CMC FG1000

KimaCell^® CMC FG1000 sodium carboxymethyl cellulose, is also known as carboxymethyl cellulose. Its structure is mainly D-glucose unit through β (1→4) glycoside The keys are linked together.

CMC is white or milky white fibrous powder or granules, with a density of 0.5-0.7 g/cm3, almost odorless, tasteless, and hygroscopic. Easily dispersed in water to form a transparent colloidal solution, insoluble in organic solvents such as ethanol. The pH of 1% aqueous solution is 6.5-8.5, when the pH>10 or <5, the viscosity of the glue will decrease significantly, and the performance is the best when the pH=7. Stable to heat, the viscosity rises rapidly below 20°C, and changes slowly at 45°C. Long-term heating above 80°C can denature the colloid and significantly reduce the viscosity and performance. It is easily soluble in water, and the solution is transparent; it is very stable in alkaline solution, but it is easily hydrolyzed when it encounters acid. When the pH value is 2-3, it will precipitate, and it will also react with multivalent metal salts.