モリブデニウム ヘキサカルボニル 化学特性,用途語,生産方法
外観
白色~微褐黄色、結晶~結晶性粉末
用途
有機合成原料。
特徴
八面体形,Mo-C 206 pm(平均)
化学的特性
WHITE TO LIGHT YELLOW CRYSTALLINE POWDER
使用
Alumina supported molybdenum hexacarbonyl acts as an active catalyst. It is used to synthesize MoO and MoC nanowires by electron beam induced deposition.
一般的な説明
Molybdenum hexacarbonyl is a colorless compound that sublimates and decomposes without melting at 150
oC. It has an octahedral structure. Inherent sublimation of molybdenum hexacarbonyl permits it to perform as an active liquefaction catalyst. To form a catalyst it is adsorbed on dehydroxylated alumina forming subcarboyls.
危険性
Decomposes above 150C to evolve carbonmonoxide.
健康ハザード
Molybdenum hexacarbonyl is a highly toxicsubstance. It is listed in Toxic SubstanceControl Act. Acute symptoms includeheadache, dizziness, nausea, vomiting, andfever. Because of its low vapor pressure,the risk of exposure of this compound,however, by inhalation is lower than thatfrom the volatile tetra- or pentacoordinatedmetal carbonyls. Ingestion of the compoundcan cause death. Absorption of its solutionthrough skin may cause severe poisoning,manifesting the same effects as those fromother routes of exposure.
火災危険
It reacts violently with strong oxidizers. Contact
with concentrated acids is expected to be
violent. Its solutions are susceptible to detonate
spontaneously (Owen 1950). Ethereal
solutions of this compound can explode on
extended storage (Bretherick 1995).
純化方法
Sublime it in a vacuum before use [Connor et al. J Chem Soc, Dalton Trans 511 1986]. TOXIC.
参考文献
T.C.W. Mak, Z. Kristallogr., 166, 277 (1984).
モリブデニウム ヘキサカルボニル 上流と下流の製品情報
原材料
準備製品