CAS :9067-57-6
一．Product Property
Twain (or polysorbate) is a non-ionic surfactant with an unpleasant odor, warm and slightly bitter taste. It is a partial fatty acid ester of a series of polyoxyethylene sorbitan alcohol. It is widely used as an emulsifier and a solubilizer for oil-based substances. Polysorbate is generally regarded as a non-toxic and non-irritating material.
二．Quality Index:
| Specification | Picture | Appearance (25°C) | Hydroxyl Value (mgKOH/g) | Saponification Value (mgKOH/g) | Moisture (%) | Acid Value (mgKOH/g) | HLB Value |
| Tween 85 / T-85 |  | Light yellow to amber viscous liquid | 40 – 60 | 83 – 98 | ≤ 3 | ≤ 2.0 | 11 |
| Tween 20 / T-20 |  | Amber viscous liquid | 90 – 110 | 40 – 50 | ≤ 3 | ≤ 2.0 | 16.5 |
| Tween 81 / T-81 |  | Light yellow to amber viscous liquid | 135 – 165 | 90 – 105 | ≤ 3 | ≤ 2.0 | 10 |
| Tween 40 / T-40 |  | Light yellow waxy solid | 85 – 100 | 40 – 55 | ≤ 3 | ≤ 2.0 | 15.5 |
| Tween 60 / T-60 |  | Light yellow waxy solid | 80 – 105 | 40 – 55 | ≤ 3 | ≤ 2.0 | 14.5 |
| Tween 80 / T-80 |  | Amber viscous oily liquid | 65 – 82 | 43 – 55 | ≤ 3 | ≤ 2.0 | 15 |
三．Application scope and Usage
| Type | Applications |
| Tween 20 (T-20) | – Food industry (cakes, ice cream, shortening) – Mineral oil emulsifier – Dye solvent, cosmetic emulsifier – Pharmaceutical emulsifier/dispersant/stabilizer – Foam plastic stabilizer, photo emulsion additive |
| Tween 40 (T-40) | – Food, pharmaceuticals, cosmetics – Water-based coatings – Industrial dispersant and lubricant |
| Tween 60 (T-60) | – Food/drug/cosmetic emulsifier – Textile softener/antistatic agent – Polyacrylonitrile spinning oil component – Improves fiber dyeing performance |
| Tween 80 (T-80) | – Pharmaceutical/cosmetic/food industries – Polyurethane foam stabilizer – Synthetic fiber antistatic agent – Film emulsion wetting agent – Oilfield emulsifier/paraffin inhibitor – Machine tool lubricating coolant |
| Tween 81 (T-81) | – Special emulsifier for oil-based systems – Industrial lubricant and dispersant |
| Tween 85 (T-85) | – Water-in-oil (W/O) system emulsifier – Industrial antistatic agent/lubricant – Solvent and dispersing aid |
四．Package and Storage
Packed in 200kg iron drums and 50kg plastic drums.
In accordance with the storage and transportation of general chemicals.
Store in a dry and well-ventilated place.
Shelf life: two years
