Calcium tungstate CAS#7790-75-2

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.



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Product Description

Products Description of Calcium tungstate CAS#7790-75-2

Calcium tungstate (CaWO₄) with a scheelite structure is a functional optical laser host material, possessing luminescent and thermoluminescent properties for diverse electronic uses.


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

Calcium Tungstate serves as a typical phosphor material. It emits light at 310–700 nm under excitation of 220–300 nm, with a prominent emission peak at 440 nm showing obvious blue light, ideal for optical and luminescent applications.

Product Information

Parameters


Melting point1620°C
density6.06 g/mL at 25 °C (lit.)
storage temp.-20°C
solubilityInsoluble in H{2}O. Decomposes by hot HCl, HNO{3}
formPowder
colorwhite
Specific Gravity6.062
biological sourcerabbit
Water Solubilityinsoluble H2O; decomposed by hot HCl, HNO3 [MER06]
Merck141,712
Solubility Product Constant (Ksp)pKsp: 8.06
Exposure limitsACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
InChI1S/Ca.4O.W/q+2;;;2*-1;
InChIKeyFDMFQOCGNBYKPY-UHFFFAOYSA-N
SMILES[Ca++].[O-][W]([O-])(=O)=O
CAS DataBase Reference7790-75-2(CAS DataBase Reference)
EPA Substance Registry SystemCalcium tungsten oxide (CaWO4) (7790-75-2)


Safety Information


WGK Germany3
TSCATSCA listed
HS Code28418030
Storage Class11 - Combustible Solids

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Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


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Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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