Question 1

Is alkali-resistant penetrant OEP-70 harmful to humans? Does it have an impact on the environment?

Accepted Answer

The overall risk of alkali-resistant penetrant OEP-70 to health and the environment is controllable, as it is a low-toxicity surctant, but standardized operation is required to prevent potential irritation and environmental impact. Human Health Effects Alkali-resistant penetrant OEP-70 is an anionic surctant (isooctanol polyoxyethylene ether phosphate), and its impact on human health mainly manifests as local irritation, rather than systemic toxicity. According to product safety data, its health hazards can be summarized at the following levels: Acute exposure risk: Harmful if swallowed is its main acute hazard route. Skin contact may cause slight irritation, and eye contact may cause irritation and discomfort. These reactions are usually reversible local symptoms that can be alleviated by timely rinsing. Long-term or repeated exposure risk: Due to the degreasing properties of surctants, long-term or repeated skin contact can lead to loss of natural skin oils, resulting in dry skin, degreasing, or even cracking. Therefore, it is recommended to always wear chemical-resistant protective gloves during operation and thoroughly wash hands and exposed areas after work. Environmental Impact OEP-70 has low toxicity to aquatic organisms, and under normal use and trace discharge, it does not cause significant harm to the aquatic ecological environment. However, it is important to note that large spills into water bodies may, due to the inherent properties of surctants, lead to reduced surce tension, foaming, and adverse effects on aquatic habitats. Therefore, users should establish spill emergency plans and strictly prohibit the discharge of large amounts of untreated waste liquid into sewers or natural water bodies. In terms of biodegradability, tty alcohol polyoxyethylene ether phosphate surctants generally exhibit good biodegradation performance and can gradually decompose in the natural environment, lacking the accumulation characteristics of persistent organic pollutants. Safe Operation Key Points Personal Protective Measures Wear chemical-resistant protective gloves and safety goggles during operation Maintain good ventilation in the workplace to avoid inhaling aerosols or mists No eating, drinking, or smoking in the workplace Thoroughly wash hands and other contacted areas after operation Spill Emergency Procedures Small spills: Collect with inert absorbent materials (such as sand, vermiculite) and transfer to a sealed container Large spills: Contain spilled area to prevent entry into sewers or water bodies, and dispose of according to local regulations Skin contact: Remove contaminated clothing, rinse with plenty of water and soap for at least 15 minutes Eye contact: Immediately flush with running water for at least 15 minutes and seek medical examination Ingestion: Rinse mouth, do NOT induce vomiting, seek medical attention immediately and show the product label or this safety information Storage Precautions Store in a cool, dry, well-ventilated place at a temperature between 5-40°C Avoid freezing to prevent product separation Keep away from strong oxidizers, strong acids, and strong bases Keep containers tightly closed and away from food and feed Disclaimer: The above information is prepared based on general product characteristics. For specific hazard information and preventive measures, always refer to the official Safety Data Sheet (SDS) provided by the supplier.

Question 2

What should I do if problems occur during the use of alkali-resistant penetrant OEP-70? How to obtain technical support?

