VB1

Influences of additions of VB1 、L-Cystine and TiO2 into the liquor on photicdecomposition of pigment under similar conditions were also studied.

通过添加盐酸硫胺、L-胱氨酸和二氧化钛与对照溶液的光降解速率进行比较,确认这三 种添加剂对黑米色素光降解的影响。

Stable Vitamin K 3 (MNB) is synthesized by addition reaction of raw materials of niacinamide, chlorhydric acid and menadione sodium bisulfite at 25℃.

以烟酰胺、盐酸为原料 ,在 2 5℃反应得烟酰胺盐酸盐溶液 ,而后与亚硫酸氢钠甲萘醌 (MSB)发生加成反应 ,反应的物料配比为 :n(亚硫酸氢钠甲萘醌 ) ∶ n(烟酰胺 ) ∶ n(盐酸 ) =1∶1。

When a chlorhydric acid tank arrived at the power station of Harbin Petrochemical Company, it was kept for a whole winter months at a temperature of - 38℃.

中国石油天然气股份有限公司哈尔滨分公司电站车间的一台盐酸储罐进厂后曾在严寒环境(-38℃)放置了一个冬天,致使内壁村胶层质量受到了影响,储罐投用一个月后便发生了腐蚀泄漏事故。

A process for preparing polyaluminum chloride from waste chlorhydric acid and poor quality kaolin has been developed.

开发出一种用废盐酸和劣质高岭土生产聚合氯化铝的方法。