英语翻译Other secondary alcohols yield ketones on oxidation in the same way as iso-prypyl alcohol:(b) Distillation of calcium acetate.Acetone is produced when dry calcium acetate is heated,The acetone evolved is condensed and collected.It is then

英语翻译Other secondary alcohols yield ketones on oxidation in the same way as iso-prypyl alcohol:(b) Distillation of calcium acetate.Acetone is produced when dry calcium acetate is heated,The acetone evolved is condensed and collected.It is then
英语翻译
Other secondary alcohols yield ketones on oxidation in the same way as iso-prypyl alcohol:
(b) Distillation of calcium acetate.Acetone is produced when dry calcium acetate is heated,
The acetone evolved is condensed and collected.It is then purified by heating with sodium bisulphite solution (p.142).
The formation of a ketone by heating the calcium salt of a fatty acid is a quite general reaction,e.g.
but the yield of ketone is not always very high.
(c) From wood.A little acetone is obtained from the pyroligneous acid obtained when wood is heated(p.103).The pyroligneous acid also contains acetic acid which can be converted into calcium acetate,from which acetone can be obtained as in (b).Wood is not nowadays,how-ever,an important source of acetone.
(d) Fermentation of starch.Starch can be decomposed into a mixture of acetone,n-butyl alcohol,carbon dioxide and hydrogen by a variety of different bacteria,e.g.clostridum acetobutylicum.All the products are of use,so that this is a valuable industrial process.Poor quality grain is used as the source of starch,and a culture of the special bacterium is added to it,

英语翻译Other secondary alcohols yield ketones on oxidation in the same way as iso-prypyl alcohol:(b) Distillation of calcium acetate.Acetone is produced when dry calcium acetate is heated,The acetone evolved is condensed and collected.It is then
其它次要酒精产生酮在氧化作用以与iso prypyl 酒精相似的方式:(b) 钙的蒸馏acetate.Acetone 导致当干燥钙醋酸盐是激昂,丙酮演变被凝聚并且collected.It 由加热然后净化用钠亚硫酸氢盐解答(p.142) .酮的形成由加热脂肪酸的钙盐是相当一般反应,即.但出产量酮总不是非常高的.(c) 从木头.小的丙酮被获得从焦木的酸被获得当木头是heated(p.103) .焦木的酸并且包含可能被转换成钙醋酸盐,从丙酮作为可能被获得的乙酸(b).Wood 现今不是,然而,丙酮的一个重要来源.(d) 淀粉的发酵.淀粉可能被分解入丙酮、n-butyl 酒精、二氧化碳和氢由各种各样不同的细菌,即clostridum acetobutylicum 混合物.所有产品有用,以便这是一种可贵的工业生产方法.质量差五谷被使用作为淀粉的来源,并且特别细菌的文化增加来它,