Hydrogenfosforečnan dvojsodný dodekahydrát 98.5-102.5% (by acidimetry), crystals, EMSURE® Ph. Eur., BP, JP, USP, Supelco®
Dodavatel: Merck
M-Clarity™ quality level = MQ300
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Hydrogenfosforečnan dvojsodný dodekahydrát 98.5-102.5% (by acidimetry), crystals, EMSURE® Ph. Eur., BP, JP, USP, Supelco®
Hydrogenfosforečnan dvojsodný dodekahydrát
Vzorec:
Na₂HPO₄·12H₂O Bod tání: 35 °C Hustota: 1,52 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00149181 CAS číslo: 10039-32-4 EINECS: 231-448-7 Merck Index: 13,08733 |
Výsledky specifikačního testu
Assay (alkalimetric) | 99.0 - 102.0 % |
Identity | passes test |
Appearance of solution | passes test |
Sodium Dihydrogene phospate | ≤ 2.5 % |
pH-value (5 %; water) | 9.0 - 9.3 |
Chloride (Cl) | ≤ 0.0005 % |
Sulfate (SO₄) | ≤ 0.005 % |
Total nitrogen (N) | ≤ 0.001 % |
Heavy metals (as Pb) | ≤ 0.0005 % |
As (Arsenic) | ≤ 0.00005 % |
Cu (Copper) | ≤ 0.0002 % |
Fe (Iron) | ≤ 0.0005 % |
K (Potassium) | ≤ 0.005 % |
Pb (Lead) | ≤ 0.0005 % |
Reducing substances | passes test |
Loss on drying (130 °C) | 57.0 - 61.0 % |
Corresponds to ISO,Reag. Ph Eur | passes test |
Water (according to Karl Fischer) | 57.0 - 61.0 % |
Corresponds to Ph Eur, BP, USP, JP |
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