Ethylene Glycol Mono Stearate, EGMS
- CAS Number: 110-30-5
- Chemical Formula: C20H40O4
- MOQ: 1000KG
- Shelf Life: 2 years
- Forms: Powder
- Synonyms: Glycol Stearate, Ethylene Glycol Stearate, Stearic Acid Ethylene Glycol Ester
Product Description
What Is Ethylene Glycol Mono Stearate?
Ethylene Glycol Mono Stearate (EGMS) is an ester derived from stearic acid (C18H36O2) and ethylene glycol (C2H6O2). In cosmetics, medications, and personal care items, it is frequently utilized as a non-ionic surfactant, emulsifier, and stabilizer. The smoothness and consistency of formulations including body washes, lotions, creams, and shampoos are enhanced by EGMS. By improving emulsion stability, it facilitates better mixing between water and oil.
Preparation of EGMS involves an esterification reaction between stearic acid and ethylene glycol, typically in the presence of a catalyst. The reaction is carried out under controlled heat (160°C–200°C) to form the ester, and water is removed as a byproduct. After the reaction, the product is purified by neutralization, filtration, and sometimes distillation to ensure high purity.
Related Parameters:
| Items | Standards |
| Purity (by GC) | ≥ 98% |
| Acid Value | ≤ 1 mg KOH/g |
| Saponification Value | 130 – 160 mg KOH/g |
| Melting Point | 56°C – 60°C |
| Color (Gardner Scale) | ≤ 3 (Typically 1-2) |
| Loss on Drying (LOD) | ≤ 1% |
| Refractive Index (at 25°C) | 1.436 – 1.440 |
| Flash Point | ≥ 200°C |
Recommended Dosage of Ethylene Glycol Mono Stearate:
| Applications | Dosage |
| Emulsifier in Cosmetics & Skincare | 2% – 5% |
| Stabilizer in Hair Care Products | 1% – 3% |
| Surfactant in Facial Cleansers | 1% – 3% |
| Emulsifier in Pharmaceuticals | 1% – 3% |
| Surfactant in Personal Care Products | 1% – 5% |
| Dispersing Agent in Food Products | 0.1% – 0.5% |
| Lubricant in Textile Industry | 0.5% – 2% |
Ethylene Glycol Mono Stearate Has Wide Range of Uses:
- Cosmetics & Skincare: To assist stabilize oil and water mixes, EGMS is frequently used as an emulsifier in body washes, lotions, and creams. It also acts as a surfactant in facial cleansers and makeup removers, improving their cleansing properties.
- Hair Care: In shampoos and conditioners, EGMS functions as a stabilizer, ensuring the product remains homogeneous and preventing the separation of ingredients.
- Pharmaceuticals: EGMS serves as an emulsifier in topical ointments and creams, maintaining texture and stability.
- Personal Care: In deodorants and shaving creams, EGMS enhances spreadability and texture.
- Food & Textile Industries: EGMS is used as a dispersing agent in food and a lubricant in textile processing, improving the efficiency and quality of the final products.
User Asked Question:
Q: What is the difference between EGMS and other emulsifiers like Glyceryl Stearate?
A: Both Ethylene Glycol Mono Stearate (EGMS) and Glyceryl Stearate are emulsifiers used to stabilize oil and water mixtures, but they differ in their chemical composition and performance. Glyceryl Stearate is created from glycerin and stearic acid, whereas EGMS is made from ethylene glycol and stearic acid. Due to their different chemical structures, EGMS often provides better stability and texture consistency in certain formulations, particularly in products requiring enhanced emulsification or long-lasting performance. Glyceryl Stearate, on the other hand, is often used in milder formulations.
