Chemical formula:Na4P2O7
CAS Number:7722-88-5
Standard executed:HG/T2968-1999(Tech Grade)HG2923-1999(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 ℃.
Application:
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:96.5% min
Phosphorus pentoxide:51.5% min
Ortho Phosphate:Pass
PH value of 1% solution:9.9-10.7
Water insoluble:0.1% max
2.Food Grade:
Appearance:White Powder
Main content:96.5% min
Phosphorus pentoxide:51.5% min
Ortho Phosphate:Pass
PH value of 1% solution:9.9-10.7
Water insoluble:0.1% max
Heavy metals:10ppm max
Fluoride:5oppm max
Arsenic:3ppm max
Loss on ignition:0.5% max