Food additive?sodium polyacrylate,Name: sodium polyacrylate,Abbreviation: PAA(S) NaPPA,Molecular Formula: -[-CH2CHCOONa-]-QI?item indexappearance white powderFree alkali Not react with phenolphthalinsulfateUlfate?SO4)?0.5%Loss of drying?10%Residue on ignition?76%heavy metal?Pb??0.002%Arsenic?As2O3??0.0002%Residual monomers ?1%Low polymer?5% Sodium Polyacrylate is a kind of high molecular compound with hydrophilic group. It appears odorless and tasteless white powder. It will form transparent solution of great viscosity while slowly dissolved into water. The viscosity of 0.5% solution is about 1000cp. The viscosity is engendered by the dissociation of numerous anions and hence causes the growth of molecular chain not by expansion of water absorption that normally happens to CMC and sodium alginate. The viscidity is about 15-20 times higher than carboxymethyl cellulose sodium and sodium alginate, carrageenen,Geltin etc. It shows high alkali-resistant, minor change in viscosity after longtime storage, and not easily decaying. This product is a kind of food additive which ratified by FDA, Japanese Ministry of Health, Chinese Ministry of Health, used in a variety of food for thickening, gluten, stability, and preservation, the general dosage is 0.2%.
