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

Applications
Application	Ammonium heptamolybdate tetrahydrate GR for analysis ACS,ISO,Reag. Ph Eur. CAS No. 12054-85-2, EC Number 234-722-4.

Physicochemical Information
Density	2.498 g/cm3 (20 °C)
Melting Point	90 °C Elimination of water of crystallisation
pH value	5.3 (50 g/l, H₂O, 20 °C)
Bulk density	800 kg/m3
Solubility	400 g/l

Safety Information according to GHS
RTECS	QA5076000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly water endangering
Disposal	15 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.

Storage and Shipping Information
Storage	Store at +5°C to +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	No Dangerous Good
Declaration (transport by sea) IMDG-Code	No Dangerous Good

Specifications
Assay (as MoO₃)	81.0 - 83.0 %
Assay ((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 %
Corresponds to ACS,ISO,Reag. Ph Eur

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MERCK 101182 Ammonium heptamolybdate tetrahydrate GR for analysis ACS,ISO,Reag. Ph Eur. CAS No. 12054-85-2, EC Number 234-722-4.

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