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Food additive sodium tripolyphosphate(STPP)
Food additive sodium hexametaphosphate(SHMP)
Food additive Sodium pyrophosphate(TSPP) anhydrous
Food additive Sodium Acid Pyrophosphate(SAPP)
Food additive Tetrapotassium Pyrophosphate(TKPP)
Food additive Monopotassium Phosphate(MKP)
Food additive Tripotassium Phosphate(TKP)
Food additive trisodium phosphate
Food additive sodium hydrogen phosphate
Electronic grade sodium dihydrogen phosphate/Mono Sodium Phosphate
n-Hexane (Chromatographic grade)
Trichloromethane (Chromatographic grade)
Toluene (Chromatographic grade)
n-Hexane (for residue analysis)
Trichloromethane (for residue analysis)
Electronic grade Ammonium Sulfate
Electronic grade Phosphoric acid
English name: Phosphorus pentoxide for industrial use
Molecular
formula: P2O5
Relative
molecular mass: 141.943
(according to 2016 international relative atomic mass)
Appearance: white powder, easy to deliquesce.
According to the test method
specified in this standard, the industrial grade phosphorus pentoxide shall
meet the requirements of Table 1.
Item | index | ||
Superior | First-class | Qualified | |
（P2O5）w/% ≥ | 99.0 | 98.5 | 98.0 |
Clarity degree | Pass the test | Pass the test | Pass the test |
Water insoluble w /% ≤ | 0.01 | 0.01 | 0.02 |
Reducing substance (calculated by P2O3) w /% ≤ | 0.005 | 0.01 | 0.02 |
Total nitrogen (in N) w /% ≤ | 0.002 | 0.005 | 0.01 |
Heavy metal (in Pb) w /% ≤ | 0.002 | 0.002 | 0.005 |
Iron (Fe) w /% ≤ | 0.001 | 0.005 | 0.01 |
Arsenic (As) w /% ≤ | 0.003 | 0.006 | 0.01 |