Accepted Answer

What should I do if problems occur during the use of alkali-resistant penetrant OEP-70? How to obtain technical support? First, determine the type of problem (process effect, product state, or safety), investigate the cause accordingly, and if necessary, immediately contact the Guoli Chemical technical team for professional support. Detailed explanation Alkali-resistant penetrant OEP-70 is an anionic surctant specially designed for high-alkali processes. Under normal use, it exhibits extremely st penetration (≤5 seconds), strong alkali resistance (200-300g\/L NaOH), and excellent hard water tolerance. However, in actual production, deviations in process conditions, improper storage, or formulation compatibility issues may cause anomalies. The following are common problem categories and handling ideas: Process effect issues: such as decreased penetration, uneven treatment, or staining. Please check the following aspects first: ① Whether the alkali concentration of the bath exceeds the product's tolerance range; ② Whether the bath temperature is too high or too low (the product's cloud point >100°C, 1% aqueous solution, good high-temperature resistance); ③ Whether the pH of the working solution is within a reasonable range (1% aqueous solution pH 5.0~7.0); ④ Whether hard water causes calcium soap precipitation interference (the product has hard water tolerance, but extreme hardness still requires attention); ⑤ Whether the addition sequence is reasonable (it is recommended to dissolve OEP-70 first before adding alkali agents). Abnormal product state: If stratification, turbidity, or significant changes in fluidity occur, check whether the storage temperature is within the range of 5~40°C. This product has certain hygroscopicity, and unsealed containers may cause moisture absorption affecting quality. If freezing has occurred, the product may stratify. It is recommended to allow natural recovery at 15~25°C, stir thoroughly, then sample and test before batch use after confirming performance. Safety and health issues: In case of skin contact or eye contact, perform emergency treatment immediately according to the product safety instructions - for skin contact, rinse with plenty of water and soap for at least 15 minutes; for eye contact, rinse with running water or saline continuously for at least 15 minutes and seek medical attention. Do not induce vomiting, rinse mouth and seek medical attention immediately, and show the product label or safety data sheet. Technical parameters Parameter ItemSpecification Value Ionic typeAnionic AppearanceColorless to slightly yellow transparent viscous liquid Active content70.0±2.0% Penetrating power (5g\/L, standard canvas)≤5 seconds Alkali resistance stabilityResistant to strong alkali (200-300g\/L NaOH) pH value (1% aqueous solution)5.0~7.0 Surce tension (1%, 25°C)28~32 mN\/m Cloud point (1% aqueous solution)>100°C Storage temperature5~40°C Foam propertyLow foam How to obtain technical support from Guoli Chemical When you are still unable to solve the problem after self-investigation, Hai'an County Guoli Chemical Co., Ltd. provides the following technical support channels: Consult product technical data: First, check the Certificate of Analysis (COA) and Safety Data Sheet (SDS) of this batch to confirm whether the product meets ctory specifications. Contact the sales service team: Communicate directly with Guoli Chemical's sales or technical service personnel through the business contact method used when purchasing the product. Provide the batch number, process conditions, and a detailed description of the abnormality for quick problem identification. Apply for on-site technical service: For complex process issues, negotiate to arrange technical engineers to diagnose at the production site and assist in optimizing formulation or process parameters. Send samples for laboratory analysis: If product quality abnormality is suspected, send retained samples back to Guoli Chemical's quality inspection department for full re-testing. Notes When reporting issues, please prepare the following information for quick response from technical staff: Product batch number, purchase date, storage conditions, process parameters used (alkali concentration, temperature, dosage), description of abnormal phenomenon and photos. This product is an industrial chemical and should not be used in food, pharmaceutical or cosmetic fields. For any serious safety incidents (such as large spills, injuries), prioritize emergency measures, then contact the supplier for follow-up disposal. For detailed safety information, please refer to the official SDS accompanying the product. The above safety guidelines are for reference only.

Question 3

How to purchase Alkali-resistant Penetrant OEP-70? What is the minimum order quantity?

Accepted Answer

There is no strict minimum order quantity for Alkali-resistant Penetrant OEP-70. For specific procurement matters, it is recommended to directly contact the sales team of Guoli Chemical for customized quotes and solutions. Detailed Description Alkali-resistant Penetrant OEP-70 (CAS No.: 68439-51-0) is one of the core products of Haian Guoli Chemical Co., Ltd., and belongs to anionic surctants. This product is produced steadily throughout the year and is sold to customers nationwide. As the product price is affected by multiple ctors such as raw material fluctuations, order quantity, packaging specifications, and transportation distance, the database only publishes a reference price (unit: yuan/ton). The actual transaction price needs to be confirmed in real-time with the sales team. Guoli Chemical recommends that customers clarify their own usage requirements and process conditions before procurement, so that sales engineers can provide more cost-effective recommended solutions. The purchase process is typically: consultation and communication → provision of sample testing (if needed) → confirmation of specifications and price → signing of purchase and sales contract → arrangement of production and shipment. Guoli Chemical supports a variety of flexible cooperation models, whether for bulk procurement or long-term agreement customers, all of whom can receive targeted services. The product packaging offers three specifications: 50kg plastic drum, 200kg plastic drum, and IBC tote tank, which can be flexibly selected based on your storage conditions and feeding methods, helping to reduce the single procurement cost. Technical Parameters Parameter ItemTypical Value/Specification Chemical NameIsooctyl Alcohol Polyoxyethylene Ether Phosphate (Potassium Salt) CAS No.68439-51-0 Ion TypeAnionic AppearanceColorless to slightly yellow transparent viscous liquid Active Content70.0±2.0% Packaging Specification50kg plastic drum / 200kg plastic drum / IBC tote tank Packaging UnitWoven bag Reference PricePlease consult the sales team (subject to the day's quotation) Application Suggestions Alkali-resistant Penetrant OEP-70 is specially designed for high-alkali process environments, featuring extremely st penetration (standard canvas piece ≤5 seconds) and ultra-high alkali resistance stability (can withstand 200-300g/L NaOH solution). It is an ideal choice for alkali-oxygen one-bath pretreatment, cold pad-batch process, mercerizing process, as well as fields such as paper pulping and metal cleaning. Before procurement, it is recommended to confirm the suitability with Guoli Chemical technicians based on your own alkali concentration range and process temperature requirements. You can also apply for samples for small-scale verification under actual working conditions to ensure the effect meets expectations. Notes Order Confirmation: Since product models and formulas may be adjusted according to customer needs, please confirm with Guoli Chemical sales representatives one by one regarding product specifications, CAS number, packaging form, and delivery cycle before signing the contract. Storage and Transportation: The product should be stored in a cool and dry place at 5~40°C, avoiding freezing to prevent stratification. During transportation, ensure the container is sealed and keep away from strong oxidizers and strong acids. Safe Operation: It is recommended to wear chemical protective gloves and safety goggles during operation, and maintain good ventilation in the workplace. Detailed safety data can be obtained from the sales team by requesting the official SDS. Price Explanation: The price shown in the database is for reference only. The actual quotation shall be subject to the official quotation issued by Guoli Chemical at the time of signing the contract.

