Customization: | Available |
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CAS No.: | 7758-23-8 |
Formula: | Ca (H2po4)2.H2O |
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INDEXES | GB1886.333-2021 | FCC-V | E 341 (i) |
Assay,% | 16.8-18.3(as Ca) | 16.8-18.3(as Ca) | ≥95(on the dried basis ) |
P2O5(on the anhydrous basis),% | - | - | 55.5-61.1 |
Identification | - | - | Positive tests for calcium and for phosphate |
Pb, ≤% | 0.0002 | 0.0002 | 0.0001 |
As, ≤% | 0.0003 | 0.0003 | 0.0001 |
Cadmium , ≤% | - | - | 0.0001 |
Mercury , ≤% | - | - | 0.0001 |
Aluminium,≤ mg/kg | - | - | 200 |
Heavy metals(As Pb), ≤% | 0.001 | - | - |
Fluoride, ≤% | 0.0025 | 0.005 | 0.003 |
Residue on ignition, % | 14.0-15.5 | 14.0-15.5 | ≤ 17,5 %(800 °C ± 25 °C, 30 minutes) |
Loss on drying | - | - | ≤14 % (105 °C, 4 hours) |
Clear grade | Accord with the test | - | - |
Carbonate | Accord with the test | - | - |
Free acid and auxiliary salt | Accord with the test | - | - |