Phosphates
Sodium Acid Pyrophosphate
- CAS No:7758-16-9
- Qty in 20' FCL:25MT
- Product description: Sodium Acid Pyrophosphate
White powder or granular;Relative density 1.86g/cm3;Soluble in water and insoluble in ethanol; If its aqueous solution is heated together with diluted inorganic acid, it will be hydrolyzed into Phosphoric Acid; It is hydroscopic, and when absorbing humidity it will become into a product with hexa-hydrates; If it is heated at a temperature above 220℃, it will be decomposed into sodium meta phosphate.
ITEM
STANDARD
Na2H2P2O7
95.0% MIN
APPEARANCE
WHITE POWDER
WATER INSOLUBLE
1.0% MAX
ARSENIC( AS)
3PPM MAX
LOSS ON DRYING
0.5% MAX
CADMIUM (PPM)
1 MAX
LEAD (PPM)
4 MAX
MERCURY (PPM)
1 MAX
HEAVY METAL( PB)
15PPM MAX
FLUORID( PPM)
10 MAX
PH VALUE
3.5-4.5
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