Sodium Hexametaphosphate
Product Description: Sodium Hexametaphosphate provided by Hongtai has the best quality and competitive price. It has the features including anhydrous, dodecahydryte and water soluble.We specialized in this field for decades, with high quality and pretty competitive price.
Molecular formula: NaH2PO4.2H2O
Molecular weight: 156.01
Technical Parameter:
Molecular formula: NaH2PO4.2H2O
Molecular weight: 156.01
Technical Parameter:
|
Classification
|
Phosphate
|
|
Type
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Sodium Hexametaphosphate
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|
CAS No.
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7588-79-4
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|
Other Names
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HYDROGEN ORTHOPHOSPHATE DIBASIC
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|
MF
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HNA2O4P
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EINECS No.
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1099-52
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Place of Origin
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China (Mainland)
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Grade Standard
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Food Grade, Industrial Grade
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Purity
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98%
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Appearance
|
powder
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Application
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fire retardant
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Brand Name
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HT
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Model Number
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HTlS008
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appearance
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powder or fine granular
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|
Na2OHPO4
|
98%
|
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arsenic
|
0.003%max
|
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Fluoride
|
0.05%max
|
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Insoluble substances
|
0.05%max
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|
CL contents
|
0.04%max
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SO4 contents
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0.6%max
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Properties:The product can be soluble in water but insoluble in ethanal. Its aqueous solution shows acidity and easy to agglomerate in the watery air. It appears colorless oblique square crystal, relative density is 1.91 and the melting point is 60 centigrade. It becomes sodium dihydrogen phosphate anhydrous at 95 centigrade, sodium pyrophosphate anhydrous at 190-204 centigrade and sodium metaphosphate at 204 –244 centigrade.
Specification :( Reference Standard)
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Items
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Unit
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Standard
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|
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Technical Grade
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Food Grade
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||
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NaH2PO4.2H2O
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%≥
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98.00
|
98.00
|
|
P2O5
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%≥
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44.60
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44.60
|
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Methyl orange basicity(Na2O)
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%≥
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18.8-21.0
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19.40
|
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pH(1% solution)
|
--
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4.2--4.6
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|
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Chlorid (Cl-)
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%≤
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0.4
|
0.014
|
|
Fe
|
%≤
|
0.10
|
0.05
|
|
As
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%≤
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0.005
|
0.0005
|
|
Heavy metal (Pb)
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%≤
|
0.005
|
0.002
|
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Fluorid (F)
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%≤
|
--
|
0.005
|
|
Sulfate (SO42-)
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%≤
|
0.5
|
0.25
|
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Water insolubles
|
%≤
|
0.1
|
0.1
|
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