Thickener 6000DS (white to off-white powder) and Thickener 638 (slightly yellow transparent liquid) are both PEG-150 Distearate. Their core chemical structures are identical, so physicochemical indicators such as acid value, saponification value, and content fall within the same range. The differences lie mainly in appearance and dissolution process: 6000DS is in powder form, convenient for precise measurement and long-term storage; 638 is a liquid, dispersing faster, especially suitable for cold blending processes. PEG-150, as a general-grade raw material, is typically supplied in white to slightly yellow flakes or granules.
This series of products are nonionic surfactants with an HLB value of approximately 18.5, exhibiting excellent hydrophilicity. They are chemically stable, resistant to acid, alkali, and hard water, maintaining stable thickening effects under complex water quality and broad pH conditions. The products are slightly hygroscopic and require moisture protection during storage; recommended storage temperature is not exceeding 45°C with relative humidity below 70%.
| Item | Specification / Value |
|---|---|
| Chemical Name | PEG-150 Distearate (Polyethylene Glycol-150 Distearate) |
| CAS No. | 9005-08-07 |
| Ionic Type | Nonionic |
| Molecular Formula | C17H35COO(CH2CH2O)nOCC17H35, n≈150 |
| Molecular Weight | Approximately 6000~7000 |
| Appearance | Thickener 6000DS: White to off-white powder Thickener 638: Slightly yellow transparent liquid PEG-150: White to slightly yellow flakes or granules |
| Active Content | ≥98% |
| HLB Value | 18.5 |
| Melting Point | 50~60℃ |
| Density | 1.11~1.13 |
| Refractive Index (25℃) | PEG-150: 1.466~1.468 |
| Flash Point | >200℃ |
| pH of 1% Aqueous Solution | 5.0~7.0 |
| pH of 5% Aqueous Solution | 4.5~7.5 |
| Acid Value | ≤5 mgKOH/g |
| Saponification Value | 15~25 mgKOH/g |
| Hydroxyl Value | ≤10 mgKOH/g |
| Iodine Value | ≤1 |
| Unsaturation | ≤1 mol/kg |
| Diester Content | ≥95% |
| Free Alcohol | ≤1% |
| Moisture | ≤1.0% |
| Solids Content | ≥98% |
| Solubility | 6000DS/638: Dispersible in hot water, soluble in ethanol, acetone PEG-150: Easily soluble in water, ethanol, acetone |
| Foaming Property | Low foam |
| Hygroscopicity | Slightly hygroscopic |
| Heavy Metals | ≤20 mg/kg |
| Arsenic | ≤2 mg/kg |
| Shelf Life | 2 years (unopened, under recommended storage conditions) |
| Packaging | 25 kg woven bag / kraft bag |
Thickener 6000DS (Powder): Most suitable for water-based architectural coatings, water-based adhesives, water-based inks, and textile printing pastes. It is recommended to pre-disperse in hot water before adding to the formulation. The dosage is adjusted based on the target viscosity, typically 0.5%~3% of the total formula weight.
Thickener 638 (Liquid): More suitable for cold blending processes, widely used in latex paints, water-based industrial coatings, and adhesive systems. It can be added directly under stirring, imparting moderate thixotropy to the system. Recommended dosage is 0.5%~5%.
PEG-150 (General Raw Material): An ideal thickener and stabilizer for personal care products such as shampoos, body washes, creams, and lotions. It performs excellently in surfactant-containing aqueous systems, with recommended dosage typically ranging from 0.3%~3%.