Polyethylene Glycol PEG-300 (CAS No.: 25322-68-3), produced by Guoli Chemical, is a nonionic surfactant. It appears as a colorless to slightly yellow transparent viscous liquid and exhibits excellent emulsifying, wetting, dispersing, and solubilizing capabilities. It also has outstanding chemical stability and can withstand acid, alkali, and hard water environments. Its core value lies in its versatility—it can play key roles in multiple fields such as pharmaceuticals, daily chemicals, industry, and agriculture, allowing users to flexibly adjust the dosage according to formulation goals.
The recommended addition amount is not a fixed value; it should be optimized based on system characteristics, target effects, and cost control. Generally, lower addition amounts (e.g., spreading agents, lubricants) use 0.5%–3%, medium amounts (e.g., humectants, plasticizers) range from 2%–10%, and high amounts (e.g., ointment bases, suppository bases) can reach 15%–30%. Below are specific reference suggestions for various industries:
| Application Field | Usage Method | Recommended Addition Amount (Mass Fraction) |
|---|---|---|
| Pharmaceutical Ointment Base | Blend with other pharmaceutical excipients, heat in a water bath to 50–60°C, and stir until homogeneous | 20%–30% |
| Injection Solvent | Used as one component of a co-solvent system, requiring strict aseptic operation | 10%–20% (depending on drug solubility) |
| Tablet Coating/Lubricant | Prepare coating solution for direct spraying, or add directly to powder blend | 0.5%–3% |
| Daily Chemical Humectant | Add to the water phase, stir at room temperature until dissolved, then mix with other components | 2%–8% |
| Skincare Product/Shampoo | Can be added directly as a lubricant and humectant | 1%–5% |
| Coating/Ink Plasticizer | Add during grinding or paint mixing stage, mix thoroughly | 3%–10% |
| Textile Antistatic/Lubricant | Prepare treatment solution for soaking or spraying on fibers | 0.5%–3% (working solution concentration) |
| Pesticide Emulsifier/Spreading Agent | Dilute and mix with pesticide concentrate | 0.1%–1% (field dilution ratio) |
| Rubber Mold Release Agent | Apply or spray directly onto the mold surface | 5%–15% (use after dilution) |
(Note: The above addition amounts are industry general reference values; specific formulation dosages should be determined through preliminary experiments.)
| Performance Parameter | Guoli Chemical PEG-300 Specification |
|---|---|
| Ionic Type | Nonionic |
| Active Content | ≥99% |
| HLB Value | Approximately 16.5 |
| pH Value (1% Aqueous Solution) | 4.5–7.5 |
| Hydroxyl Value | 356–394 (mg KOH/g) |
| Kinematic Viscosity | 60–75 mm²/s |
| Moisture Content | ≤1.0% |
| Solidification Point | -15 to -8°C |
| Solubility | Easily soluble in water, ethanol, acetone |