, no significant irritation shownWashing after operation is still recommended Personal Protection and Operational Recommendations Eye protection is of utmost importance. During operation, standard safety goggles or ce shields must be worn at all times. This is the most critical measure to prevent H319 risk. For hands, it is recommended to wear chemical-resistant protective gloves (such as nitrile rubber or neoprene gloves), and appropriate protective clothing according to the working conditions should be worn on the body. In cases of insufficient ventilation or possible aerosol generation, suitable respiratory protection should also be worn. Operating environment and habits: Operations should be carried out in well-ventilated areas, avoiding prolonged inhalation of vapors or mists. Eating, drinking, or smoking is prohibited in the operation area. After use, thoroughly wash hands and exposed skin. Based on evaluation of similar structural substances, this product has not shown significant skin irritation, but good washing habits are still recommended. Special reminders for dyeing process applications: When using XPO-4 in high-temperature and high-pressure polyester dyeing processes, since the dye bath is in a sealed high-temperature and high-pressure state, operators should pay special attention to the escape of steam when opening the vessel, avoid directly cing the vessel opening, and prevent contact of steam droplets with eyes and ce. Emergency Treatment Points Eye contact: Immediately separate eyelids and flush with running water or saline solution for at least 15 minutes, and seek medical attention as soon as possible. This is the most critical first aid measure. Skin contact: Remove contaminated clothing and rinse thoroughly with soap and plenty of water. If persistent irritation or discomfort occurs, seek medical attention immediately. Inhalation: Move the person to fresh air and keep respiratory tract unobstructed. If discomfort occurs, seek medical attention immediately. Ingestion: Rinse mouth, do not induce vomiting, seek medical attention immediately and present this safety data sheet or product label. Spill handling: Use inert absorbent materials (such as sand, vermiculite) to contain and collect the spilled liquid, transfer to a dedicated sealed container for disposal. Avoid flushing into drains or surce waters. Fire handling: Although it is a non-flammable liquid, in case of fire, water fog, alcohol-resistant foam, dry powder, or carbon dioxide can be used for extinguishing. Firefighters should wear self-contained breathing apparatus and full protective equipment. Storage Precautions Keep container tightly sealed and store in a cool, dry, well-ventilated warehouse. Storage temperature is recommended to be between 5°C and 40°C, avoiding freezing or prolonged exposure to high temperatures. Keep away from food, beverages, and animal feed. Store separately from incompatible substances such as strong oxidizers, strong acids, and strong bases. Use corrosion-resistant, leak-proof containers and set up secondary containment to prevent spill spread. Do not discharge untreated waste or residues into soil, waterways, or public drainage systems.

Question 8

How to use XPO-4 (glycerol polyoxyethylene ether oleate) as a high-temperature leveling agent? What is the recommended dosage?