Question 4

Does the alkali-resistant penetrant OEP-70 meet environmental requirements? Can a test report be provided?

Accepted Answer

The alkali-resistant penetrant OEP-70 generally exhibits good environmental performance and is classified as a low-toxicity, low-risk chemical. However, it must be used properly to avoid large-scale spills that could impact water bodies. Regarding the product test report, there is currently no specific test report file for this product in the database. It is recommended to directly contact the sales or technical department of Guoli Chemical to obtain the latest third-party test reports and certification documents. Detailed Explanation According to the safety information in the Guoli Chemical database, the alkali-resistant penetrant OEP-70 (CAS: 68439-51-0) has low toxicity to aquatic organisms and is not classified as a highly toxic or extremely hazardous chemical. Under normal usage and standard discharge conditions, its environmental risk is controllable. The product meets the expected environmental safety of conventional industrial surctants. However, it should be noted that large-scale spills can still adversely affect water environments. Therefore, enterprises must strictly implement spill prevention and wastewater treatment measures to avoid discharging untreated waste liquids directly into sewers or natural water bodies. From the product specifications, OEP-70 performs well in terms of environmental compliance: the heavy metal content is very low (≤10 mg\/kg), arsenic content is strictly controlled (≤2 mg\/kg), and free phosphoric acid content is low (≤2.0%), which helps reduce the risk of eutrophication caused by phosphorus discharge into water bodies. As an isooctyl alcohol polyoxyethylene ether phosphate ester, its molecular structure contains polyoxyethylene segments with certain degradability potential in the environment. However, the database does not provide explicit biodegradation rate data. For strict environmental audits or certification applications, it is recommended to request specific test reports from Guoli Chemical. Technical Parameters (Environmentally Relevant Indicators) Test ItemSpecification\/ValueEnvironmental Significance Total Heavy Metals≤10 mg\/kgr below conventional limits, environmentally friendly Arsenic (As) Content≤2 mg\/kgComplies with strict heavy metal control standards Free Phosphoric Acid (as P₂O₅)≤2.0%Reduces risk of water eutrophication Environmental HazardLow toxicity to aquatic organismsNot classified as an acute aquatic toxic substance Active Content70.0±2.0%High active ingredient, reduces auxiliary usage Application Recommendations In applications such as textiles, papermaking, leather, and industrial cleaning, the low-foaming characteristics and high penetration efficiency of OEP-70 can help enterprises reduce the total amount of chemicals used, thereby indirectly lowering the load on wastewater treatment. It is recommended that enterprises incorporate it into cleaner production and environmentally friendly formulation optimization plans, and combine it with on-site wastewater treatment cilities to ensure discharge compliance. If downstream customers require certifications such as ZDHC, OEKO-TEX, or Bluesign, they can request corresponding certification support from Guoli Chemical. Points to Note Spill Emergency: In the event of a large spill, immediately contain it using inert absorbent materials to prevent entry into sewers or water bodies, and dispose of it in accordance with local environmental regulations. Obtaining Test Reports: The database does not currently provide ready-made test reports or MSDS attachments for OEP-70. It is recommended to obtain the latest SDS and third-party environmental test reports through the Guoli Chemical official website or by contacting a sales representative. Compliance Statement: The above analysis is based on product technical parameters and safety instructions. Official environmental compliance statements should be based on formal test reports and certification documents provided by the supplier.

Question 5

What are the advantages of alkali-resistant penetrating agent OEP-70 compared to other similar products?

