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Ammonium heptamolybdate tetrahydrate

Ammonium heptamolybdate tetrahydrate

Product Details:


Product Description

LC236 Ammonium heptamolybdate tetrahydrate
GR for analysis ACS,ISO,Reag. Ph Eur


Order number Packaging Quantity Price
AC27236 Plastic bottle 250 g 77.85
AC27236 Plastic bottle 1 kg 255.6
AC27236 Plastic bottle 5 kg 988.2
AC27236 Plastic bottle 25 kg Inquire


Product information
Grade ACS,ISO,Reag. Ph Eur
Synonyms Ammonium molybdate, Hexammonium heptamolybdate 4-hydrate
Hill Formula H24Mo7N6O24 * 4 H2O
Chemical formula (NH4)6Mo7O24 * 4 H2O
HS Code 2841 70 00
EC number 234-722-4
Molar mass 1235.86 g/mol
CAS number 12054-85-2


Chemical and physical data
Solubility 400 g/l (20 C)
Melting point 90 C Elimination of water of crystallisation
Molar mass 1235.86 g/mol
Density 2.498 g/cm3 (20 C)
Bulk density 800 kg/m3
pH value 5.3 (50 g/l, H2O, 20 C)


Safety information
RTECS QA5076000
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly water endangering

Heavy metal-containing solutions and solids: container E. Stir Raney nickel (also: Urushibara nickel) in the form of an aqueous suspension into hydrochloric acid (Cat. No. 100312) until dissolved (container E). Neither Raney nickel itself nor any filter residues should be allowed to dry out, otherwise they will spontaneously ignite in air. In this context, heavy metal means any compound of antimony, arsenic, cadmium, chromium(VI), copper, lead, nickel and tin, as well as these subtances in metallic form, if they are classified as hazardous (acc. to AbfallverzeichnisV - Waste Catalogue Ordinance, Appendix 3). Other heavy metals should be collected separately.


Transport information
LD 50 oral No Dangerous Good
LD 50 dermal No Dangerous Good


- as MoO3

81.0 - 83.0 %
- (NH4)6Mo7O24 x 4 H2O  99.0 %
Insoluble matter  0.005 %
Chloride (Cl)  0.0005 %
Nitrate (NO3) passes test
Phosphate (PO4)  0.0005 %
Phosphate, Arsenate, Silicate (as PO4)  0.0005 %
Sulphate (SO4)  0.005 %
Heavy metals (as Pb)  0.001 %
Cu (Copper)  0.001 %
Fe (Iron)  0.0005 %
Mg (Magnesium)  0.005 %
K (Potassium)  0.002 %
Na (Sodium)  0.01 %
Pb (Lead)  0.001 %
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