Code name: Cmc
Molecular formula: [c6h7o2(oh)2och2coona]
*main physical & chemical features
*sodium carboxymethyl celluose(cmc-na)is a anion type linear macromole substances. Features of pure substance: White or ivory, insipidity, innocuity, fluidity, fibrous powder, freely soluble in cold or hot water to form transparent sticky solution, unique function.
*cmc inspection & test approach
*authentication
*place 2g sample in 10ml warming distilled water, mixed completely, agitate the solution to colloid, cool down.
*a)30ml sample of test solution, add 3ml muriatic acid, white deposition.
*b)50ml sample of test solution, add 10ml copper sulphate test, fluey light blue deposition
*c)use muriatic acid wet platinum filament, burn it on achromatic blaze to achromaticity, dip in the test solution, burn it on achromatic blaze, the blaze become bight yellow.
*viscositym, degree of substitution, sodium content, ph value, chloridate, sodium chloride, drying decrement, heavy metal (pb), fe, as complied with gb1904-89.
*purity, drilling fluid complied with sy5093-92.
*total number of bacteio complied with gb7918.2.
*degree of etherification complied with gb12028-89 or q/lh1-2001.
*degree of acid viscidity complied with q/lh1-2001.