Sodium Tripolyphosphate(STPP)

Strong products

Chemical Name: Sodium Tripolyphosphate

Formula: Na₅P₃O₁₀

Properties: White microdot powder with luster, melting point at 622ｰC, easily soluble in water, withre markable chelating ability to some metal ions such as Ca2+ ,Mg2+ ,can soften hard water, changesuspension into solution, alkalescent, without causticity.

Specifications:

Name of index		FCC
Main contents	≥%	95.0
P₂O₅	≥%	57.0
Fe	≤%	0.01
PH of 1% water solution		9.5-10.0
Chloride, as Cl	≤%	0.025
Heavy metals,	≤%	0.001
Pb	≤%	0.0001
Arsenic, as As	≤%	0.0001
Fluoride asF	≤%	0.003
Water insoluble	≤%	0.05

Application: Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product,gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis,foodstuff industry, and poultry process.

Packing: 25kgs net paper or plastic woven bags.

Storage and Transport: It should be stored in a ventilative and dry warehouse instead of in theopenair,kept away from water, moisture and sunlight during transport, handled with care, so as toavoid damage toplastic bags. Furthermore, it should be stored separately from poisonous substances.

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