CaF2 Calcium fluo...

CaF2   Calcium fluoride  7789-75-5

CaF2 Calcium fluoride 7789-75-5

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Calcium fluoride 7789-75-5 CaF2

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  • Appearance:Powder
  • Application:7789-75-5
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Details:

Calcium fluoride Basic information
Chemical Properties Uses Production method
Product Name: Calcium fluoride
Synonyms: CalciuM floride;Calcium Fluoride in china;ANTI-CNOT8 (C-TERM) antibody produced in rabbit;CAF1-like protein;CALIFp;CCR4-associated factor 8;Calciumfluoride,Fluorspar;Calcium fluoride anhydrous, powder, 99.99% trace metals basis
CAS: 7789-75-5
MF: CaF2
MW: 78.07
EINECS: 232-188-7
Product Categories: Inorganics;metal halide
Mol File: 7789-75-5.mol
Calcium fluoride Structure
 
Calcium fluoride Chemical Properties
Melting point  1402 °C
Boiling point  2500 °C(lit.)
density  3.18 g/mL at 25 °C(lit.)
refractive index  1.434
Fp  2500°C
storage temp.  -20°C
solubility  Slightly soluble in acid; insoluble in acetone.
form  rod
color  white
Water Solubility  INSOLUBLE
Sensitive  Hygroscopic
Merck  14,1667
Stability: Stable. Incompatible with acids.
CAS DataBase Reference 7789-75-5(CAS DataBase Reference)
NIST Chemistry Reference Calcium fluoride(7789-75-5)
EPA Substance Registry System Calcium fluoride (CaF2)(7789-75-5)
 
Safety Information
Hazard Codes  Xi,Xn
Risk Statements  36/37/38
Safety Statements  26-37/39-36
RIDADR  3288
WGK Germany  1
RTECS  EW1760000
Hazard Note  Irritant
TSCA  Yes
HS Code  28261900
Hazardous Substances Data 7789-75-5(Hazardous Substances Data)
MSDS Information
Provider Language
Calcium fluoride English
SigmaAldrich English
ACROS English
ALFA English
 
Calcium fluoride Usage And Synthesis
Chemical Properties Calcium fluoride is the main ingredient of fluorspar or fluorite, the chemical formula is CaF2, it is colorless cubic crystal or white powder. The relative density is 3.18, the melting point is 1423℃, boiling point is about 2500 ℃. The solubility in water is minimal , 100g water can dissolve only 0.0016g at 18 ℃, it is insoluble in acetone, but soluble in hydrochloric acid, hydrofluoric acid, sulfuric acid, nitric acid and ammonium salt solution, and it can not react with dilute acid, but can react with hot concentrated sulfuric acid and generate hydrofluoric acid, it can form a complex when dissolves in aluminum and iron salts (Fe3 +) solution. Natural calcium fluoride is mineral fluorite or fluorspar, often shows gray, yellow, green, purple and other colors, sometimes it is colorless, transparent, shiny glass, brittle, and the relative density is 3.01~3.25, it has significant phenomenon of fluorescence. It can be used as the source of fluorine and the material to make hydrofluoric acid system, fluoride; and it can also be used in terms of the manufacture of glass, enamel, glaze. Fluorite is mainly used as a flux in metallurgy, the very pure fluorspar can be used to make specialty lenses. Water when contains (1~1.5) × 10-6 calcium fluoride can prevent dental problems. In addition, it can be used in smelting iron and steel, chemicals, glass, ceramics manufacturing. Pure product can be used for catalyst of dehydration, dehydrogenation. By the effect of soluble calcium salts (calcium carbonate or calcium hydroxide) and sodium fluoride or hydrofluoric acid, ammonium fluoride, calcium fluoride can be obtained.
Uses
Industry Application Role/benefit
Chemical manufacture Production of hydrofluoric acid and fluoride Raw material/source of fluoride
Production of fluorine fine chemicals and synthetic cryolite Raw material/source of fluoride
Architectural material Production of glass Fluxing agent/promote the melting of raw materials
Production of cement Mineralization agent
Production of ceramic glaze Fluxes and coloring aids
Metallurgy Iron and steel smelting, ferroalloy production,etc. Fluxing agent/reduce the melting point of refractory substances
Medicine Treatment, control, prevention, & improvement of allergic reactions Promoting new bone formation
Thermal imaging systems, spectroscopy, telescopes and excimer lasers Manufacture of optical components, such as windows and lenses Raw material/broad range of transmission light frequencies; low refractive index; high thermo stability
Others Production of welding agents Important components in coatings of welding rods and welding powders
Dehydration and dehydrogenation reaction Catalyst/accelerate the process of reaction
Manufacture of brake lining Additive/helps reduce abrasion caused by high heat and friction
 
Production method The fluorite deposits which have been found in china, are main used the mine using underground mining method, or shallow open-pit mining, and underground deep mining, for ore body most tilt vein, the extending is also large. Mining method is based in shallow hole Shrinkage Method based. Mining process sees "phosphate rock." Beneficiation methods have two types generally, the one is raw ore can become qualified ore concentrate by handling select, the second is hand-selected lean ore and tailings.
Chemical Properties White Powder
Uses Fluorspar is the main primary source of fluorine and its Compounds. In ferrous metallurgy it is used as a flux to increase the fluidity of the slag. The steel industry is the largest consumer; the chemical industry, second and glass and ceramics, third. Synthetic fluorspar is used in the optical industry (transmits u.v. rays), and pure calcium fluoride is used as catalyst in dehydration and dehydrogenations. Used to fluoridate drinking water.
General Description Odorless gray powder or granules. Sinks in water.
Reactivity Profile Calcium fluoride has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.
Health Hazard Little acute toxicity

 

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