Barium fluoride

Barium fluoride Basic information
Description References
Product Name:Barium fluoride
Synonyms:BARIUM FLUORIDE, 99.99%, EXTRA PURE;Barium fluoride, 99%, pure;Barium fluoride, extra pure;Barium fluoride, Puratronic, 99.99% (metals basis);Barium Fluoride, Puratronic (Metals Basis);Barium(II) fluoride 99.99+%;BARIUM FLUORIDE 99.99 SUPRAPUR;Barium fluoride 99.99% trace metals basis
CAS:7787-32-8
MF:BaF2
MW:175.32
EINECS:232-108-0
Product Categories:Barium Salts;Ultra-High Purity Materials;Ba;Barium;Chemical Synthesis;Inorganic Salts;Materials Science;Metal and Ceramic Science;Synthetic Reagents;metal halide;Fluoride;Industrial/Fine Chemicals;Inorganic Chemicals;Barium Salts;BariumMetal and Ceramic Science;Inorganic Salts;Inorganics;Salts;Synthetic Reagents;Crystal Grade Inorganics
Mol File:7787-32-8.mol
Barium fluoride Structure
Barium fluoride Chemical Properties
Melting point 1354 °C
Boiling point 2260 °C(lit.)
density 4.89 g/mL at 25 °C(lit.)
vapor pressure 0Pa at 20℃
refractive index 1.4741
Fp 2260°C
storage temp. Store at +5°C to +30°C.
solubility 1.2g/l
form random crystals
color White
Specific Gravity4.89
Water Solubility 1.6 g/L (20 ºC)
Sensitive Hygroscopic
Merck 14,974
Solubility Product Constant (Ksp)pKsp: 6.74
Exposure limitsACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stability:Stable. Incompatible with acids.
InChIKeyOYLGJCQECKOTOL-UHFFFAOYSA-L
CAS DataBase Reference7787-32-8(CAS DataBase Reference)
NIST Chemistry ReferenceBarium fluoride(7787-32-8)
EPA Substance Registry SystemBarium fluoride (BaF2) (7787-32-8)
Safety Information
Hazard Codes Xn,T
Risk Statements 20/22
Safety Statements 28-28A
RIDADR UN 2811 6.1/PG 3
WGK Germany 1
RTECS CQ9100000
Hazard Note Toxic
TSCA Yes
HazardClass 6.1
PackingGroup III
HS Code 28261990
ToxicityLD50 orally in Rabbit: 250 mg/kg
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
Barium fluoride Usage And Synthesis
DescriptionBarium fluoride (chemical formula: BaF2) is a inorganic salt consisting of barium and fluorine. It appears as a transparent crystal and is presented in the mineral frankdicksonite in nature.
Barium fluoride
Barium fluoride has many applications. It can be used for the manufacturing of optical components such as lenses as well as the windows of infrared spectroscopy. It can also be used as scintillators for detection of X-rays, Gamma rays and other high energy particles. In aluminium-metallurgy, it is used as additive in aluminium refining process. It can also be used as a flux and opacifying agent during the enamel and glazing first production. Moreover, it is also applied in the production of welding agents. Barium fluoride is made through the reaction between barium carbonate with ammonium fluoride.

Referenceshttps://www.webelements.com/compounds/barium/barium_difluoride.html
https://en.wikipedia.org/wiki/Barium_fluoride
http://www.solvay.com/en/markets-and-products/featured-products/Barium-fluoride.html

DescriptionBarium fluoride appears as colourless, odourless crystals/white powder and is slightly soluble in water but soluble in ethanol and methanol. When heated, barium fluoride decomposes and emits toxic fumes of fluorine and barium. Barium fluoride is used as a preopacifying agent and in enamel and glazing frits production. Its other use is in the production of welding agents (an additive to some fluxes, a component of coatings for welding rods and in welding powders). It is also used in metallurgy as a molten bath for refining aluminium.
Chemical PropertiesBarium fluoride, BaF2, is a white crystal or powder.Under the microscope crystals may be clear and colorless. Barium fluoride is used commercially in combination with other fluorides for arc welding (qv) electrode fluxes.
Physical propertiesBarium fluoride (BaF2), also known as barium(II) fluoride, is a solid which can also be a transparent crystal. Its molecular weight is 175.34 g/mol. It occurs in nature as the mineral “Frankdicksonite”. It occurs as a white powder with a melting point of 1290 and a boiling point of 2259°C. It is slightly soluble in water (0.159 at 0.0°C and 0.162 g/100 ml of water at 20°C). The solid generally assumes the fluorite structure, but when subjected to high pressure, changes to the PbCl2 structure. In the vapor phase, the BaF2 molecule is nonlinear with an F–Ba–F angle of approximately 108°C.
UsesAs a flux and opacifier in vitreous enamels; in the manufacture of carbon brushes for DC motors and generators; in heat-treating metals; in embalming; in glass manufacture.
UsesBarium Fluoride is used in ceramic flux, carbon brushes for electrical equipment, glass making, in the manufacture of other fluorides, crystals for spectroscopy, electronics and dry-film lubricants. Barium Fluoride is used in spectroscopic components. Barium Fluoride is often suitable for applications in the passive IR band (8 to 14 ?m) and is often used as a viewport window for thermography.
Flammability and ExplosibilityNonflammable
Safety ProfileA poison by ingestion and intraperitoneal routes. Moderately toxic by subcutaneous route. An experimental teratogen. See also FLUORIDES and BARIUM COMPOUNDS (soluble). When heated to decomposition it emits toxic fumes of F-.
Purification MethodsWash it well with distilled H2O and dry it in a vacuum. Its solubility in H2O is 1.6g (10o), 1.6g (20o) and 1.62g (30o) per L, and is soluble in mineral acids and aqueous NH4Cl. It may be stored in glass bottles. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 234 1963.]
Barium fluoride Preparation Products And Raw materials
Raw materialsHydrogen fluoride-->Barium carbonate
Fluorinated carbon Potassium fluoride dihydrate Barium iodide Barium fluoride crystal optic disc, 25mm x 4mm, polished both sides Barium Barium fluoride crystal optic rectangle, 30mm x 15mm x 4mm, polished both sides Barium carbonate Barium fluoride crystal optic rectangle, 38.5mm x 19.5mm x 4mm, polished both sides Barium chloride dihydrate Barium fluoride crystal optic disc, 32mm x 3mm, polished both sides Barium fluoride crystal optic disc, 13mm x 2mm, polished both sides sodium fluoride BARIUM FLUORIDE CHLORIDE POLARISER WITH BARIUM FLUORIDE SUBSTRATE BARIUM FLUORIDE BROMIDE FLUORIDE STANDARD Barium chloride BARIUM HYDRIDE

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