Accepted Answer

According to technical data from Guoli Chemical, the core advantage of alkali-resistant penetrating agent OEP-70 lies in the **integrated combination of three major performance features: ultra-st penetration, extremely high alkali resistance, and hard water resistance**. This effectively simplifies formulations and reduces costs, making it particularly suitable for demanding processes under high alkali and hard water conditions. As a phosphate ester anionic surctant, its advantages become especially prominent when compared to traditional nonionic penetrants with poor alkali resistance or ordinary anionic penetrants that cannot tolerate hard water. Specific comparative analysis is as follows: | Performance Dimension | Alkali-resistant Penetrating Agent OEP-70 | Conventional Nonionic Penetrant (e.g., JFC type) | Key Advantage | | :--- | :--- | :--- | :--- | | **Alkali Resistance Stability** | Stable in **200-300 g/L NaOH** solution, no precipitation or stratification | Easily becomes turbid, stratifies, or even precipitates and ils in high-concentration alkali solutions | **Significantly improved**, ensuring stability in high-alkali processes such as alkali-oxygen one-bath and mercerizing | | **Penetration Speed** | ≤5 seconds (5 g/L, standard canvas sinking method) | Typically ranges from 10 to 60 seconds, greatly affected by alkalinity | **Ultra-st penetration**, shortening process time and improving production efficiency | | **Hard Water Tolerance** | Excellent hard water stability, no risk of calcium soap precipitation | Most nonionic penetrants tolerate hard water, but common anionic penetrants (e.g., sulfonate types) easily combine with calcium and magnesium ions to form precipitates | **Outstanding hard water resistance**, reducing equipment scaling and broadening the range of applicable water qualities | | **Foam Characteristics** | Low foam | Some products have higher foam | **Low foam property**, more suitable for modern processing equipment such as circulating spray and high-speed jet | | **Multifunctionality** | Integrates penetration, wetting, emulsification, dispersion, and antistatic properties | Relatively single function, mainly for penetration and wetting | **Multi-effect in one agent**, simplifying formulation and reducing overall costs | ### Detailed Advantages Explanation 1. **Ultra-st Penetration, Enhancing Production Efficiency** The penetration data of OEP-70 is **≤5 seconds**, meaning that under standard test conditions, it can completely wet and penetrate cotton canvas within seconds. This speed is much ster than many traditional products, directly shortening the wetting time in processes such as pretreatment and dyeing. 2. **Extremely High Alkali Resistance, Designed for Demanding Processes** The phosphate ester group in its structure imparts excellent alkali resistance stability. In high-concentration caustic soda solutions of **200-300 g/L**, OEP-70 remains dissolved, transparent, and chemically stable, which is unattainable for most nonionic surctants (due to cloud point limitations) and ordinary anionic penetrants. This makes it an ideal choice for extremely high-alkali processes such as cotton bric mercerizing and alkali-oxygen one-bath methods. 3. **Hard Water Resistance, Broadening Application Range** In many regions, industrial water has high hardness. The isooctanol polyoxyethylene ether phosphate ester structure of OEP-70 provides good tolerance to calcium and magnesium ions, making it less prone to precipitate formation. This ensures stable penetration and washing performance under hard water conditions and reduces maintenance costs associated with equipment scaling. ### Application Recommendations * **Textile Pretreatment**: In alkali-oxygen one-bath cold pad batch or steaming processes for cotton brics, the recommended dosage is **1-3 g/L**. * **Mercerizing Process**: As a penetrating aid for strong alkali mercerizing liquor, it significantly improves the wetting and penetration of caustic soda into brics. Recommended dosage is **2-5 g/L**. * **Industrial Cleaning and Papermaking**: Adding **1-5%** to alkaline cleaning agent or pulp penetrant formulations can effectively enhance deep penetration and removal of oils and fibers. ### Precautions 1. OEP-70 is an **anionic** surctant. When used in the same bath with cationic auxiliaries (such as certain fixing agents or softeners), compatibility tests should be conducted to avoid precipitation. 2. The product is acidic (pH 5.0-7.0 for a 1% aqueous solution). Its compatibility and water solubility are better after neutralization to potassium or sodium salt. 3. Storage temperature should be controlled between **5 and 40°C** to prevent freezing, which may cause product stratification and affect performance.

Question 6

How to store Alkali-resistant Penetrant OEP-70? What is the shelf life?

