xcellent Optical Performance
Serves as an effective laser host material for a wide range of electronic and optical applications.
Unique Scheelite Crystal Structure
The stable scheelite structure provides reliable physical and chemical properties.
Luminescent Properties
Exhibits strong luminescence, suitable for optical and sensing technologies.
Thermoluminescent Capability
Demonstrates thermoluminescence, making it useful in radiation detection and measurement applications.
Calcium Tungstate CAS#7790-75-2
Calcium Tungstate (CaWO₄) is an optical material widely used as a laser host for various electronic applications. It features a scheelite crystal structure and exhibits luminescent as well as thermoluminescent 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 | 141,712 |
| 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 widely recognized as a phosphor material that emits light in the 310–700 nm range when excited by wavelengths between 220–300 nm. Its emission peak at 440 nm produces a distinct blue light, making it suitable for optical and luminescent applications.
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