|
|
 Crystal sodium polyphosphate
| Technical index: |
|
Item
|
Index
|
Standard
|
|
Appearance
|
white powder or crystal
|
GB/T 9006-88
|
|
PH value(20°C)(1% water solution)
|
9.9-10.7
|
|
Water insolubles % ≤
|
0.1
|
|
Sodium pyrophosphate content%≥
|
97.5
|
|
Potassium orthophosphate
|
No obvious yellow
|
|
| Property: |
| It is lusterous and colorless needle-like monoclinic crystal, soluble in water, water solution is of alkalescence. |
| Use: |
(1)As complexing agent, in ABS polymerization system.
(2)As buffer of PH value.
(3)As auxiliary of detergent or as water-treatment agent. |
| Packing & storage: |
| In woven bag lined with polyethylene film, 25kg/bag; stored in airy and dry warehouse, avoid high temperature, solarization and rain, useful life is one year. |
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