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- One of the primary uses of hydroxyethyl cellulose is in the construction industry. It is often added to cement-based products, such as tile adhesives and grouts, to improve their workability and increase their water retention. Its thickening properties help to prevent sagging and slumping during application, while its ability to form a strong film ensures long-lasting adhesion between tiles and substrates.
- In the cosmetic industry, hydroxy methyl cellulose is used in a variety of products, including lotions, creams, and hair care products. HMC is valued for its ability to form a film on the skin or hair, helping to protect and moisturize the surface and improve the overall appearance and feel. HMC is also used as a thickener and stabilizer in these products, helping to create a smooth and creamy texture that is easy to apply and spread.
Answer: HPMC viscosity is inversely proportional to temperature, meaning that viscosity increases as temperature decreases. When we refer to the viscosity of a product, it typically indicates the measurement of its 2% aqueous solution at a temperature of 20 degrees Celsius.


13. What is the difference between the cold water instant type and hot soluble type of hydroxypropyl methyl cellulose in the production process?
1.1 Background and Terms of Reference as provided by the requestor

Appearance: White or similar white powder.
Visual density: 0.25-0.70g/cm (usually about 0.5g/cm), specific gravity 1.26-1.31.


In the absence of data, the FEEDAP Panel is not in the position to conclude on the safety of HPMC for the user.