STPP Sodium tripolyphosphate pentasodium phosphate Na5P3O10

Sodium tripolyphosphate (STPP) Synonyms: Five sodium phosphate chemical formula: Na5P3O10 molecular weight: 367.86 Executive Standard: GB / T9983-2004 (industrial grade) QB1034-91 (food grade) purposes: for the main synthetic detergent additives, soap effective dispersant paint, kaolin, magnesium oxide, calcium carbonate drilling mud and other suspension processing;; synergist, leather tanning agent to soft industrial water and paper as an anti-oil agent; the food industry for canned , fruit drinks, dairy products, soy milk and other quality improver, the main tender for the canned ham, canned beans soften Yuba manipulation can also be used as softeners and thickeners. Packaging and storage: plastic woven bags, paper bags, net weight 25,50,1000Kg, stored in a dry place. Technical Specifications No. Specifications Industrial Grade Food Grade 1 Main contents (as Na5P3O10 dollars)% ≥ 94.0 94.0 2 pentoxide% ≥ 57.0 57.0 3 Water insoluble% ≤ 0.15 0.05 4 iron (Fe)% ≤ 0.01 0.01 5 PH value (1% aqueous composition) 9.2-10.0 9.5-10.0 6 heavy metals (Pb)% ≤ 0.001 7 arsenic (As)% ≤ 0.0003 8 fluoride (as F)% ≤ 0.003 9 through 16 mesh size ordinary powder Sieve amount% ≥ 35% ≥ 100 mesh sieve amount amount% ≥ fine mesh sieve 100 mesh sieve amount% ≥ 95.0 90.0 40.0 90.0 95.0 90.0 40.0 90.0 10 Whiteness% ≥ 90.0 90.0