Accepted Answer

How to Use XPO-4 High-Temperature Leveling Agent and Recommended Dosage Usage Overview XPO-4 (glycerol polyoxyethylene ether oleate) is a high-performance nonionic surctant primarily used as a leveling agent for disperse dye high-temperature and high-pressure dyeing of polyester and its blended brics. According to the GL Chem product database, XPO-4 is easily soluble in water, has an HLB value of 13.5, active content ≥99%, and features low foam, hard water resistance, and good acid-base stability. It can be conveniently added directly into the dye bath. The specific recommended dosage is not available in the database; the following suggested amounts are based on common industry practice for reference. Detailed Description Usage Method XPO-4 requires no special pretreatment before use. Due to its water solubility (the database shows "easily soluble in water and organic solvents"), it can be pre-diluted with warm water (approx. 40~50°C) to a 10%~20% solution and then slowly added to the dye bath to ensure rapid and uniform dispersion. It can also be added directly to the dye bath under stirring. A typical dyeing process is: place the bric into the dye bath containing auxiliary agents and dyes, heat to about 130°C in a high-temperature and high-pressure dyeing machine, hold for 30~60 minutes, then cool and drain. XPO-4 maintains stable physical and chemical properties under 130°C high-temperature and high-pressure conditions (cloud point ≥95°C, 1% aqueous solution), with no demulsification or phase separation. Recommended Dosage Based on common industry practice, the typical dosage of XPO-4 as a high-temperature leveling agent is usually in the range of 0.5~2.0 g/L (relative to dye bath volume) or 1%~3% (relative to bric weight). The specific amount should be adjusted according to dyeing depth, dye type, and equipment conditions: Light shade dyeing or easy-to-dye types: lower dosage recommended, 0.5~1.0 g/L Medium to dark shade dyeing or difficult-to-dye types: medium to high dosage recommended, 1.0~2.0 g/L For sensitive shades or processes prone to uneven dyeing, the dosage can be appropriately increased to the upper limit XPO-4 has excellent migration and retarding properties (the database confirms it "effectively reduces the dye uptake rate, ensuring uniform adsorption and diffusion of dyes on the fiber surce and interior"), significantly preventing defects such as uneven dyeing and color differences. Meanwhile, its strong dispersibility effectively prevents dye particles from agglomerating and settling in the dye bath. The optimal dosage is recommended to be determined through laboratory sample tests to achieve the best leveling effect and economic balance. Technical Parameters ParameterValue/DescriptionData Source AppearanceLight yellow to yellow transparent liquidGL Chem Database Ionic TypeNonionicGL Chem Database HLB Value13.5GL Chem Database Active Content≥99%GL Chem Database pH (1% Aqueous Solution)5.0~7.0GL Chem Database Cloud Point (1% Aqueous Solution)≥95°CGL Chem Database Foam CharacteristicsLow foamGL Chem Database SolubilityEasily soluble in water and organic solventsGL Chem Database Density (20°C)Approx. 1.05 g/cm³GL Chem Database Alkali ResistanceGood alkali resistance, suitable for alkaline dyeingGL Chem Database Flash Point>150°C, non-flammableGL Chem Database Packaging200kg, 50kg plastic drumGL Chem Database Application Suggestions High-Temperature High-Pressure Dyeing Process: Add XPO-4 to the dye bath at the recommended dosage and use with disperse dyes. Suitable dyeing temperature range is 120~135°C, holding time 30~60 minutes. This product has better migration ability than conventional nonionic leveling agents, effectively slowing down the concentrated dye uptake in the polyester glass transition temperature range (approx. 80~100°C), showing significant effect in preventing "temperature-induced uneven dyeing". Fiber Oil Formulation: When used as a component in fiber finishing oils, the recommended proportion is 5%~20% of the total formulation. The excellent lubricity and surce activity of XPO-4 (surce tension approx. 28 mN/m, 1% aqueous solution, 25°C) can improve fiber spinnability. When used as an industrial emulsifying dispersant, the recommended dosage is 2%~8% of the total formulation, and the exact amount should be determined by experiments based on the characteristics of the substance to be emulsified. Combination Synergy: XPO-4 can be used in combination with anionic dispersants (such as dispersant NNO, MF) to leverage the synergistic effect between nonionic and anionic agents, further enhancing the dispersion stability of the dye bath. Precautions Eye Protection: Safety goggles or ce shields must be worn during operation. This product is classified under GHS as Eye Irritation Category 2 (H319), which may cause serious eye irritation (data source: GL Chem Safety Information). Avoid Discharge into Water: This product is harmful to aquatic organisms (H402, Acute Aquatic Toxicity Category 3). Residuals after operation must not be discharged into sewers or surce waters. Storage Conditions: Store sealed in a cool, dry, well-ventilated place at 5°C to 40°C, avoiding freezing. Compatibility: Store separately from strong oxidizing agents, strong acids, and strong bases. Good stability under normal use conditions against hard water and dilute acids/alkalis. Pre-Testing: When using for the first time or changing dye types, it is recommended to conduct sample tests first to verify the optimal dosage and compatibility. First Aid: If accidentally enters eyes, rinse immediately with running water for at least 15 minutes and seek medical attention; wash hands and exposed skin thoroughly after operation.

Question 9

XPO-4 (Glyceryl Polyoxyethylene Ether Oleate), what industries and processes does the high-temperature leveling agent mainly apply to?

