Lightweight Sodium Tripolyphosphate, Industrial Grade, Food Grade, Improver, Water Retaining Agent, Meat Product Pickling Agent for Weight Gain, Water Retention Agent, for Washing, Refractory Materials, Ore Dressing, and Water Treatment
Chemical Name: Sodium Tripolyphosphate
Alias: Sodium Pentaphosphate; Sodium Pyrophosphate; STPP; Sodium Tripolyphosphate
Chemical Formula: Na5P3O10
CAS NO.: 7758-29-4
Implementation Standard: GB1886.335-2021
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Properties
White powder or fine particles, easily soluble in water, and its aqueous solution is alkaline.
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Packaging
The regular packaging is 25KG bags, with double plastic inner bags and plastic woven outer bags. It can also be packed in 1000/1100/1200KG ton bags.
Customized packaging and shipping marks are available.
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Specifications
| Serial Number | Indicator Name | National Standard | Internal Control Indicator |
| 1 | Appearance | White powder or granules | |
| 2 | Main Content (calculated as Na5P3O10) %≥ | 95.0 | 95 |
| 3 | Phosphorus Pentoxide %≥ | 57.0 | 57 |
| 4 | Water-insoluble Matter %≤ | 0.05 | 0.02 |
| 5 | Iron (Fe) %≤ | 0.01 | 0.001 |
| 6 | pH value (1% water-soluble substance) | 9.4-10.0 | |
| 7 | Heavy metals (calculated as Pb) %≤ | 0.001 | 0.0008 |
| 8 | Arsenic (calculated as As) %≤ | 0.0003 | 0.0003 |
| 9 | Fluoride (calculated as F) %≤ | 0.003 | 0.001 |
| 10 | Particle size: ordinary powder Amount passing through a 16-mesh sieve %≥ Amount passing through a 35-mesh sieve %≥ Amount passing through a 100-mesh sieve %≥ Amount passing through a 100-mesh sieve for fine powder %≥ |
95.0 90.0 40.0 90.0 |
95.0 90.0 40.0 90.0 |
| 11 | Whiteness %≥ | 90.0 | 90.0 |
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