浓硫酸

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

正十二醇和氢溴为原料,在浓催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

工业废氢溴(48%)为原料,在浓存在下,与正辛醇进行反应合成1-溴辛烷。

The design parameters of anodic protection coolers and the reason why to choose a prepump process are presented.

介绍阳极保护浓冷却设计参数,选用前流程原因,重点讨论冷却水路设计方案。

By the carbonification degree in the concentrated sulphuric acid, the mineral wax, such as paraffin wax added can be determined.

根据蜂蜡中烃类在浓中可被炭化，加入石蜡等矿物蜡不被炭化来测定此类掺杂物。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

酮和丙酮为原料,用强性离子交换树脂代替浓作为催化剂,直接酯化合成酰丙酮中间体异丙酯。

Methods Certain amounts of and Zn were put into the wastewater to produce hydrogen (H2) and the H2 reacted with S2-to form H2S, and sulfuret was separated from the wastewater.

方法在废水样中加入一定量浓和锌粒,生成H2,利用H2和S2-结合生成H2S,分离化物。