Accepted Answer

Alkali-resistant Penetrant OEP-70 should be stored in a cool, dry, and well-ventilated warehouse, with temperature controlled between 5～40℃, and the container kept sealed. The shelf life is usually 12 months (subject to the product label or COA). Detailed Description Alkali-resistant Penetrant OEP-70 (Isomeric octanol polyoxyethylene ether phosphate) is an anionic surctant. Proper storage is crucial for maintaining its penetration performance, alkali resistance stability, and overall product quality. Improper storage may lead to product stratification, decreased activity, or contamination, thereby affecting its effectiveness in high-alkali processes such as textile pretreatment, paper pulping, and industrial cleaning. Regarding the shelf life, there is no explicit shelf life data marked in the database. Generally, for anionic surctant products (such as phosphate esters), under strict compliance with storage conditions, the shelf life is 12 months from the date of manucture. The validity period indicated on the product packaging label or the certificate of analysis (COA) provided by the supplier should be referenced. For products beyond the shelf life, it is recommended to conduct small-scale tests to verify performance before deciding whether to continue using them. Storage Conditions Storage ElementSpecific Requirements Environmental ConditionsCool, dry, well-ventilated warehouse, away from heat sources and ignition sources Temperature Range5～40℃, avoid freezing (freezing may cause product stratification) Container StatusKeep sealed to prevent moisture and contamination Prohibited Co-storageAvoid storage with strong oxidizers, strong acids, and strong alkalis Isolation RequirementsKeep away from food, beverages, and animal feed Shelf LifeUsually 12 months (subject to product label or COA data) Application Recommendations After opening, use up promptly, and reseal the container immediately after each withdrawal to reduce prolonged contact with air. If the product stratifies or becomes turbid due to low temperature, allow it to slowly return to 15～30℃ and gently stir evenly before use. Do not heat directly. If significant changes in color, odor, or viscosity are observed, stop use and conduct quality verification. Precautions Wear chemical protective gloves and goggles during operation, avoiding direct skin and eye contact. Collect spills with inert absorbent materials, preventing entry into drains or water bodies. This product is non-flammable but may produce harmful gases when heated; use water spray, dry powder, or carbon dioxide extinguishers for firefighting. For detailed safety information, refer to the product's Safety Data Sheet (SDS).

Question 7

What safety precautions should be taken when using alkali-resistant penetrant OEP-70?

Accepted Answer

The use of alkali-resistant penetrant OEP-70 requires special attention to skin/eye protection, ventilation conditions, and storage environment. The specific details should be based on the product's official SDS. Detailed Description Alkali-resistant penetrant OEP-70 is an anionic surctant (isooctyl alcohol polyoxyethylene ether phosphate). Under normal industrial use conditions, its overall safety is good, but there are still certain health and environmental risks. The product is harmful if swallowed and may cause mild skin and eye irritation. Prolonged or repeated contact can lead to skin detting and dryness. It has low toxicity to aquatic organisms, but large spills can still adversely affect the water environment. Therefore, usage and waste disposal must comply with regulations. Special attention must be paid to personal protection during operation. The workplace should maintain good ventilation to avoid inhaling vapors, mists, or aerosols. Chemical-resistant protective gloves, safety goggles, and protective clothing must be worn. After operation, thoroughly wash hands and other potentially exposed areas. Eating, drinking, and smoking are prohibited in the workplace to avoid product contact with skin, eyes, and clothing. Key Points for Safe Operation and Storage ItemSpecific Requirements Personal ProtectionChemical-resistant gloves, safety goggles, protective clothing; wear respiratory protection if ventilation is insufficient Storage Temperature5~40°C, avoid freezing, prevent product stratification Storage EnvironmentCool, dry, well-ventilated, away from heat sources and ignition sources, keep containers tightly closed Incompatible MaterialsStrong oxidizers, strong acids, strong bases Fire ResponseThis product is not flammable but may generate harmful gases when heated; use water spray, dry powder, carbon dioxide to extinguish fire Emergency Treatment Skin contact: Remove contaminated clothing, rinse with plenty of water and soap for at least 15 minutes. If irritation persists, seek medical attention. Eye contact: Immediately lift eyelids, rinse continuously with plenty of running water or saline for at least 15 minutes, and seek medical examination. Inhalation: Move quickly to fresh air. If breathing is difficult, administer oxygen and seek medical attention immediately. Ingestion: Rinse mouth, do NOT induce vomiting. Seek medical attention immediately and show the product label or safety datasheet. Spill response: For small spills, absorb with inert material and transfer; for large spills, contain and prevent entry into drains or waterways. Dispose of waste in accordance with local regulations. Precautions The above safety information is compiled based on the general characteristics of nonionic/anionic surctants. Since product formulations may be adjusted, specific hazard information and preventive measures must be based on the official Safety Data Sheet (SDS) provided by the supplier. Users should evaluate suitability under specific process conditions and comply with relevant regulations. Although this product is non-flammable, it may produce harmful gases when heated or exposed to flame. Firefighters should wear self-contained breathing apparatus and full-body protective clothing.

