1·The application of ferreous synthetic furnace, triad graphite synthetic furnace and diad graphite synthetic furnace in the production of high purity hydrochloric acid is compared.
对铁合成炉、三合一石墨合成炉、二合一石墨合成炉在高纯盐酸生产中的应用情况进行了对比。
2·The effects of concentration of hydrochloric acid and aluminum matrix were discussed.
对盐酸的浓度、铝基体的影响进行了讨论。
3·Morpholine hydrochloride was synthesized from morpholine and hydrochloric acid, then reacted with dicyandiamide, and obtained moroxydine hydrochloride.
以吗啉和盐酸为原料合成盐酸吗啉，使其与双氰胺反应制备盐酸吗啉脒胍。
4·Morocydine hydrochloride was synthesized with morpholine? hydrochloric acid and dicyandiamide.
以吗啉、盐酸、双氰胺为原料合成盐酸吗啉呱。
5·Some phosphoric acid production techniques are introduced, such as nitric acid technique, hydrochloric acid technique, sulfuric acid technique, which use phosphate rock as raw material.
介绍了以磷矿为生产原料的硝酸法、盐酸法、硫酸法等湿法磷酸生产工艺，并对其工艺进行了说明和比较。