Solid lead methyl mercaptan was synthesized from liquid methyl mercaptan, and the standard methyl mercaptan gas was prepared by acidizing lead methyl mercaptan. 以液体甲硫醇合成固体甲硫醇铅,由固体甲硫醇铅酸解释放的甲硫醇配制标准气体。
Determination of trace lead ⅱ by EDTA potential titration using methyl violet ion selective electrode 甲基紫电极EDTA电位滴定法测定微量铅
The cooling process of 0.70% carbon steel wires upon patenting in lead bath and CMC ( Carboxyl Methyl Cellulose) aqueous solutions was measured respectively with the steel wire probes. 利用钢丝探头分别测量了含碳0.70%的钢丝在铅浴和CMC水溶液中的冷却过程。