“ethanol”的概念、定义、翻译、参考文献-科学参考

ethanol

Chemistry

A colourless water-soluble alcohol, C₂H₅OH; r.d. 0.789 (0°C); m.p. –117.3°C; b.p. 78.3°C. It is the active principle in intoxicating drinks, in which it is produced by fermentation of sugar using yeast
$C_{6} H_{12} O_{6} \to 2 C_{2} H_{5} OH + 2 {CO}_{2}$
The ethanol produced kills the yeast and fermentation alone cannot produce ethanol solutions containing more than 15% ethanol by volume. Distillation can produce a constant-boiling mixture containing 95.6% ethanol and 4.4% water. Pure ethanol (absolute alcohol) is made by removing this water by means of drying agents.
The main industrial use of ethanol is as a solvent although at one time it was a major starting point for making other chemicals. For this it was produced by fermentation of molasses. Now ethene has replaced ethanol as a raw material and industrial ethanol is made by hydrolysis of ethene.

Biology

A colourless water-soluble alcohol, C₂H₅OH. It is the active principle in intoxicating drinks, in which it is produced by alcoholic fermentation of sugar using yeast:
$C_{6} H_{12} O_{6} \to {2C}_{2} H_{5} OH + {2CO}_{2}$
The ethanol produced kills the yeast and fermentation alone cannot produce ethanol solutions containing more than 15% ethanol by volume. See also brewing.

单词	ethanol
释义	ethanol Chemistry A colourless water-soluble alcohol, C₂H₅OH; r.d. 0.789 (0°C); m.p. –117.3°C; b.p. 78.3°C. It is the active principle in intoxicating drinks, in which it is produced by fermentation of sugar using yeast $C_{6} H_{12} O_{6} \to 2 C_{2} H_{5} OH + 2 {CO}_{2}$ The ethanol produced kills the yeast and fermentation alone cannot produce ethanol solutions containing more than 15% ethanol by volume. Distillation can produce a constant-boiling mixture containing 95.6% ethanol and 4.4% water. Pure ethanol (absolute alcohol) is made by removing this water by means of drying agents. The main industrial use of ethanol is as a solvent although at one time it was a major starting point for making other chemicals. For this it was produced by fermentation of molasses. Now ethene has replaced ethanol as a raw material and industrial ethanol is made by hydrolysis of ethene. Biology A colourless water-soluble alcohol, C₂H₅OH. It is the active principle in intoxicating drinks, in which it is produced by alcoholic fermentation of sugar using yeast: $C_{6} H_{12} O_{6} \to {2C}_{2} H_{5} OH + {2CO}_{2}$ The ethanol produced kills the yeast and fermentation alone cannot produce ethanol solutions containing more than 15% ethanol by volume. See also brewing.
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