国际金价下跌导致氰化钠需求下降，价格下挫，局部地区对中国高品级片状有一定的需求。

The drop of global gold price results in the decrease of demand and the fall of price for sodium cyanide. However, the Chinese high grade flake product is still in demand at some regions.

以氰化钠污染事故的处置为例介绍了监测方法，对如何做好突发性环境污染事故的处置与监测提出对策。

The paper takes the polluting accident treatment of sodium cyanide as a case, then puts forward the countermeasures of how to treat and monitor the abruptly environmental polluting accident.

巯基乙酸钠中两个极性基团一COOH及—SH具有同硫化矿强烈反应的特性，是代替氰化钠抑杂的理想药剂。

COOH and -SH two polar groups in mercaptoacetic sodium acid have properties of strong reaction to sulphide ores. It is the most satisfactory agent for replacing sodium cyanide to suppress impurities.