| Property | Typical Value(s) |
| Appearance | White to off-white, waxy solid or flakes |
| Odor | Mild, characteristic odor |
| pH (1% solution in water at 25°C) | 5.0 - 7.0 |
| Active Matter (%) | ≥ 98 |
| Density (g/cm³ at 25°C) | 0.90 - 0.95 |
| Solubility | Insoluble in water; soluble in oils and organic solvents |
| HLB Value | 3.8 |
| Melting Point (°C) | 45 - 60 |
| Acid Value (mg KOH/g) | ≤ 2.0 |
| Saponification Value (mg KOH/g) | 165 - 185 |
| Iodine Value | ≤ 1.0 |
| Flash Point (closed cup, °C) | > 200 |
| Storage Conditions | Store in a cool, dry place away from incompatible materials and direct sunlight. Keep containers tightly closed. |
| Shelf Life (under proper storage conditions) | 2 years |
Q1: What is Propylene Glycol Monostearate (PGMS) and what are its primary uses?
Re: Propylene Glycol Monostearate (PGMS) is a non-ionic surfactant and emulsifier widely used in various industries. It serves as an effective emulsifying agent in cosmetics, personal care products, pharmaceuticals, and food applications. PGMS helps to stabilize oil-in-water emulsions, making it valuable in the formulation of creams, lotions, and ointments. In the food industry, it acts as an anti-caking agent and emulsifier in confectionery items, baked goods, and other processed foods.
Q2: How does PGMS enhance the performance of formulations?
Re: PGMS enhances the performance of formulations by providing excellent emulsifying properties. It stabilizes mixtures of water and oils, ensuring that products remain homogeneous over time without separating. This leads to improved texture, consistency, and stability. In cosmetic formulations, PGMS can improve the spreadability and feel of the product on the skin. Its HLB (Hydrophilic-Lipophilic Balance) value of approximately 3.8 makes it particularly suitable for oil-in-water emulsions, where it helps to disperse oil droplets evenly throughout the aqueous phase.
Q3: Is PGMS safe for use in consumer products?
Re: PGMS is generally recognized as safe (GRAS) for use in food products by the U.S. Food and Drug Administration (FDA) and has been approved for use in cosmetics and personal care products by various regulatory bodies worldwide. However, it is important to follow proper usage guidelines and conduct appropriate safety testing when formulating new products. The material can be irritating to the skin and eyes, so it should be handled carefully. Always refer to the Material Safety Data Sheet (MSDS) or Technical Data Sheet (TDS) provided by the supplier for detailed safety information and specific handling instructions.
Q4: What safety precautions should be taken when handling PGMS?
Re: When handling PGMS, it is important to wear appropriate personal protective equipment (PPE) such as gloves, safety goggles, and protective clothing to prevent skin and eye contact. Ensure adequate ventilation to avoid inhalation of any dust, although this risk is minimal given its solid form at room temperature. Store the material in a cool, dry place away from incompatible materials and direct sunlight. Keep containers tightly closed to prevent contamination and degradation. In case of contact with the skin or eyes, rinse thoroughly with water. If ingested, seek medical advice immediately. Always refer to the Material Safety Data Sheet (MSDS) or Technical Data Sheet (TDS) provided by the supplier for detailed safety information and emergency procedures.
PGMS Propylene glycol monostearate Properties |
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| Other Names | Propylene glycol fatty acid ester; Propylene glycol ester |
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| CAS No. | 1323-39-3 | |
| Compound Formula | C21H42O3 | |
| Molecular Weight | 342.56 | |
| Appearance | White powder or flake solid | |
| Melting Point | N/A | |
| Boiling Point | N/A | |
| Density | N/A | |
| Solubility in H2O | N/A | |
| Exact Mass | N/A | |
PGMS Propylene glycol monostearate Health & Safety Information |
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| Signal Word | N/A | |
| Hazard Statements | N/A | |
| Hazard Codes | N/A | |
| Risk Codes | N/A | |
| Safety Statements | N/A | |
| Transport Information |
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