Calcium Tungstate

CaWO₄

IUPAC: Calcium tungstate

CAS: 7790-75-2

Overview

Calcium tungstate (scheelite) is the primary ore mineral for tungsten and fluoresces bright blue-white under UV light. It was used in X-ray intensifying screens.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 4 15.9990
Calcium Ca 1 40.0780
Tungsten W 1 183.8400

Elemental Composition

O
Oxygen ×4
22.2%
Ca
Calcium ×1
13.9%
W
Tungsten ×1
63.8%

Uses

  • • Tungsten ore
  • • X-ray intensifying screen (historical)
  • • UV-fluorescent mineral
  • • Scintillation detector

Fun Facts

  • ✦ Named after Carl Wilhelm Scheele, who discovered tungsten's existence from this mineral in 1781

Properties

Type
salt
State
solid
Molar Mass
287.93 g/mol
Density
6.0620 g/cm³
Melting Point
1620.0 °C
Solubility
insoluble

Related Compounds

Ammonium Bicarbonate

NH₄HCO₃

Ammonium Chloride

NH₄Cl

Ammonium Sulfate

(NH₄)₂SO₄

Barium Carbonate

BaCO₃

Barium Chloride

BaCl₂

Barium Sulfate

BaSO₄

Cadmium Sulfide

CdS

Calcium Acetate

Ca(C₂H₃O₂)₂

Calcium Carbonate

CaCO₃

Calcium Citrate

Ca₃(C₆H₅O₇)₂

Frequently Asked Questions

What is Calcium Tungstate?
Calcium Tungstate (CaWO₄) is a salt compound with the IUPAC name Calcium tungstate.
What is the molecular weight of Calcium Tungstate?
Calcium Tungstate has a molar mass of 287.93 g/mol.
What state is Calcium Tungstate at room temperature?
Calcium Tungstate is a solid at room temperature.
Is Calcium Tungstate organic or inorganic?
Calcium Tungstate is classified as an inorganic compound.
What elements make up Calcium Tungstate?
Calcium Tungstate (CaWO₄) is composed of Oxygen (O), Calcium (Ca), Tungsten (W).