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Confirms to USP
Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate


100 g (00100)

500 g (00500)

1000 g (01000)

25 Kg (0025K)

1PW1200060 1PW1200400 1PW1200750 1PDL00030K
Article No. 01271 Grade AR/ACS
Purity 99.3% CAS No. 12054-85-2
Molecular Formula (NH4)6Mo7O24.4H2O Molecular Weight 1235.86
H.S. Code 2841.7090 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White crystalline
Odour Odorless pH value 5 - 5.5
Melting point/ Freezing point [°C] 90°C Boiling point [°C] 190°C
Density [g/cm3] 2.498 Solubility in water [% weight] 43 g / 100 cc cold water


Appearance White crystalline powder Assay 99.3-101.8%
Assay (as MoO3) 81 - 83% Identity To pass as per USP
Insoluble matter Max 0.005% Chloride (Cl) Max 0.002%
Arsenate, phosphate, silicate ( PO4) Max 0.001% Nitrate (NO3) Passes test (about 0.003%)
Phosphate (PO4) Max 0.0005% Heavy metals (by ICP-OES) Max 0.001%
Magnesium (Mg) Max 0.005% Sodium (Na) Max 0.01%
Potassium (K) Max 0.01% Sulphate (SO4) Max 0.02%
Magnesium & alkali salts Max 0.02%

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
Revision Date: 14-Mar-2022

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