Calcium tungstate CAS#7790-75-2

CAS Number: 7790-75-2
Chemical Formula: CaO4W
Synonyms:

calcium wolframate
ALCIUM TUNGSTEN OXIDE
CALCIUM TUNGSTATE(VI)

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Calcium tungstate CAS#7790-75-2

Calcium tungstate (CaWO4) is an optical material, which can be used as a laser host material for a variety of electronic applications. It has a scheelite structure with luminescence, and thermo-luminescence properties.

Calcium tungstate Chemical Properties

Melting point	1620°C
density	6.06 g/mL at 25 °C (lit.)
storage temp.	-20°C
solubility	Insoluble in H{2}O. Decomposes by hot HCl, HNO{3}
form	Powder
color	white
Specific Gravity	6.062
biological source	rabbit
Water Solubility	insoluble H2O; decomposed by hot HCl, HNO3 [MER06]
Merck	14,1712
Solubility Product Constant (Ksp)	pKsp: 8.06
Exposure limits	ACGIH: TWA 3 mg/m3 NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
InChI	1S/Ca.4O.W/q+2;;;2*-1;
InChIKey	FDMFQOCGNBYKPY-UHFFFAOYSA-N
SMILES	[Ca++].[O-][W]([O-])(=O)=O
CAS DataBase Reference	7790-75-2(CAS DataBase Reference)
EPA Substance Registry System	Calcium tungsten oxide (CaWO4) (7790-75-2)

Safety Information

WGK Germany	3
TSCA	TSCA listed
HS Code	28418030
Storage Class	11 - Combustible Solids

Product Application of Calcium tungstate CAS#7790-75-2

Calcium tungstate is well known as the phosphor that emits light in λ: 310–700 nm under the excitation light in λ: 220–300 nm. The peak wavelength is positioned at 440 nm, causing it to give off a blue color.

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