Sodio fosfato bibasico dodecaidrato 98.5% per analisi
Fornitore: Thermo Fisher Scientific
Synonyms:
sec-Sodium phosphate, Sodium hydrogen phosphate dodecahydrate, Disodium phosphate, Dibasic sodium phosphate dodecahydrate, Sodium phosphate dibasic dodecahydrate, di-Sodium hydrogen phosphate dodecahydrate, Sodium monohydrogen phosphate dodecahydrate, di-Sodium hydrogen orthophosphate dodecahydrate
Formula:
Na₂HPO₄·12H₂O Peso molecolare: 358.14 g/mol Punto di fusione: 35 °C Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00149181 CAS Number: 10039-32-4 EINECS: 231-448-7 Merck Index: 13,08733 |
Risultati del test di specificazione
Appearance | White Crystals |
pH | 9 to 9.4 (5 % in water) |
Titration with HCl | 98.0 to 102.0 % |
Chloride (Cl) | ≤5 ppm |
Sulfate (SO4) | ≤50 ppm |
Arsenic (As) | ≤0.5 ppm |
Cadmium (Cd) | ≤5 ppm |
Calcium (Ca) | ≤10 ppm |
Chromium (Cr) | ≤5 ppm |
Cobalt (Co) | ≤5 ppm |
Copper (Cu) | ≤5 ppm |
Iron (Fe) | ≤5 ppm |
Lead (Pb) | ≤5 ppm |
Magnesium (Mg) | ≤10 ppm |
Manganese (Mn) | ≤5 ppm |
Nickel (Ni) | ≤5 ppm |
Potassium (K) | ≤100 ppm |
Zinc (Zn) | ≤5 ppm |
Heavy metals (as Pb) | ≤5 ppm |
Impurity | Mono- or tribasic salts: passes test |
Insoluble matter | ≤0.005 % (in water) |
Nitrogen compounds (as N) | ≤0.001 % |
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