Tri-Sodium Phosphate

Chemical formula:Na3PO4
CAS Number:7601-54-9
Standard executed:HG/T 2517-1993(Tech Grade) National standard(Food Grade)
Packing and storage:In 25kg,50kg,1000kg net bags,store at a cool,dry and well ventilated place.
Properties:
White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. PH value of 1% solution is 12.1, relative density at 1.62g/cm3, melting point is 73.4 ýæ.
Uses:Used as a water softening agent,cleaning agent in electroplating,color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
Specifications:
1.Tech Grade:
Appearance:White Powder
Main content:98% min
Phosphorus pentoxide:39.5% min
Sodium oxide,as Na2O:36-40
Sulfate,as SO4:0.5% max
PH value of 1% solution:11.5-12.1
Water insoluble:0.1% max
2.Food Grade:
AppearanceÿºWhite powder
Main contentÿº98% min
Phosphorus pentoxideÿº39.5% min
Sodium oxide,as Na2O: 36-40
Sulfate,as SO4:0.25% max
PH value of 1% solution:11.5-12.1
Heavy metals:10ppm max
Fluoride:50ppm max
Arsenic:3ppm max
Water insoluble:0.1% max
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