半醌：醌还原时所产生的一个稳定的自由基负离子中间体称半醌。
... 苯醌;对苯醌;1,4-苯醌;p-Quinone;1,4-Benzoquinone 半醌;semiquinone 对苯醌;1,4-苯醌;对醌;对苯二酮;苯醌;2,5-环己二烯-1,4-二酮;p-Quinone;…… ...
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在DMF-四乙基溴化铵（ TEAB）质子惰性介质中，马蔺子素连续两步单电子还原生成相应氢醌阴离子，无中间体半醌自由基的化学反应发生。
In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.
结果表明，脱色的难易程度从染料结构看，依次为偶氮型、蒽醌型>金属络合型>半菁阳型。
Results prove that the degree of decoloring varies decreasingly with the dye structure in the(following) sequence: azo dyes, anthraquinone dyes, metal complex dyes, and cationic dyes.
研究了以半漂落叶松碱性亚硫酸盐-蒽醌法（AS-AQ）浆代替针叶木漂白硫酸盐浆（NBKP）与白松酸性亚硫酸盐浆（SP）的混合长纤维浆料配抄新闻纸的情况。
Semibleached alkaline sulfite-anthraquinone larch pulp(AS-AQ)is used as a substitute for the mixed long fiber pulp of NBKP and NBSP in newsprint furnish.
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