Model: CAS: 9004-32-4
(A) carboxymethyl cellulose production process
(B) Reaction Mechanism carboxymethylcellulose
Theoretically finished CMC can be written as:
Cellulose formula formula: Jane as C6H7O2 (OH) 3
C6H7O2 (OH) 3 + XNaOH → C6H7O2 (OH) 3 · XNaOH
C6H7O2 (OH) 3 · XNaOH + mCH2ClCOONa →
C6H7O2 (OH) 3-m · (OCH3COONa) m · (x-m) NaOH + mNaCl + mH2O
CMC is a natural hydrophilic substances, CMC are dispersed in water, will swell and dissolve.
1, slowly add CMC with stirring to accelerate the dissolution;
2, Heating can increase the dissolution rate, but the temperature is not too high, suitably 50 ° C-60 ° C;
3, when used in combination with other materials, the first for a solid mix, then the dissolution rate may increase;
4, the addition of an immiscible with CMC and water-miscible, but can be an organic solvent such as ethanol, glycerol, etc.,
and then the dissolution rate will be fast.
(D) packaging, storage
1, PP bag lined with plastic bags; or using kraft paper bag lined with plastic bag, net weight 25kg;
2, CMC is easy to absorb water, should be avoided during storage bag breakage and should be stored in a dry place.