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Merck 101180 Ammonium heptamolybdate tetrahydrate (ammonium molybdate) cryst. extra pure 250 gr

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Marka
Merck
Stok Kodu
M.101180.0250 
Merck 101180 Ammonium heptamolybdate tetrahydrate  (ammonium molybdate) cryst. extra pure 250 gr
Catalogue Number 101180
Synonyms Ammonium molybdate, Hexammonium heptamolybdate 4-hydrate
Merck 101180 Ammonium heptamolybdate tetrahydrate (ammonium molybdate) cryst. extra pure 1 kg
Product Information 
CAS number 12054-85-2
EC number 234-722-4
Hill Formula H₂₄Mo₇N₆O₂₄ * 4 H₂O
Chemical formula (NH₄)₆Mo₇O₂₄ * 4 H₂O
Molar Mass 1235.86 g/mol
HS Code 2841 70 00

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 (20 °C)

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 
Specifications
Assay (precipitative titration) 99.3 – 101.8 %
Identity passes test
Insoluble substances ≤ 0.005 %
Chloride (Cl) ≤ 0.002 %
Nitrate (NO₃) passes test
Phosphate (PO₄) ≤ 0.0005 %
Phosphate, Arsenate, Silicate (as PO₄) passes test
Sulphate (SO₄) ≤ 0.02 %
Heavy metals (as Pb) ≤ 0.001 %
K (Potassium) ≤ 0.005 %
Mg (Magnesium) ≤ 0.005 %
Na (Sodium) ≤ 0.005 %
Magnesium and alcali salts ≤ 0.02 %

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