PRODUCT CODE:

131134

Ammonium Molybdate 4-hydrate (Reag. Ph. Eur.) PA-ACS-ISO

H₂₄Mo₇N₆O₂₄.4H₂O

(NH₄)₆ Mo₇O₂₄.4H₂O

M.= 1235,86	CAS [12054-85-2]	EINECS 234-722-4
NC 2841 70 00

SYNONYMS: Ammonium Molybdat(VI) · Ammonium Heptamolybdate ·
PHYSICAL DATA: White or slightly yellowish or greenish crystalline powder · Solubility in water at 20 ºC 400 g/l · D: 2,498 · Thermal decom. above 150 ºC ·
APPLICATIONS: Analytical reagent: USP 31 · BP 2007 · Ph. Eur. 5.0 · F.C.C. IV · Reagent for the determination of phosphates and silicates ·
BIBLIOGRAPHY: Merck Index 12 , 565 13 , 536 · Safety 2 , 241 D · Römpp 8 , 190 · ACS IX , 152 1 (15-6-2001) X , 163 · ISO 6353/3-1987 R - 65 , 32 · USP 31 ·

HAZARDOUS: RTECS: QA 5076000 ·

R: 22
S: 24

SPECIFICATIONS:

Assay (as MoO₃) (Compl.)	81,0-83,0 %
Minimum assay (Compl.)	99,0 %
MAXIMUM LIMIT OF IMPURITIES
Insoluble matter in H₂O	0,005 %
Chloride (Cl)	0,002 %
Arsenates, phosphates and silicates (as SiO₂)	0,001 %
Phosphate (PO₄)	0,0005 %
Nitrate (NO₃)	0,003 %
Sulphate (SO₄)	0,02 %
Heavy metals (as Pb)	0,001 %
Ca	0,005 %
Cd	0,0005 %
Co	0,0005 %
Cu	0,0005 %
Fe	0,0005 %
K	0,002 %
Mg	0,005 %
Mn	0,0005 %
Na	0,005 %
Ni	0,0005 %
Pb	0,0005 %
Zn	0,0005 %