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已读[243] 发布: 2013/05/06 19:55:21
煤焦油中含有大量的脂肪族和芳香族化合物,具有强烈的刺激性气味,其中蒽、萘等成分对人体危害极大。1997年北京市建委就提出希望生产企业开发环保型聚氨酯防水涂料。...
已读[252] 发布: 2013/05/06 19:55:15
③如果匀染剂中含有脂肪族化合物,在染色的不同温度条件下兼具促染和缓染功能,大大增进分散染料的泳移,从而使高温高压色达到均匀的效果。...
已读[234] 发布: 2013/05/06 19:55:10
现代研究发现,土鳖虫的主要成分为是谷氨酸等17种氨基酸和砷等28种微量元素以及甾醇和直链脂肪族化合物。土鳖虫的提取液及水提醇沉液分别有抗血栓形成和溶解血栓的...
已读[195] 发布: 2013/05/06 19:53:03
SelectScience.net (press release) These dangerous compounds can enter the food supply through farm and production equipment as well as printer ink, but in addition, current technology is unable to sufficiently remove mineral oil hydrocarbons from recycled cardboard. Once the cardboard ...
已读[199] 发布: 2013/05/03 17:48:50
SelectScience.net (press release) These dangerous compounds can enter the food supply through farm and production equipment as well as printer ink, but in addition, current technology is unable to sufficiently remove mineral oil hydrocarbons from recycled cardboard. Once the cardboard ...
已读[257] 发布: 2013/05/02 18:25:40
对于高浓度有机废水的治理方法,往往是上述两种或三种方法进行综合处理,如废水中含有芳烃、芳香族和卤代芳香族化合物、脂肪族和氯化脂肪族化合物、有机氰化物等,若...
已读[218] 发布: 2013/05/02 18:25:23
SelectScience.net (press release) These dangerous compounds can enter the food supply through farm and production equipment as well as printer ink, but in addition, current technology is unable to sufficiently remove mineral oil hydrocarbons from recycled cardboard. Once the cardboard ...
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