氰化物

Cyanide is used to kill insects.

氰化物可用来杀害虫。

The isonicotinic acid - pyrazolone light intensity method is currently applied to measure the prussiates in the water.

水中氰化物的测定,目前采用异烟酸———吡唑啉酮光度法。

Most of the devices are simple—such as a blacklight and funnel above a bucket of cyanide gas—but effective.

大部份的装置虽然简单但都很管用，如在黑灯与漏斗下面放一桶氰化物毒气。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在硫酸铜、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生之一。