Question 8

How to use the alkali-resistant penetrant OEP-70? What is the recommended dosage?

Accepted Answer

Alkali-resistant penetrant OEP-70 is an anionic high-concentration liquid (effective content about 70%), easily soluble in water, and can be directly added to alkali bath or working solution. The database does not provide official recommended dosages for various processes; the following are industry general reference dosages based on product performance parameters. Detailed Description Alkali-resistant penetrant OEP-70 (isooctyl alcohol polyoxyethylene ether phosphate) is a highly effective anionic surctant with an effective content of 70.0±2.0%, appearing as a light yellow to yellow transparent viscous liquid, easily soluble in water. In actual use, it can be directly added to the working solution and stirred evenly, or pre-diluted with warm water (40~50°C) into a 10%~20% solution before dosing to cilitate rapid dispersion. This product maintains excellent solubility and activity in high-concentration alkali baths of 200~300g/L NaOH, with no precipitation or delamination, making it particularly suitable for high-alkali processes such as one-bath alkali-oxygen, cold pad-batch, and mercerizing. According to technical parameters from the Guoli Chemical database, the penetration time of OEP-70 at a concentration of 5g/L on standard canvas is ≤5 seconds, and the critical micelle concentration (CMC) is 0.02%~0.06% (wt%), i.e., 0.2~0.6g/L can form effective micelles. This means that a very low dosage can achieve penetration and wetting effects. Actual usage can be adjusted upward based on alkali concentration, substrate type, and process requirements. Technical Parameters Parameter ItemValue (From Guoli Chemical Database) Effective Content70.0±2.0% Ionic TypeAnionic Penetration Power (5g/L, Standard Canvas)≤5 seconds Critical Micelle Concentration (CMC)0.02%~0.06% (wt%) Alkali Resistance StabilityResistant to strong alkali (200~300g/L NaOH solution) HLB Value11~13 pH of 1% Aqueous Solution5.0~7.0 Cloud Point (1% Aqueous Solution)>100°C Foam CharacteristicsLow foam Application Recommendations The following are reference dosages based on product performance and industry general experience (based on commercial raw liquid). The specific dosage should be determined through small-scale trials according to actual process conditions: Application AreaProcess/UseReference Dosage (Commercial Raw Liquid) Textile PretreatmentOne-bath alkali-oxygen for cotton and blended brics2~5 g/L Textile PretreatmentCold pad-batch process3~8 g/L Textile PretreatmentMercerizing penetrant3~5 g/L Textile Scouring and BleachingHigh-alkali scouring and oxygen bleaching1~3 g/L Leather ProcessingDegreasing agent, penetrant1~5 g/L Paper PulpingPulping penetration aid0.5~2 g/L Paper DeinkingWaste paper deinking process0.5~2 g/L Industrial CleaningAlkaline cleaning agent formulation component1~10 g/L (or 1%~5% of total formulation) Note: The above dosages are industry general reference values. The Guoli Chemical product database does not have official recommended dosage data for various processes. Users are advised to determine the optimal dosage through small-scale trials based on their own process conditions (alkali concentration, temperature, substrate type, equipment, etc.). Precautions Pre-dilution Recommendation: This product is a high-viscosity liquid (300~500 mPa·s, 25°C). When directly dosing, it is recommended to pre-dilute with warm water and add slowly while stirring until evenly dispersed to avoid local high concentration. Addition Sequence: In alkaline working solutions, it is recommended to first dissolve the alkali agent evenly, then add OEP-70 to ensure optimal dispersion and stability in the strong alkali system. Compatibility: This product is an anionic surctant and is compatible with nonionic and anionic additives; compatibility tests should be conducted when mixing with cationic additives. Storage: Storage temperature should be controlled at 5~40°C, avoiding freezing to prevent product delamination. If slight delamination or turbidity occurs before use, stirring evenly does not affect the use effect. Safety Protection: It is recommended to wear chemical protective gloves and goggles during operation to avoid direct skin and eye contact. In case of accidental contact, rinse immediately with plenty of water.

Question 9

In which industries and processes is the alkali-resistant penetrating agent OEP-70 mainly applied?

