Views:3 Author:Site Editor Publish Time: 2019-11-21 Origin:Site
Sodium carboxymethyl cellulose (CMC) is a cellulose derivative, an ionic cellulose gum, and owing to its unique thickening, suspending, adhesion, and water retention properties, is widely used in various industrial fields.
CMC has the functions of thickening, suspending, emulsifying, stabilizing, shaping, filming, bulking, anti-corrosion, retaining freshness, acid-resisting, health protecting, etc. It can replace the application of guar gum, gelatin, agar, sodium alginate, and pectin. It is widely used in modern food industry, such as frozen food, solid drink, fruit juice, jam, lactic acid drinks, condiment, biscuit, instant noodles, bakery products, meat products, etc.
Sodium carboxymethyl cellulose is generally divided into 3 grades depending on the purity: the food high-purity grade (with a content more than 99.5%), the industrial grade (with a content more than 90%), and crude products (with a content more than 65%). According to the viscosity (molecular weight), there are 3 types: high viscosity (with the 1% solution viscosity of 5000-8500 Pa·S), medium viscosity (with the 1% solution viscosity of 1000-5000 Pa·S), and low viscosity (with the 1% solution viscosity of 5-1000 Pa·S). Therefore, Sodium carboxymethyl cellulose has many varieties suitable for requirements of various applications.
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Hydroxypropyl methylcellulose (INN name: Hypromellose), also simplified as hydroxypropyl methylcellulose (HPMC), is a variety of nonionic cellulose mixed ethers. It is a semi-synthetic, inactive, viscoelastic polymer .This product is industrial grade HPMC, mainly used as the dispersing agent for PVC