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1氟化钡
1氟化钡
Lithium fluoride
Molecular formula: LiF
Granularity range: 0.1-5mm can be customized
Physical properties: white cubic crystal or powder.
0.0 0.0
Product description

Product description

Molecular formula: LiF
Physical properties: white cubic crystal or powder. Heat to 1100~1200℃ to volatilize. Its melting point is 462°C. Soluble in acid, slightly soluble in water (solubility in water at 25: 0.13G/100ml), insoluble in ethanol and acetone. The relative density (d20) is 2.640. The melting point is 848°C. The boiling point is 1681℃. Toxic, the minimum lethal dose (guinea pig, oral) 200mG/kG. It is irritating.
Chemical properties: It can produce lithium hydrogen fluoride (LiHF2) with hydrofluoric acid, and produce lithium fluoride and lithium hydroxide double salt (LiF•LiOH) with lithium hydroxide.


Application
Used as a desiccant. Flux. Flux for welding aluminum. Used in the production of prisms for infrared spectrophotometers. Manufacture of enamel and glaze. In the ceramic industry, it is used to reduce the temperature of the kiln and improve the resistance to thermal shock, abrasion and acid corrosion. Used as a flux for metal welding together with other fluorides, chlorides and borates. It is the basic component of fluorine electrolytic cell electrolyte. In high-temperature storage batteries in a molten state as the electrolyte component. Used as a carrier in a breeder reactor. A large number of fluxes and brazing fluxes used in aluminum and magnesium alloys are also used as additives to improve electrical efficiency in the electrolytic aluminum industry; used as a neutron shielding material in the atomic energy industry, as a solvent in molten salt reactors; in optical glass materials Used as a transparent window for ultraviolet rays (transmittance of 77-88%), and in the lithium battery industry.

Element content

LiF≮(%)

99.0

99.9

99.99

Impurity content,≯
(%)

( Na )

0.5

0.005

0.001

( K )

0.001

0.0005

( Ca )

0.1

0.01

0.003

( Mg )

0.05

0.005

0.001

( Si )

0.05

0.01

0.005

( SO4)

0.05

0.008

0.002

( Fe )

0.005

0.005

0.0005

( Cl )

0.005

0.005

0.0005

( Al )

0.01

0.001

0.0005

( Cu )

---

0.001

0.0005

Heavy metals (calculated as Pb)

---

0.01

0.0005

 

 

1氧化钇

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欧泰稀材
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Rh≥99.95%<br> Dimensions:Diameter1 ~ 30mm, Thickness 1 ~ 30mm or customize<br> Properties: silver-white metal, extremely hard, wear-resistant, and quite ductile<br>
Gold ingot
Chemical purity:99.99%<br> Size: Diameter 1~30mm, thickness 1~30mm according to requirements
Iridium ingots, iridium particles
 Ir≥99.95%<br> Size: diameter D (1-20) * height H (10-15) mm; if the buyer has special requirements for size and unit weight, the two parties agree to order<br> Application: mainly used for evaporating coating materials  
Magnesium fluoride
Molecular formula: MgF2<br> Granularity range: 0.1-5mm can be customized<br> Physical properties: colorless crystal or white powder. <br> Uses: Optical lens coating, ceramics, electronic industry, flux for manufacturing ceramics, glass, metallurgical magnesium metal, coating of lenses and filters in optical instruments, fluorescent materials for cathode ray screens, fluxes, etc.
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