| 複數 | bromines |
bromine compound
溴化合物
bromine water test
溴水試驗
bromine poisoning
溴中毒
bromine vapor
溴蒸氣
bromine water
[化]溴水
bromine in side chain
支鏈溴
ethane decolorizes bromine water.
乙烷可使溴水褪色。
The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.
研究了以麥芽酚、乙基麥芽酚生產中的鹼式溴化鎂廢渣爲原料製取溴;以溴、硫和乙醇合成溴乙烷的方法。
The brominating agent were used instead of luquid bromine in bromination.
在溴代反應中以溴化試劑代替液溴;
The amount of bromine is about 60～70 percent in bromized polystyrene.
阻燃劑的含溴量達60—70%。
any of the chemical elements fluorine or chlorine or bromine or iodine or astatine.
氟、氯、溴、碘、砹中任意一種化學元素。
In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst.
本文利用三氯化鋁作催化劑,廢聚苯乙烯與溴發生親電取代反應合成溴化聚苯乙烯阻燃劑。
The products were monobromo-compounds on which the bromine atom occupied the p-position of the activating group.
該試劑反應條件溫和,選擇性好,是一種有效的活潑芳環的溴化劑。
A process for the preparation of 3,4 dihydroxybenzaldehyde from p hydroxybenaldehyde, bromine and potassium hydroxide was studied, which comprises the steps of bromation and hydrolysis.
研究了以對羥基苯甲醛、溴爲主要原料,經溴代、水解制備3,4二羥基苯甲醛的方法。
Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.
以2-乙酰基苯並咪唑和溴化鈉爲原料,在光照條件下用氯氣置換出溴化鈉中的溴素,合成獸藥噻苯咪唑中間體-2-(二溴乙酰基)-苯並咪唑氫溴酸鹽。
bromine compound
溴化合物
bromine water test
溴水試驗
bromine poisoning
溴中毒
bromine vapor
溴蒸氣
bromine water
[化]溴水
bromine in side chain
支鏈溴
ethane decolorizes bromine water.
乙烷可使溴水褪色。
The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.
研究了以麥芽酚、乙基麥芽酚生產中的鹼式溴化鎂廢渣爲原料製取溴;以溴、硫和乙醇合成溴乙烷的方法。
The brominating agent were used instead of luquid bromine in bromination.
在溴代反應中以溴化試劑代替液溴;
The amount of bromine is about 60～70 percent in bromized polystyrene.
阻燃劑的含溴量達60—70%。
any of the chemical elements fluorine or chlorine or bromine or iodine or astatine.
氟、氯、溴、碘、砹中任意一種化學元素。
In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst.
本文利用三氯化鋁作催化劑,廢聚苯乙烯與溴發生親電取代反應合成溴化聚苯乙烯阻燃劑。
The products were monobromo-compounds on which the bromine atom occupied the p-position of the activating group.
該試劑反應條件溫和,選擇性好,是一種有效的活潑芳環的溴化劑。
A process for the preparation of 3,4 dihydroxybenzaldehyde from p hydroxybenaldehyde, bromine and potassium hydroxide was studied, which comprises the steps of bromation and hydrolysis.
研究了以對羥基苯甲醛、溴爲主要原料,經溴代、水解制備3,4二羥基苯甲醛的方法。
Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.
以2-乙酰基苯並咪唑和溴化鈉爲原料,在光照條件下用氯氣置換出溴化鈉中的溴素,合成獸藥噻苯咪唑中間體-2-(二溴乙酰基)-苯並咪唑氫溴酸鹽。
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