Sodium Carboxymethyl Cellulose(CMC)
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CMC Carboxymethyl Cellulose
CAS: 9004-32-4
Carboxymethyl Cellulose(CMC) is an anionic water soluble polymer derived from the world’s most abundant polymer – cotton cellulose.It is also known as cellulose gum , and its sodium salt are important cellulose derivatives. The bound carboxymethyl groups (-CH2-COOH) along the polymer chain makes the cellulose water-soluble. When dissolved, it increases the viscosity of aqueous solutions, suspensions and emulsions, and at higher concentration, it provides pseudo-plasticity or thixotropy. As a natural polyelectrolyte, CMC imparts a surface charge to neutral particles and can be used to improve the stability of aqueous colloids and gels or to induce agglomeration. It provides good properties of thickening, water retention, film-forming, rheology and lubricity, which is widely used in food, personal care products, industrial paints, ceramics, oil drilling, building materials etc.