Sodium Tripolyphosphate (STPP)
CAS No. :7758 -29-4.
Molecular formula:Na5P3O10
Molecular Weight: 367.86
melting point 622°C;
Standard executed : GB/T9983- 2004;QB1034-91
Specification: Tech. grade
Main content Na5P3O10 95%min
P2O5: 56.5%min
Water Insoluble: 0.1%max
Fe: 0.015%max
PH Value PH: 8.0-10.0
Whiteness: 90% min.
Phase I 10 30%
Bulk Density 0.8 0.95g/cm3
Loss on ignition 1% max
Description: white powder; easily soluble in water;
Uses: the main auxiliary for synthetic detergent, synergist for soap; water softener, etc.
Packing: 25kg/1,000kg woven bag with PE liner. 24MTs/ 20FCL.
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