Accepted Answer

XPO-4 is mainly used in high-temperature and high-pressure dyeing processes in the textile printing and dyeing industry, and can also be used as an industrial emulsifier, dispersant, and component of chemical fiber oil agents. Detailed Description XPO-4 (Glyceryl Polyoxyethylene Ether Oleate) is a high-performance nonionic surctant developed by GuoLi Chemical. Its core application positioning is as a high-temperature and high-pressure leveling agent for polyester and its blended brics. In the high-temperature and high-pressure dyeing process with disperse dyes, this product effectively regulates the dye uptake rate through excellent migration and retardation capabilities, enabling uniform adsorption and diffusion of dyes on and inside the fiber surce. This fundamentally prevents dyeing defects such as color patches, color differences, and spots, significantly improving the one-time dyeing success rate and shade reproducibility. In addition to dyeing processes, XPO-4, leveraging its outstanding intercial activity and emulsifying/dispersing abilities, can be widely used in the industrial emulsifier and dispersant fields, such as in formulations for inks, coatings, and pesticide emulsifiable concentrates, effectively stabilizing emulsions and preventing particle agglomeration and sedimentation. Meanwhile, this product is also used as a component in chemical fiber spinning oil formulations, imparting good smoothness, cohesion, and antistatic properties to fibers, thus improving the spinnability and subsequent processing performance of chemical fibers. Application Industries and Processes Overview Application IndustrySpecific Process/UseFunctional Role Textile Printing & DyeingHigh-temperature and high-pressure dyeing of polyester with disperse dyesHigh-temperature leveling agent, retarder Textile Printing & DyeingDyeing of polyester blended bricsPrevents color patches and differences, improves leveling Inks/CoatingsPreparation of emulsions and dispersion systemsIndustrial emulsifier, dispersant Pesticide FormulationsFormulation of pesticide emulsifiable concentrates (EC)Emulsifier component Chemical Fiber ManucturingSpinning oil formulation compoundingSmoothing agent, antistatic agent component Application Recommendations In high-temperature and high-pressure dyeing processes, XPO-4 is recommended to be added during the dye bath preparation stage. Its excellent emulsifying and dispersing power ensures that disperse dyes are uniformly suspended in the dye bath, reducing the risk of dye particle aggregation at high temperatures. Its outstanding resistance to acid, alkali, and hard water ensures stable performance under different water qualities and process conditions, without demulsification or delamination under high-temperature working conditions. When used as an emulsifier or oil agent component, it is recommended to determine the optimal dosage through experiments based on the specific formulation system and HLB value requirements. Precautions Avoid contact with eyes during operation; it is recommended to wear protective goggles (GHS classification: Eye irritation Category 2, H319). Avoid discharge into water environments (Hazardous to aquatic life, H402). Storage temperature is recommended to be 5°C to 40°C; store sealed in a cool, dry, and well-ventilated place. This product has low acute toxicity (LD₅₀ > 5000 mg/kg), but ingestion should still be avoided.

Question 10

What are the physicochemical technical parameters of XPO-4 (glycerol polyoxyethylene ether oleate), a high-temperature leveling agent?

