The pH level of Glycerol Monostearate (GMS) generally falls within the range of 8 to 10. This indicates that GMS is typically slightly alkaline.
Glycerol Monostearate, commonly known as GMS, is a versatile organic molecule widely used in various industries. It is an ester formed from glycerol and stearic acid. Its properties make it a valuable ingredient in food, pharmaceuticals, and cosmetics.
Physical Properties of GMS
Understanding the physical properties of GMS is crucial for its application and handling. Here's a summary of its key characteristics:
| Property | Value |
|---|---|
| Colour | Almost white flakes |
| Melting point/Freezing point | 54 - 60 °C |
| pH value | 8 - 10 |
| Odour | Odorless |
What Does the pH Level Mean for GMS?
A pH value between 8 and 10 signifies that GMS is mildly basic or alkaline. This characteristic is important in applications where pH stability is critical. For instance, in emulsion systems (like lotions or creams), the pH of ingredients can affect the stability and effectiveness of the final product. GMS's pH contributes to the overall pH balance of formulations it's incorporated into.
Common Uses of Glycerol Monostearate
GMS's unique properties, including its pH, make it suitable for a range of applications:
- Emulsifier: It helps in blending oil and water, which are typically immiscible. This is vital in producing stable emulsions like margarines, ice creams, and baked goods, as well as cosmetic creams and lotions.
- Thickener: It can increase the viscosity of liquids, providing desired texture in food products and personal care items.
- Stabilizer: GMS helps to prevent separation of ingredients over time, extending shelf life and maintaining product quality.
- Pearlizing agent: In some cosmetic formulations, it contributes to a pearlescent appearance.
Its odorless nature and solid form (flakes) also contribute to its ease of use in manufacturing processes.
