7790-79-6[Cd+2].[F-].[F-]LVEULQCPJDDSLD-UHFFFAOYSA-LCadmium fluoride is a water-insoluble chemical compound of cadmium used in oxygen-sensitive applications, such as the production of metallic alloys. Cadmium is a transition metal and chemical element with the symbol Cd and atomic number 48. It is found naturally in the earth's crust, though rarely on it's own. (L6, L467)
7790-79-6DTXSID6064878化学的特性White powder
Cadmium initially binds to metallothionein and is transported to the kidney. Toxic effects are observed once the concentration of cadmium exceeds that of available metallothionein, and it has also been shown that the cadmium-metallothionein complex may be damaging. Accumulation of cadmium in the kidney results in increased excretion of vital low and high weight molecular proteins. Cadmium is a high affinity zinc analog and can interfere in its biological processes. It also binds to and activates the estrogen receptor, likely stimulating the growth of certain types of cancer cells and causing other estrogenic effects, such as reproductive dysfunction. Cadmium causes cell apoptosis by activating mitogen-activated protein kinases. (L8, A18, A19, A28)
Cadmium is absorbed from oral, inhalation, and dermal routes. Cadmium initially binds to metallothionein and albumin and is transported mainly to the kidney and liver. Toxic effects are observed once the concentration of cadmium exceeds that of available metallothionein, and it has also been shown that the cadmium-metallothionein complex may be damaging. Cadmium is not known to undergo any direct metabolic conversion and is excreted unchanged, mainly in the urine. (L6)
解説CdF2(150.41).金属カドミウムまたはカドミウムの酸化物,硫化物,塩化物などにフッ素を反応させると得られる.白色の粉末.等軸晶系.密度6.33 g cm-3.融点1100 ℃,沸点1748 ℃.水,フッ化水素酸,鉱酸に可溶,エタノールに不溶.ガラスの製造,半導体素子・光学装置・レーザー結晶の原料などに用いられる.[CAS 7790-79-6]森北出版「化学辞典(第2版)
用途研究用途、発行スクリーン用途の蛍光剤
使用Cadmium fluoride is used in phosphors, glass and nuclear reactor controls. It is also used in high-temperature lubricants and to start crystals for lasers. It is used in oxygen-sensitive applications such as the production of metallic alloys and it is also used in limited medical treatment protocols. In addition, it can be used in synthetic organic chemistry.
製造方法Cadmium fluoride is prepared by the reaction of gaseous fluorine or hydrogen fluoride with cadmium metal or its salt, such as chloride, oxide or sulfide:Cd + F2 → CdF2Cd + 2HF → CdF2 + H2CdO + 2HF → CdF2 + H2OIt also may be obtained by dissolving cadmium carbonate in 40% hydrofluoric acid solution, evaporating the solution and drying in vacuum at 150°C:CdCO3 + 2HF → CdF2 + H2O + CO2It also may be prepared by mixing cadmium chloride and ammonium fluoride solutions, followed by crystallization.
読み込み中…
純化方法Crystallise it by dissolving it in hot water (25mL/g at room temperature) at 60o, filtering, then cooling. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 243 1963.]
定義Available as pure crystals, 99.89%, d 6.6, mp approx- imately 1110C, soluble in water and acids, insoluble in alkalies.