casno. : CAS 9085-26-1
Sodium carboxymethyl cellulose (CMC) is a water-soluble cellulose ether whose solid form is commonly referred to as "sodium cellulose gums" or "cellulose gums". It is produced by the alkali treatment of cellulose from wood pulp and cotton linters, then neutralized with an acid such as acetic acid.
Item | Standard |
Appearance | White to cream colored powder |
Particle Size | Min 95% pass 80 mesh |
Purity(dry basis) | 99% Min |
Viscosity (1% solution, dry basis, 25°C) | 1500- 2000mPa.s |
Degree of substitution | 0.6- 0.9 |
pH (1% solution) | 6.0- 8.5 |
Loss on drying | 10% Max |
Lead | 3 mg/kg Max |
Arsenic | 2 mg/kg Max |
Mercury | 1 mg/kg Max |
Cadmium | 1 mg/kg Max |
Total heavy metals (as Pb) | 10 mg/kg Max |
Yeasts and moulds | 100 cfu/g Max |
Total plate count | 1000 cfu/g |
E.coli | Netative in 5 g |
Salmonella spp. | Netative in 10g |
High viscosity, high degree of substitution and high penetration rate
High stability, less precipitation
Thickener
Sizing agent
Emulsifier
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