1. a flammable toxic liquid diether C4H8O2 used especially as a solvent
2. a flammable toxic liquid C4H8O2 used especially as a solvent and as a clearing agent for histological preparations
dioxane 片语
片语
dioxane e二氧六环
dioxane aqueous二氧六环水溶液
dimethyl dioxane二甲基二氧乙环
dioxane lignin二氧陆木素
13 dioxane二氧六环
-dioxane二氧六环;二氧己环
- dioxane二氧六环;二氧己环
14 dioxane二氧六环
4 dioxane二氧六环
dioxane 例句
英汉例句
the synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed.
利用二甘醇为原料,以对甲苯磺酸为催化剂合成了1 ,4-二氧六环。
many countries including china have no standards limiting the amount of dioxane in shampoo and cosmetics.
包括我国在内的许多国家对洗发水、化妆品中所含的二恶烷并未作出限量规定。
the dioxane solution was concentrated by evaporation and the remaining oil was distilled in vacuo on a water bath.
在二氧六环的解决办法是通过蒸发浓缩和剩余油是在真空中蒸馏水上热水澡。
the reaction conditions such as dosages of catalyst, 1,4 dioxane and water, solvent type, reaction temperature and time, adding method were also studied.
small amount of dioxane is distributed between benzene and aqueous salt solutions at 25℃ and the concentration of dioxane in aqueous phase is determined by means of an interferometer.
在25℃下,将二氧六环分配在苯相和水盐溶液相中,然后用干涉仪测定它在水相中的浓度。
the results showed that carbonyl groups in degradation products obviously increased and quinoid matters were produced when dioxane lignin reacted with hydrogen peroxide.
结果表明,二氧六环木素与过氧化氢反应后的降解产物中羰基明显增多,而且生成了醌型物质。
background: --many countries including china have no standards limiting the amount of dioxane in shampoo and cosmetics.
包括我国在内的许多国家对洗发水、化妆品中所含的二恶烷并未作出限量规定。
the invention also relates to, in particular, compounds having two tetrahydropyrane rings or at least one tetrahydropyrane ring and a dioxane ring .