Sodium carboxy methyl cellulose
carboxy methyl cellulose(CMC) also also known Cellulose Gum or sodium carboxymethyl cellulose is produced through a chemical process involving the reaction of cellulose with sodium hydroxide and chloroacetic acid. This reaction introduces carboxymethyl groups onto the cellulose structure, resulting in the formation of Cellulose Gum.
Carboxymethylcellulose (CMC) is a widely used anti-redeposition agent in powdered detergents, known for its efficacy in preventing soil reattachment. It is a water-soluble polymer derived from cellulose and is often utilized to enhance the performance of detergent formulations.
CMC is extensively employed in the detergent industry due to its emulsifying and protecting colloid properties. It plays a crucial role in preventing dirt reattachment during the washing process, enabling fabrics to remain soft, and reducing skin irritation after washing .
In detergent powder, CMC exhibits a high degree of substitution, uniformity, and good transparency. Its dispersion in water is excellent, and it resists reabsorption, contributing to the overall effectiveness of detergent formulations .
Additional information
| CAS | 9004-32-4 |
|---|---|
| Functions | BINDING, EMULSION STABILISING, FILM FORMING, FRAGRANCE, VISCOSITY CONTROLLING, |
| Formula | [C₆H₇O₂(OH)ₓ(OCH₂COONa)ᵧ]ₙ, where x + y = 3 and x represents the number of unreacted hydroxyl groups and y is the degree of substitution (DS) for the carboxymethyl groups |
| Molar Mass | average Mw ~250,000 |
| Application | detergent and cleaning products |
| Restriction | No data |
| Trade names | CMC AM 250 XF, SCMC DCCOL IG3040, CMC MM 75 XF |
| Producers | Changshu Wealthy Science And Technology Co.ltd, DuPont, Sidley Chemical Co,. Ltd |