Accepted Answer

The alkali-resistant penetrating agent OEP-70 is mainly applied in four major industries: textile printing and dyeing, papermaking and pulping, leather processing, and industrial cleaning. It covers multiple high-alkali process scenarios such as alkali-oxygen one-bath pretreatment, cold pad-batch, mercerizing, scouring and bleaching, waste paper deinking, leather degreasing, and alkaline metal cleaning. Detailed Description The alkali-resistant penetrating agent OEP-70 (isooctyl alcohol polyoxyethylene ether phosphate potassium salt) is an anionic surctant specially designed for high-alkali process environments. The phosphate ester group in its molecular structure endows the product with excellent alkali resistance stability, allowing it to maintain outstanding solubility and penetrating activity in strong alkali baths without precipitation or stratification. This property makes OEP-70 an ideal penetrating agent choice for key processes such as alkali-oxygen one-bath, cold pad-batch, and mercerizing in the textile printing and dyeing industry. Beyond the textile field, OEP-70, with its rapid penetration and excellent wetting and spreading properties, has successfully expanded to multiple industrial sectors, including penetration aids in papermaking and pulping and waste paper deinking processes, degreasing and penetration treatment in leather processing, and alkaline cleaning agent formulations for industrial metal surces. This product integrates three major functions—penetration, alkali resistance, and hard water resistance—effectively simplifying the formulation system and reducing overall costs. Furthermore, OEP-70 exhibits outstanding hard water tolerance and low foaming characteristics, preventing calcium soap precipitation in hard water environments, reducing the risk of equipment scaling, and adapting to circulating spray and high-speed processing equipment, further broadening its applicability in industrial applications. Application Areas at a Glance Industry Process/Application Functional Role Textile Printing and Dyeing Alkali-oxygen one-bath pretreatment, cold pad-batch process, mercerizing process High-efficiency penetrating agent, promoting uniform chemical action Textile Printing and Dyeing High-alkali scouring and oxygen bleaching processes Improving penetration and treatment uniformity Papermaking and Pulping Pulping penetration, waste paper deinking Promoting chemical penetration and ink separation Leather Processing Degreasing, penetration treatment Improving treatment efficiency and uniformity Industrial Cleaning Metal surce treatment, alkaline cleaning agent formulation Enhancing oil and grease removal effect Application Suggestions In textile pretreatment processes, OEP-70 is particularly suitable for alkali-oxygen one-bath processing of cotton and its blended brics. It is recommended to be added as a core component of the penetrating agent in the treatment bath, achieving deep penetration within seconds and significantly shortening the process time. For mercerizing processes, its excellent alkali resistance stability ensures continuous wetting and penetration in high-concentration caustic soda baths. In waste paper deinking processes, OEP-70 effectively promotes chemical penetration into fibers, accelerating ink stripping and separation. When used in combination in industrial alkaline cleaning agents, OEP-70 enhances the removal of oil stains on metal surces, while its low foaming property makes it suitable for high-pressure spray cleaning systems. Precautions The product is an anionic surctant. When compounding, attention must be paid to compatibility with cationic auxiliaries to avoid ionic conflicts causing precipitation. Storage temperature should be controlled between 5 and 40°C to avoid freezing and prevent product stratification. It is recommended to wear chemical protective gloves and goggles during operation to avoid direct skin and eye contact. May be harmful if swallowed. Eating and smoking should be prohibited in the workplace. The specific dosage for each process should be determined through experiments based on actual alkali concentration, processing temperature, and substrate type; no standardized addition ratio data is available.

Question 10

What are the physicochemical technical parameters of the alkali-resistant penetrant OEP-70?

