Sodium tripolyphosphate stpp/sodium tripolyphosphate/stpp: Our company polymet commodities ltd., as a specialized manufacturer and trader of sodium tripolyphosphate(stpp) with product capacity 25, 000 tons per year, has won a good reputation for the excellent quality both in the foreign and domestic market. We can supply 2 kinds of sodium tripolyphosphate(stpp): technical grade can be used as auxiliary, ceramics, or used in petroleum, metallurgy, mining, papermaking and water process; food grade can be used as the modifier in the meat, canned meat, beverage, dairy, human care and additive. Our sodium tripolyphosphate(stpp) sells well in the market such as europe, america, southeast asia, australia, africa, etc. Packing: 25kg or 50kg/woven bag lined with pe liner, or 1000 kg/container bag; 20-25mt/20 feet container No. Index technical grade 01 assay na5p3o10 % í² 94.0 02 p2 o 5 % í² 57.0 03 water insoluble matter % ín 0.15 04 iron(fe) % ín 0.015 05 ph value (1% water solution) 9.2-10.0 06 whiteness % í² 90 07 density (g/cm 3 ) 0.70-0.90 08 phase i 10-30 09 particle size(1.00mm) % í² 95 10 appearance white powder In 25kg/50 kg net bag, store at a cool, dry and well ventilated place