SodiumTri polyphosphate(STPP)
Type:Phosphates
CAS No:7758-29-4
Qty in 20′ FCL:25MT
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| ITEM | STANDARD |
| ASSAY (%) (Na5P3O10) | 95 MIN |
| APPEARANCE | WHITE GRANULAR |
| P2O5 (%) | 57.0 MIN |
| FLUORIDE (PPM) | 10MAX |
| CADMIUM (PPM) | 1 MAX |
| LEAD (PPM) | 4 MAX |
| MERCURY (PPM) | 1 MAX |
| ARSENIC (PPM) | 3 MAX |
| HEAVY MENTAL (AS PB) (PPM) | 10 MAX |
| CHLORIDES (AS CL) (%) | 0.025 MAX |
| SULPHATES (SO42-) (%) | 0.4 MAX |
| SUBSTANCES NOT DISSOLVED IN WATER (%) | 0.05 MAX |
| PH VALUE (%) | 9.5 – 10.0 |
| LOSS ON DRYING | 0.7% MAX |
| HEXAHYDRATE | 23.5% MAX |
| WATER-INSOLUBLE SUBSTANCES | 0.1% MAX |
| HIGHER POLYPHOSPHATES | 1% MAX |
- Specificaiton
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ITEM STANDARD ASSAY (%) (Na5P3O10) 95 MIN APPEARANCE WHITE GRANULAR P2O5 (%) 57.0 MIN FLUORIDE (PPM) 10MAX CADMIUM (PPM) 1 MAX LEAD (PPM) 4 MAX MERCURY (PPM) 1 MAX ARSENIC (PPM) 3 MAX HEAVY MENTAL (AS PB) (PPM) 10 MAX CHLORIDES (AS CL) (%) 0.025 MAX SULPHATES (SO42-) (%) 0.4 MAX SUBSTANCES NOT DISSOLVED IN WATER (%) 0.05 MAX PH VALUE (%) 9.5 – 10.0 LOSS ON DRYING 0.7% MAX HEXAHYDRATE 23.5% MAX WATER-INSOLUBLE SUBSTANCES 0.1% MAX HIGHER POLYPHOSPHATES 1% MAX