Introduction of Calcium fluoride
Introduction of Calcium fluoride
Boiling point:2500℃
Chemical formula:CaF2
Water soluble:Hardly soluble in water
Molecular weight:78.08
Density:3.18
Appearance:White powder or crystal
CAS NO.:7789-75-5
Melting point:1402℃
Physical and chemical properties:
Crystal structure: It belongs to the equiaxed crystal system, which is cubic, octahedron or dodecahedron. Colorless crystal or white powder, natural ore contains impurities, slightly green or purple. Glows when heated. The density is 3.18 g/cm3, the melting point is 1402°C, the boiling point is 2497°C, and the refractive index is 1.434. Low toxicity. Very difficult to dissolve in water. It is soluble in hydrochloric acid, hydrofluoric acid, sulfuric acid, nitric acid and ammonium salt solutions, but insoluble in acetone. When dissolved in aluminum salt and iron salt solution, it forms a complex and reacts with hot concentrated sulfuric acid to generate hydrofluoric acid. Calcium fluoride reacts with concentrated sulfuric acid in a lead container to produce hydrogen fluoride.
Preparation:Dissolve calcium carbonate or calcium hydroxide with hydrofluoric acid, concentrate the resulting solution, or add fluoride ions to the calcium salt aqueous solution to obtain a colloidal precipitate of calcium fluoride, which can be obtained by refining. The laboratory generally prepares calcium fluoride by reacting calcium carbonate with hydrofluoric acid or repeatedly treating fluorite powder with concentrated hydrochloric acid and hydrofluoric acid.
Exist:
Calcium fluoride minerals in nature are fluorite or fluorspar, which are gray, yellow, green, purple and other colors due to different impurities. Sometimes they are colorless, transparent, glassy, brittle, and have a relative density of 3.01~3.25. Significant fluorescence phenomenon. The synthetic pure calcium fluoride crystals are also colorless and transparent.Very pure fluorspar is used to make special lenses. Fluorite is mainly used as a cosolvent for smelting metals.
Usages:
Calcium fluoride has a wide range of uses, and with the advancement of science and technology, its application prospects are becoming wider and wider. At present, it is mainly used in the three major industries of metallurgy, chemical industry and building materials, followed by light industry, optics, sculpture and national defense industries. Therefore, according to the application requirements, there are currently four major series of fluorite mineral products in my country, namely, fluorite lump ore, fluorite (fluorite) concentrate, fluorite powder, and optical and carved fluorite.
We supply Calcium fluoride focus on quality, service and expertise:
• Quality: Producing purity synthetic Calcium fluoride, based on pure raw materials only, with the lowest heavy metal content. We can also manufacture products of different concentrations to meet customer needs.
• Service: Offer stable quality of the product to clients, keep doing best for after-sales service.A close cooperation with our clients enables us tobetter understand the customer's usage of our products, and make modifications according to the customer's feedback .
•Expertise: Custom-made packaging and logistics、different concentrations of chemical products can be offered to meet customer’s requirements.
FOSHAN NANHAI SHUANGFU CHEMICAL CO., LTD is one of the manufacture of medium and high quality Calcium fluoride, supply long term production and delivery of this product all over the world.
Attn:Nicole Huang (Sales Manager)
Add: Qishan Industry Park, Yanfeng Road, Shishan, Nanhai District,Foshan City,China.
Phone: 86 757 81108788
Mobile: 86 13928083637
E-mail: sales@df-chemicals.com
