Carboxymethylcellulose Natural cellulose is the most widely distributed and most abundant polysaccharide in nature.
which is very rich in sources.Current modification techniques of cellulose mainly focus on both etherification and esterification.
Carboxymethylation reaction is one type of the etherification technique.
After carboxymethylation of cellulose, carboxymethyl cellulose (CMC).
Its aqueous solution has thickening, film formation, adhesion, water retention, colloid Protecting emulsification and county floating role, widely used in dry oil, food, medicine, textile and paper making industries, is one of the most important cellulose ethers.
Carboxymethylcellulose (CarboxymethylCellulose, CMC) is a commonly used food additive, its sodium salt (sodium carboxymethyl cellulose sodium) is commonly used as adhesive, paste.
Grinding in the same direction for no bubble, mucus can be linear.
Essential information Chemical name: sodium carboxymethyl cellulose, also known as carboxymethyl cellulose English full name.Carboxyl methyl Cellulose English abbreviation: CMC Molecular formula: [C6H7O2 (OH) 2CH2COONa] n Basic nature physical property Carboxymethyl cellulose sodium (CMC) is an anionic type cellulose, the appearance of white or slightly yellow fiber powder or white powder, no beer, non-toxic.
Discolor temperature 227℃, carbonization temperature 252℃, 2% aqueous surface tension 71mn / n
Chemical property Cellulose derivatives with carboxymethyl substituents are treated with cellulose with sodium hydroxide to form alkali cellulose and react with chloroacetic acid.
The glucose units that constitute cellulose have 3 hydroxyl groups that can be replaced, so the products with different degrees of displacement can be obtained.
The average 1mmol human carboxymethyl group per 1g thousand weight guide is not dissolved in water and dilute acid
Suitable for beverage processing. reaction principle Lord of CMC