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Sodium tripolyphosphate(STPP)CAS: 7758-29-4

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Quick Details
Synonyms: Armofos;Natriumtripolyphosphat;Pentasodium triphosphate;Pentasodium tripolyphosphate;Polygon;Sodium triphosphate; Classification: Phosphate
EINECS: 231-838-7 Molecular Formula: Na5P3O10
Melting Point: 622℃ Boiling Point:
Stability: Stable. Incompatible with strong oxidizing agents, strong acids. Hygroscopic. Water Solubility: 20 g/100 mL (20℃)
Refractive index: Flash Point:
Purity: 94% min Appearance: White powder
HazardClass: Brand Name:
Packaging & Delivery
Packaging Detail: 25 kg, 50Kg , 1000g plastic woven bag
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Detailed Description

Sodium Tripolyphosphate / STPP   CAS NO: 7758-29-4

MF: Na5P3O10

Industrial Grade  and food grade

Appearance: White powder

Application: Used in detegent, soap, leather ma...

1. Industrial grade
Main content, %; 94.0
P2O5%≥ 57.0
Water insoluble %; 0.1
Iron, as Fe %; 0.015
pH of 1% water solution 9.2-10.0

2. Food grade
Main content, %: 94.0
P2O5%; 57.0
Water insoluble %; 0.05
Iron, as Fe %; 0.01
pH of 1% water solution 9.5-10.0
Heavy metal, as Pb %; 0.001
Arsenic, as As, %; 0.0003
Fluoride, as F, %; 0.003
Chloride, as Cl %; 0.025


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