الوصف

Sodium Tripolyphosphate (STPP)

1.Chemical and Physical Properties:

Molecular Formula: Na5P3O*0
Molecular Weight : **7.*6
CAS NO.: ********4
EINECS NO.:  ********9
H.S Code: *********0.
White microdot powder with luster,density:0.***0.9g/cm 3  melting point at **2 °C,easily soluble in water, with remarkable chelating ability to some metal ions such as Ca 2+, Mg 2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.

2)Usage:

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. 

3)Specifications:

GB/T********4(technical grade), QB******1(food grade)

Specifications
 Industrial Grade
 Food Grade
 
AssayNa5P3O*0 % ≥
 *4.0
 *5.0
 
P2O5 % ≥
 *7.0
 *7.0
 
Water Insoluble Matter %≤
 0.1
 0.*5
 
Iron(Fe) %≤
 0.*1
 0.*1
 
PH value(1%water solution)
 9.***0.0
 9.***0.0
 
Heavy Metal (as Pb) %≤
 /
 0.**1
 
Arsenic (As) %≤
 /
 0.***3
 
Fluoride (F) %≤
 /
 0.**3
 
Whiteness %≥
 *0.0
 *0.0
 
Density:
 0.***0.9g/cm 3
 0.***0.9g/cm 3

 4)Packing Details:

The goods will be packed in Net weight *5kgs, *0kgs or ***0kgs plastic-woven sack with polythene inner bag; 
*0MT**4MT will be loaded in 1**0'fcl container.

5)Storage:

Store at a cool, dry and well ventilated place.