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Calcium tungstate CAS#7790-75-2

Calcium tungstate CAS#7790-75-2

Basic Information

Calcium tungstate
CaWO₄

Calcium tungstate is an optical material with a scheelite crystal structure and both luminescent and thermoluminescent behavior. It is used as a phosphor and laser host in optical and electronic applications. Its blue-light emission under ultraviolet excitation supports luminescence-related technologies, while its thermoluminescent response is relevant to radiation detection and measurement applications.

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product description

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.



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 Specifications

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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Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

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FAQ

1. What products does Shandong Junzheng Chemical supply?
We supply inorganic chemicals, organic solvents, water treatment chemicals, and surfactants, including calcium chloride, soda ash, sodium bicarbonate, caustic soda, citric acid, ethyl acetate, and SLES. Please contact us to confirm specific product availability.


2. Which industries do your products serve?
Our products serve pharmaceutical, agrochemical, dye, rubber, construction, coal processing, and other chemical industries. Product suitability depends on the required grade, specifications, and application.


3. How can I get a quotation?
Please provide the product name, CAS number, required specifications, quantity, packaging requirements, and destination port. These details help us prepare an accurate quotation.


4. How do you control product quality?
We follow strict quality testing procedures supported by technical personnel, research equipment, and an established management system. Specific quality requirements can be confirmed before placing an order.


5. Can you help me select a suitable chemical?
Yes. Our technical team can assist with product selection based on your application and required specifications. Please share your intended use and key technical requirements.

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