Sodium salt

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SODIUM TRIPOLYPHOSPHATE(STPP)

Guaranteed Technical Specifications

Byname: Pentasodium phosphate
Chemical formula: Na5P3O10
Standard Executed: GB/T9983-2004(INDUSTRIAL GRADE)GB25566-2010(FOOD GRADE)
Throughput: 50000 t/a

Properties

White microdot powder with luster, melting point at 622℃, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, alkalescent, without causticity.

Uses

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 and storage

plastic-woven sack with polythene inner bag, net weight 25kg, 50kg or 1000kg; keep away from water or moisture, do not pile up the open air. 

  • Other Parameters
指標名稱 Specifications
工業級 Industrial Grade
食品級 Food Grade
主含量 (Na5P3O10 )%≥ Main contents
90.0  
85.00
五氧化二磷(P2O5)   %≥ Phosphorus pentoxide
56.5  
56.0-58.0
水不溶物      %≤ Water insoluble
0.15  
0.10
鐵      %≤ Fe
0.03 
0.015
PH值(1%水溶物) PH value of 1% solution
9.2-10.0  
9.4-10.0
重金屬(以Pb 計)%≤ Heavy metals, as Pb
/
0.001
 
砷(以As計)     %≤ Arsenic,as As
 
/
0.0003
氟化物(以F計)      %≤ Fluoride, as F
/  
0.003
白度     %≥ Whiteness
85  
85  
??
Pre:TETRA SODIUM PYROPHOSPHATE (TSPP) Next: SODIUM ACID PYROPHOSPHATE (SAPP)
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