易醇
![易醇](../cache/1349209.jpg)
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它微溶于水,易溶于醇、醚等有机溶剂,对热稳定,对光敏感。
It is stable against heat , but sensitive to light .
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易溶解于醇、酯、酮、芳烃和氯化烃,不溶于脂肪烃和水。
Easily soluble in alcohol , ester , ketone , aromatic hydrocarbon and chlorinated hydrocarbon , and insoluble in aliphatic hydrocarbon and water ;
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本品为无色至淡黄色油状透明液体,具有特殊的气味。不溶于水,易溶于醇、、酮等有机溶剂。
Physical and chemical characteristic : Colorless transparent liquid , especial smell . Easy dissolve in alcohol , ether , acetone , etc. Not dissolve in water .
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由于醇的来源广,商业化种类繁多且易得,以醇为原料合成酰胺逐渐成为研究热点,但大多报道基于贵金属或重金属催化体系。
Alcohol has wide source , and they are commercial and accessible . Using alcohol as raw material to synthesize amide gradually becomes a hot research . However , most of the reports are based on precious or heavy metal catalysts .
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但金属醇盐,尤其是铌的醇盐价格非常昂贵且极易水解,许多醇盐之间的水解速度差别较大,使在多组元氧化物制备中工艺难以控制或无法控制。
But , metal alkoxides , especially niobate alkoxides , are expensive and sensitive to moisture in air . The great difference of the hydrolysis rate between metal alkoxides leads to the difficulty in controlling the processing technology for the preparation of inorganic materials with multi-component .