| Customization: | Available |
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| CAS No.: | 7789----------23----------3 |
| Formula: | Fk |
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Melting point 858 °C (lit.)
Boiling point 1505 °C
Density 2.48
Vapor density 2 (vs air)
Vapor pressure 1.3hPa(885°C)
Refractive index 1.363
Flash point 1505°C
Storage conditions Storeat+5°Cto+30°C.
Solubility H2O:1Mat20°C, transparent, colorless form spray drying
Color White
The specific gravity is 2.481
The Odor is tasteless
PH 7.0-8.5(25ºC,1MinH2O)
Water solubility 92.3g/100mL(18ºC)
Sensitivity Hygroscopic
The maximum wavelength lambda (Max) lambda: 260 nmamax: 0.01 lambda: 280 nmamax: 0.01 Merck14, 7632 brn3902818
Exposure limits ACGIH: TWA2.5 mg/m3NIOSH: IDLH250mg/m3; TWA2.5 mg/m3
Stable and stable. Keep away moisture. Incompatible with strong acids and bases
It is white monoclinic crystal or crystalline powder, salty, easy to absorb moisture, soluble in water but not soluble in ethanol. Its aqueous solution is alkaline and can corrodes glass and porcelain, so it is usually used as a variety of glass etching, welding flux, wood preservatives, agricultural pesticides, pesticide intermediates, pharmaceutical industry raw materials and organic fluoride raw materials, and has an indispensable role in construction, chemical industry and agriculture. IT is one of the most commonly used fluoride agents, it can be said that there is no thriving fluor-ine chemical industry without it. it is the most important period of reaction activity as a fluorinating agent, as a fluorinating agent, especially in the production and application of fine chemical industry, highly active it has an incomparable advantage over ordinary anhydrous it. it is the basic raw material for the production of fluoride Chemicalbook, chemical formula KF. Molecular weight 58.10. Colorless cubic crystal or white powder. Toxic! Easy deliquescence. Salty. The proportion is 2.48. Melting point 858ºC. Boiling point 1505ºC. Soluble in water. Soluble in acid and liquid. Insoluble in ethanol . The aqueous solution is alkaline and can corrode glass and porcelain. It is irritating to human skin, mucous membrane and eyes. Below 40.2ºC, it crystallizes in an aqueous solution to obtain KF·2H2O dihydrate, which is a monoclinic crystal and self-soluble in crystalline water at 41ºC. It is obtained by thermal decomposition of potassium hy-drogen fluoride or by neutralizing (40% or anhydrous) with potassium carbonate (or potass-ium hydroxide). Used for glass engraving, food anticorrosive, can also be used as welding flux, fluorination agent, insecticide and so on.
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