Ammonio eptamolibdato tetraidrato, Pharmpur®, USP

- Synonyms: Ammonium molybdate, Hexammonium heptamolybdate 4-hydrate
- (NH4)6Mo7O24·4H2O
- M = 1235,86 g/mol
- CAS [12054-85-2]
- EINECS-No.: 234-722-4
- Solub. in water: (20 ºC): 400 g/l
- Melting point: 90 ºC (release of crystalline water)
- LD 50 (oral, rat): 3883 mg/kg
- Tariff number: 2841 70 00 90
- Applications: photography, in porcelain industry, analytical chemistry.

SPECIFICATIONS
assay [(NH4)6Mo7O24·4H2O]: 99,3 - 101,8 %
identification: passes test
insoluble substances: max. 0,005 %
chlorides (Cl): max. 20 ppm
nitrates (NO3): passes test
phosphates, arseniates, silicates (as PO4): max. 10 ppm
phosphates (as PO4): max. 5 ppm
sulfates (SO4): max. 200 ppm
magnesium and alkaline salts: max. 0,02 %