Accepted Answer

Alkali-resistant penetrant OEP-70 is a high-performance anionic surctant with comprehensive physicochemical properties and verifiable data, whose core parameters cover multiple dimensions including basic physical properties, surce activity, chemical composition, and application performance. Detailed Description Alkali-resistant penetrant OEP-70 (isooctyl polyoxyethylene ether phosphate) is an anionic surctant specially designed for high-alkali process environments. It appears as a light yellow to yellow transparent viscous liquid and is easily soluble in water. Its molecular structure consists of a hydrophobic group of 2-ethylhexyl and a hydrophilic group composed of a polyoxyethylene ether chain segment combined with a phosphate group, with an EO number of approximately 6 and a molecular weight range of 450~550. This structure endows the product with excellent penetrating power and outstanding alkali resistance stability. It remains soluble and active in 200~300g/L NaOH solution without precipitation or stratification. The effective content of the product is 70.0±2.0%, making it a high-concentration product. Its HLB value ranges from 11 to 13, which lies in the transition zone between wetting agents and O/W emulsifiers, balancing both wetting and dispersing functions. The cloud point is above 100°C (1% aqueous solution), indicating that it is not prone to phase separation in high-temperature processes. Its low foam characteristic makes it suitable for circulating spray and high-speed processing equipment, preventing production efficiency losses due to foam accumulation. The following technical parameters are all sourced from the Guoli Chemical product database, representing measured or typical values, and can be used as references for raw material screening, formulation design, and quality control. Technical Parameters I. Basic Physical Parameters Parameter ItemSpecification/Typical ValueRemarks Chemical NameIsooctyl polyoxyethylene ether phosphateIncluding potassium salt form CAS Number68439-51-0— Molecular FormulaC₈H₁₇O(C₂H₄O)nPO₃H₂n≈6 Molecular Weight450~550— Ionic TypeAnionic— Appearance (25°C)Light yellow to yellow transparent viscous liquid— Effective Content (Solid Content)70.0±2.0%— pH Value (1% Aqueous Solution)5.0~7.0— pH Value (5% Aqueous Solution)5.5~7.0— Density (25°C)1.05±0.05 g/cm³— Kinematic Viscosity (25°C)300~500 mm²/sEquivalent to 300~500 mPa·s Refractive Index (25°C)1.455~1.465— Melting Point/Freezing PointMaintains fluidity at low temperatures Flash Point>150°CNon-flammable Moisture Content≤1.0%— HygroscopicityModerately hygroscopicRecommended to store sealed SolubilityEasily soluble in water— II. Surce Activity Parameters Parameter ItemSpecification/Typical ValueTest Conditions HLB Value11~13— Surce Tension28~32 mN/m1% aqueous solution, 25°C Critical Micelle Concentration (CMC)0.02~0.06% (wt%)25°C Cloud Point>100°C1% aqueous solution Penetration Force≤5 seconds5g/L, standard canvas piece Foaming PropertyLow foam— Alkali ResistanceResistant to strong alkali (200~300g/L NaOH)Stable in solution, no precipitation or stratification III. Chemical Index Parameters Parameter ItemSpecification/Typical ValueRemarks Acid Value80~120 mgKOH/gReflects acidic characteristics of phosphate group Saponification Value150~180 mgKOH/g— Hydroxyl Value20~50 mgKOH/g— Iodine Value≤1Extremely low unsaturation, chemically stable Unsaturation≤0.05 mol/kg— Free Phosphoric Acid≤2.0%— <

Alkali-resistant Penetrant OEP-70

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Phosphate Ester / Penetrant Applications

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Property	Value
CAS No.	68439-51-0
Molecular Formula	C8H17O(C2H4O)nPO3H2, n≈6
Appearance	Pale yellow to yellow
Ionic Type	Anionic
Avg. Molecular Weight	450~550
Cloud Point	>100°C (1%aq. soln.)
Active Content	70.0±2.0
pH Value(1%)	5.0~7.0
pH Value(5%)	5.5~7.0
Iodine Value	≤1
Solubility	Readily soluble in water
Surface Tension	28~32 mN/m (1%, 25°C)
CMC	0.02~0.06% (wt%)
Acid Value	80~120 mgKOH/g
Saponification Value	150~180 mgKOH/g
Hydroxyl Value	20~50 mgKOH/g
Moisture	≤1.0
Density	1.05±0.05 g/cm³ (25°C)
Kinematic Viscosity	300~500 mm²/s (25°C)
Refractive Index	1.455~1.465 (25°C)
Flash Point	＞150°C
Hygroscopicity	Slightly hygroscopic
Chemical Stability	Alkali and high-temperature resistant; stable in 200g/L NaOH
Penetration	≤5 s (5 g/L, standard canvas disc)
Foam Property	Low foam
Alkali Resistance	Resistant to strong alkali (200-300 g/L NaOH)
Unsaturation	≤0.05 mol/kg
Viscosity	300-500 mPa·s (25°C)
Melting Point	＜0°C
Free Phosphoric Acid	≤2.0%
Monoester Content	30%~50%
Diester Content	20%~40%
Low Shear Viscosity	300~500 mPa·s
Solid Content	70.0±2.0%
Free Alcohol	≤3.0%
Phosphate Monoester	30%~50%
Phosphate Diester	20%~40%
Bound Phosphorus	3.0%~5.0% (as P₂O₅)
Heavy Metal	≤10 mg/kg
Arsenic	≤2 mg/kg

Alkali-resistant Penetrant OEP-70

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Application Guidelines

Packaging and Storage

Phosphate Ester / Penetrant Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

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