双光气

Double hydroxyurea is a synthesis of hydroxylamine hydrochloride Triphosgene and response system.

双羟基脲的合成是用三光气和盐酸羟胺反应制的。

With 4 Xiu Shuang phenol - A and solid smooth air is raw material, dissolve it in 1 in, 2- 2 chlorine ethane solvents, slow drop adds 3 Yi Ans to carry out solution get together , with 3 Xiu benzene phenol does end dose, thick product sinks by industrial alcohol Xi after, take out to strain , wash is dry , grind white powder form flame retardant assemble carbon sour ester product.

以四溴双酚-A、固体光气为原料，将之溶解在1，2-二氯乙烷溶剂中，缓慢滴加三乙胺进行溶液聚合，以三溴苯酚做封端剂，粗产品经工业酒精沉析后，抽滤，洗涤，干燥，研磨得白色粉末状阻燃聚碳酸酯产品。

Amides were prepared in good yields under mild and neutral conditions. In chapter three,we simply outlined the applications of biscarbonate in synthesis of pharmaceuticals and their intermediates.

第三章，首先我们介绍了光气的理想替代品——双碳酸酯的物理化学性质及其在医药中间体合成中的应用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。