Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄基三乙基)为相转移催剂合成了异烟酸乙酯。
First,brine is reacted with ammonium hydrocarbonate to obtain the sodium hydrocarbonate and the ammonium chloride solution,and then filtrated.
卤水制备纯碱分两进行,第一用卤水、碳酸氢反应得到碳酸氢钠微溶析溶液,过滤。
The ammonium chloride is obtained by processing the by-product solution of ammonium chloride in the workshop of coordinative producing alcali.
副产的溶液在联碱车间加工成、工艺合理经济划算。
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This is barium hydroxide octahydrate and this is ammonium chloride.
这是八水氢氧钡， 这是铵。
For example, ammonia acts as a base when it reacts with hydrochloric acid to form ammonium chloride.
例如，氨在与盐酸生铵时充当碱。
Fun fact: ammonia and hydrochloric acid react together readily to form a solid -- ammonium chloride.
趣知识：氨和盐酸很容生固体——铵。
That's the ammonium chloride powder forming.
那是铵粉末形的过程。
Because the ammonium chloride is a solid at room temperature, it forms a superfine white powder where the two gases meet in the tubes, so we'll be able to tell exactly how far each gas traveled before they met.
因为铵在室温下是固体，所以当两种气体在管中相遇时， 会形极细的白色粉末， 这样我们就能准确地知道每种气体在相遇前走了多远。
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划词翻译
详细解释
)为相转移催
进行,第一
钡， 这是
生
知识：氨和盐酸很容
