【 在 redalee (redalee) 的大作中提到: 】
: 标 题: ASK:ethylene glycol 怎么解释？？
: 发信站: BBS 水木清华站 (Tue Sep 21 15:01:01 2004), 站内
:
: 乙烯ethylene，乙二醇glycol
此处不能简单将两个单质的名称组合的，需要挨个分析一下：
ethylene 1. = ethene (乙烯) 2. = "-CH2-CH2-" (次乙基)
glycol 1. = 甘醇 2. = Any of various alcohols containing
two hydroxyl groups (二元醇的类名)
ethylene glycol命名法中恰恰都是采用第二种含义:
(仅)含次乙基的二元醇
其余的命名道理类似
同时附上关于ethylene glycol的读物一篇，供有兴趣者阅读
Ethylene Glycol Chemical Backgrounder
Description:
Ethylene glycol (C.A.S. 107-21-1) is a colorless, sweet-tasting liquid which
is used primarily as an anti-freeze and in the manufacture of polyester
fiber and film. During World War I, when it became of commercial interest
, it was used as a substitute for glycerol in the manufacture of explosives
.
Ethylene glycol is also used as a heat-transfer fluid, in aircraft and runway
de-icing mixtures, to provide freeze-thaw stabilization to latex coatings
, to improve flexibility and drying time of oil-based paints containing alkyd
resins, as a dehydrating agent for natural gas, in motor oil additives,
and as an additive in the formulation of inks, pesticides, wood stains, adhesives
, and other products. In explosive water-gels and slurries, it lowers the
freezing point and acts as a coupling agent between water and the other
components.
High purity ethylene glycol is used as a solvent and suspending medium for
ammonium perborate, the conductor in most electrolytic capacitors.
Ethylene glycol can be used to make glycol ethers, chemicals which recently
have been linked to an increased risk of miscarriage in women working in
the manufacturing of semiconductor chips.
Chemical properties:
Ethylene glycol is an odorless liquid completely miscible with water and
many organic liquids. Ethylene glycol markedly reduces the freezing point
of water. It is a slight fire hazard when exposed to heat or flame, and
a moderate explosion hazard when exposed to flame. It can react violently
with chlorosulfonic acid and oleum.
Synonyms for ethylene glycol are 1,2-dihydroxethane, 1,2- ethanediol, ethylene
alcohol, ethylene dihydrate, glycol, glycol alcohol, and monoethylene glycol
.
Identification:
Chemical Name: Ethylene Glycol
Regulatory Name: Ethylene Glycol
Formula: C2H6O2
CAS: 107-21-1
STCC: 4960196
CHRIS: EGL
UN Number : 8027
U.S. manufacturers of Ethylene Glycol are: BASF Corporation, Mount Olive,
NJ; Dow Chemical USA, Midland, MI ; Eastman Kodak Company, Rochester, NY
; Formosa Plastics Corporation USA, Livingston, NJ; Hoechst Celanese Corporation
, Somerville, NJ; Huntsman Corporation, Salt Lake City, UT; Shell Oil Company
, Houston, TX; Sun Company, Inc., Philadelphia, PA ; Union Carbide Corporation
, Danbury, CT; and Occidental Petroleum Corporation, Los Angeles, CA.
Health effects:
If ethylene glycol is ingested, it causes initial central nervous system
stimulation followed by depression; it later causes kidney damage which can
cause death. It is very toxic to inhale in particulate form.
Exposure Values:
: 但是ethylene glycol 是 1,2-二羟基乙醇，为什么不是1,2-二羟基乙烯醇？
:
: 同样
: propylene dibromide 是 1,2-二溴丙烷，为什么不是 1,2-二溴丙烯？
:
: 能指点一下ethylene的正确的完整的说法吗？谢谢！
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: ※ 来源:·BBS 水木清华站
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