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Sodium phosphate

[Name] Sodium phosphate[7601-54-9] 
[Molecular formula] Na3PO4·12H2O
[Molecular weight] 380.12
[UN] HG/T2517-93
[IMDG Code]-
[Product Specifications]

Index Name

Index Name

Excellent Grade 1 Grade 2

Sodium phosphate(as Na3PO4·12H2O)Purity %min

98.5

98.0

95.0

Sulphate(as SO4) %max

0.50

0.50

0.80

Chloride(as Cl) %max

0.30

0.40

0.50

Water-insoluble matter,Purity %max

0.05

0.10

0.30

Methyl Orange basicity(as Na2O)

16.5-19.0

16.0-19.0

15.5-19.0

Iron(as Fe) %max

0.01

-

-

Arsenic(as As) %max

0.005

-

-

[Character] 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°C.
[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.
[Packing] Packing with polythene plastic bag lined with plastic weaven bag. 25kg or 50kg per bag.