Product

AMMONIUM METATUNGSTATE

CAS No.：12028-48-7

Other grades of this product :

AMMONIUM METATUNGSTATE Basic information

Product Name:	AMMONIUM METATUNGSTATE
Synonyms:	AMMONIUM TUNGSTATE, META;AMMONIUM TUNGSTEN OXIDE;AMMONIUM METATUNGSTATE;Ammoniummetatungstatehydrate(99.9+%-W);TUNGSTATEHEXAAMMONIUM;ammonium metatungstate hexahydrate;hexaammonium wolframate
CAS:	12028-48-7
MF:	H4NO40W12(-5)
MW:	2864.08
EINECS:	234-733-4
Product Categories:	metal tungstate
Mol File:	12028-48-7.mol

AMMONIUM METATUNGSTATE Chemical Properties

Melting point	100 °C (dec.)(lit.)
density	4[at 20℃]
solubility	H₂O: 0.1 g/mL, clear, colorless
form	Powder
color	white
Water Solubility	Soluble in water. Insoluble in alcohol.
CAS DataBase Reference	12028-48-7
EPA Substance Registry System	Tungstate (W12(OH)2O386-), hexaammonium (12028-48-7)

Safety Information

Hazard Codes	Xn
Risk Statements	22-41-52/53
Safety Statements	26-39-60
WGK Germany	2
TSCA	Yes

MSDS Information

Provider	Language
ALFA	English

AMMONIUM METATUNGSTATE Usage And Synthesis

Chemical Properties	white crystal(s); formula also given as (NH4)6H2W12O40 and (NH4)6W12O39 ·4H2O; preparation: reaction of NH4OH with tungstic acid; uses: to prepare tungsten alloys and ammonium phosphotungstate [HAW93] [STR93] [ALD94]
Flammability and Explosibility	Notclassified

AMMONIUM METATUNGSTATE Preparation Products And Raw materials

Raw materials

Nitric acid-->Ammonium paratungstate-->Ammonium citrate tribasic

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