Accepted Answer

XPO-4 (glycerol polyoxyethylene ether oleate) is a nonionic surctant with high purity (≥99%) and HLB value of 13.5. It appears as a light yellow to yellow viscous liquid at room temperature, exhibiting excellent water solubility and high-temperature stability. Detailed Description The chemical name of XPO-4 is glycerol polyoxyethylene ether oleate, with the general molecular formula C₃H₅(OC₂H₄)nOOCC₁₇H₃₃, where the number of ethylene oxide adducts n≈4~20, and the molecular weight ranges from about 1000 to 1500 (varying with the number of EO units). This product belongs to the nonionic surctant category, with a monoester content ≥90%, diester content ≤5%, and free alcohol ≤1.0%, ensuring high purity and excellent surce activity. This product exhibits outstanding physicochemical stability: cloud point ≥95°C (1% aqueous solution), showing no demulsification or stratification under high-temperature and high-pressure dyeing conditions; good resistance to hard water, dilute acids, and dilute alkalis, making it suitable for alkaline dyeing processes. It also features low foaming characteristics, reducing foam-related issues in industrial applications. The water content is ≤1.0%, with a high active ingredient content to ensure usage efficiency. From a safety and environmental perspective, this product has a flash point >150°C, classifying it as a non-flammable liquid; acute oral toxicity LD₅₀ >5000 mg/kg, indicating low acute toxicity; and a biodegradation rate >70% (OECD 301B method), classifying it as readily biodegradable and environmentally friendly. Technical Parameters Basic Physical Properties Parameter ItemSpecification Value Appearance (room temperature)Light yellow to yellow transparent viscous liquid Ionic typeNonionic Molecular formulaC₃H₅(OC₂H₄)nOOCC₁₇H₃₃, n≈4~20 Molecular weightApproximately 1000~1500 (varies with EO number) Density (20°C)Approximately 1.05 g/cm³ Kinematic viscosity (25°C)Approximately 300 mPa·s Refractive index (20°C)Approximately 1.465 Melting point Flash point>150°C (non-flammable liquid) Moisture content≤1.0% HygroscopicityHygroscopic Surce Activity and Functional Parameters Parameter ItemSpecification Value HLB value13.5 Cloud point (1% aqueous solution)≥95°C Surce tension (1% aqueous solution, 25°C)Approximately 28 mN/m Critical micelle concentration (CMC)0.01~0.1 g/L Foaming propertiesLow foaming Water solubilityEasily soluble in water and organic solvents Chemical stabilityStable under normal conditions, resistant to hard water, dilute acids, and dilute alkalis Alkali resistanceGood alkali resistance, suitable for alkaline dyeing Chemical Index Parameters Parameter ItemSpecification Value Active ingredient content≥99% Solid content≥99% pH value (1% aqueous solution)5.0~7.0 pH value (5% aqueous solution)5.0~7.0 Acid value≤2 mgKOH/g Saponification valueApproximately 30~80 mgKOH/g (varies with EO number) Hydroxyl valueApproximately 50~150 mgKOH/g (varies with EO number) Iodine value40~60 gI₂/100g UnsaturationApproximately 0.5~1.0 mmol/g Monoester content≥90% Diester content≤5% Free alcohol≤1.0% Heavy metals (as Pb)≤10 mg/kg Arsenic (As)≤2 mg/kg Amine value/Tertiary amine contentNone Free phosphoric acid/Phosphate monoester/Phosphate diester/Combined phosphorusNone (this product does not contain phosphorus) Application Recommendations With an HLB value of 13.5, XPO-4 is a hydrophilic O/W emulsifier, particularly suitable as a leveling agent for high-temperature and high-pressure dyeing of polyester and its blended brics with disperse dyes. The recommended dosage is 0.5~2.0 g/L of the dye bath (specific dosage should be optimized based on dye concentration, dyeing depth, and equipment conditions). In industrial emulsification and dispersion fields, it can be used as an emulsifying and dispersing component in formulations such as inks, coatings, and pesticide emulsifiable concentrates. It can also be compounded in chemical fiber finishes to impart good smoothness and cohesion to fibers. Precautions Eye protection: This product is classified as eye irritant category 2 (H319). Safety goggles or ce shields must be worn during operation. In case of accidental eye contact, rinse immediately with plenty of water for at least 15 minutes and seek medical attention. Storage temperature: It is recommended to store sealed at 5°C~40°C. The product may freeze below 0°C, but after thawing and mixing evenly, the performance is generally not affected. Environmental protection: This product is harmful to aquatic organisms (H402). Do not discharge untreated waste liquid directly into water bodies or soil. Although the biodegradation rate is >70%, proper disposal is still required. Compatibility: It has good compatibility with anionic, cationic, and nonionic surctants, making it widely applicable in compounding systems. Packaging specifications: Conventional packaging is in 200 kg and 50 kg plastic drums.

Property	Value
Molecular Formula	C3H5(OC2H4)nOOCC17H33, n≈4~20
Appearance	Pale yellow to brownish-yellow viscous liquid
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 1000~1500 (varies with EO number)
Cloud Point	≥95 (1%aq. soln.)
Active Content	≥99
pH Value(1%)	5.0~7.0
pH Value(5%)	5.0~7.0
Iodine Value	40~60
Solubility	Dispersible in water
Surface Tension	~28 (1%aq. soln., 25°C)
CMC	0.01~0.1 g/L
Acid Value	≤2
Saponification Value	~30~80 (varies with EO number)
Hydroxyl Value	Varies with EO number (~50~150)
Moisture	≤1.0
Density	~1.05 (20°C)
Kinematic Viscosity	~300 (25°C)
Refractive Index	~1.465 (20°C)
Flash Point	＞150
Hygroscopicity	Hygroscopic
Chemical Stability	Stable under normal conditions; resistant to hard water, dilute acid and alkali
Penetration	Not determined
Foam Property	Low foam
Alkali Resistance	Good alkali resistance; suitable for alkaline dyeing
Unsaturation	~0.5-1.0 mmol/g
Viscosity	Not determined
Melting Point	＜0
Monoester Content	≥90
Diester Content	≤5
Low Shear Viscosity	Not determined
Solid Content	≥99
Free Alcohol	≤1.0
Heavy Metal	≤10
Arsenic	≤2

XPO-4 Glycerol Polyoxyethylene Ether Oleate, High-temperature Leveling Agent

Product Details

Applications

Properties

Safety

Product Overview

Packaging and Storage

Specialty Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

Related Products

XPO-4 Glycerol Polyoxyethylene Ether Oleate, High-temperature Leveling Agent

Product Details

Applications

Properties

Safety

Product Overview

Packaging and Storage

Specialty Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

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