|
|
|
|
CAS No.: 7722-88-5
Molecular Formula: Na4P2O7 Molecular Weight: 265.9
Structural Formula:
Property :
SPP is white powder and easily soluble in water with the relative density of 2.45. The melting point of
SPP is 890℃. The water solution of
SPP is alkaline. PH value of 1% SPP water solution is 9.9-10.7.
Specification :
|
Item |
Index |
|
Main Content, %≥ |
96.5 |
|
P2O5, %≥ |
51.5 |
|
Phosphate |
Qualified |
|
pH of 1% SPP Water Solution |
9.9-10.7 |
|
Sieve Test(through 60mesh) , %≥ |
90 |
|
Heavy Metal, as Pb %≤ |
-- |
|
Arsenic, as As, %≤ |
-- |
|
Fluoride, as F, %≤ |
-- |
|
Water Insoluble , %≤ |
0.2 |
Use:
SPP is mainly used as detergent in washing, bleach in paper-making.
SPP could also be used in electroplating.
Packing and storage:
SPP is packed in plastic-woven sack with PE inner bag with net weight of 25kg, 50kg or 1000kg.
SPP is stored in ventilated and dry place.
Keywords:
Sodium Pyrophosphate; Tetrasodium Pyrophosphate; Diphosphoric Acid Tetrasodium Salt; Pyrophosphoric Acid Tetrasodium Salt; Sodium Diphosphate; SPP
|
|
