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Barium fluoride

Basic information Description References Safety Related Supplier

Barium fluoride Basic information

Product Name:
Barium fluoride
CAS:
7787-32-8
MF:
BaF2
MW:
175.32
EINECS:
232-108-0
Mol File:
7787-32-8.mol
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Barium fluoride Chemical Properties

Melting point:
1354 °C
Boiling point:
2260 °C(lit.)
Density 
4.89 g/mL at 25 °C(lit.)
refractive index 
1.4741
Flash point:
2260°C
storage temp. 
Store at +5°C to +30°C.
solubility 
1.2g/l
form 
random crystals
color 
White
Specific Gravity
4.89
Water Solubility 
1.6 g/L (20 ºC)
Sensitive 
Hygroscopic
Merck 
14,974
Solubility Product Constant (Ksp)
pKsp: 6.74
Stability:
Stable. Incompatible with acids.
InChIKey
OYLGJCQECKOTOL-UHFFFAOYSA-L
CAS DataBase Reference
7787-32-8(CAS DataBase Reference)
NIST Chemistry Reference
Barium fluoride(7787-32-8)
EPA Substance Registry System
Barium fluoride (BaF2) (7787-32-8)
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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
Toxicity
LD50 orally in Rabbit: 250 mg/kg

MSDS

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Barium fluoride Usage And Synthesis

Description

Barium 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.

References

https://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

Description

Barium 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 Properties

White Fine Powder

Physical properties

Barium 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.

Uses

As 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.

Safety Profile

A 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 Methods

Wash 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 materials

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Barium fluorideSupplierMore

Wuhan jiyesheng Chemical Co., Ltd Gold
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2186555900@qq.com
Wuhan jiyesheng Chemical Co., Ltd Gold
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J & K SCIENTIFIC LTD.
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010-82848833- ;010-82848833-
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jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
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21-61259100-
Email:
sh@meryer.com
Alfa Aesar
Tel:
400-610-6006; 021-67582000
Email:
saleschina@alfa-asia.com
Basic information Description References Safety Related Supplier