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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: Disodium hydrogen phosphate
Molecular formula: Na2HPO4·12H2O
Property: Colorless monoclini crystal or white powder. Relative density 1.52, melting point 34.6℃, refractive rate 1.432 (20℃). Soluble in water, the aqueous solution is alkali, PH value of 1% aqueous solution is 8.8-9.2; insoluble in alcohol. Weathering in the air. Lose all the water of crystallization and turn to sodium pyrophosphate anhydrousif heated to 250℃.
Packing instruction: PP-PE bag, Net weight 25kg or based on the customers' requirements.
Executive standard: HG/T 2965-2009
Quality standard:
Item | Index |
sodium hydrogen phosphate (以Na2HPO4·12H2O计),w/% ≥ | 97.0 |
Sulfate (Calculated by SO4),w/% ≤ | 0.7 |
Chloride (Calculated by Cl),w/% ≤ | 0.05 |
Arsenic (As),w/% ≤ | 0.005 |
Fluoride (Calculated by F),w/% ≤ | 0.05 |
Fe,w/% ≤ | 0.05 |
Water insoluble matter,w/% ≤ | 0.05 |
PH value (10g/L solution) | 9.0±0.2 |
Usage: Used as fire-proofing agent for fabric, wood and paper, as glaze, welding flux and used in electroplating, etc.
Properation: Prepared by sodium carbonate and phosphoric acid.
Remarks: Weathering in the air, lose water of crystallization and turn to anhydrous substance at 100℃. Decompose to sodium pyrophosphate anhydrous at 250℃.
Transportation and storage: Avoid rain and sunlight during the transporation. Please keep in dry and ventilated place and equipped with under layer to prevent damp.
