Very dangerous sodium cyanide, it is very important
Sodium cyanide is a highly toxic hazardous chemical with a chemical formula of NaCN. It is also an important basic chemical raw material for basic chemical synthesis, electroplating, metallurgy and organic synthesis medicine, pesticides and metal treatment.
Want? Not so easy
The product is controlled by the public security department according to the Regulations on the Safety Management of Dangerous Chemicals. First, it goes to the Public Security Bureau to handle the use of drugs. Then it needs to build a drug warehouse. It needs to be connected with the Public Security Bureau. It also requires double doors and doubles when used. Lock, double, entry and exit registration system.
It’s not hard to “handle†it.
Sodium cyanide is highly toxic, but as long as it is concerned with its transportation, use and subsequent treatment, sodium cyanide has almost no side effects on the environment.
Moreover, sodium cyanide is easily decomposed, and bleaching powder and hydrogen peroxide can quickly decompose sodium cyanide into carbon dioxide and nitrogen (one of the main components of air). At the same time, long-term sunlight (mainly using ultraviolet rays) can also cause sodium cyanide. break down.
Sodium cyanide gold extraction to see who is using?
Sodium cyanide gold is the mainstream gold extraction process in the world. American scientists have done a lot of research on gold extraction chemicals. The results show that sodium cyanide is the best immersion gold agent in the industry.
At present, almost all gold mines in the world use this method to produce gold. Famous such as: Barrick, Canada Gold, Newmont, Newcastle, Anglo Gold, Polar Gold, Kinross Gold, Jintian Gold Company. At present, sodium cyanide is almost entirely used as a gold immersion agent in industrial applications in both developed and developing countries.
After 20 years of production, cyanide has not been detected
Zijinshan sodium cyanide gold extraction process takes five-tenths of sodium cyanide and water for proportion spraying. After spraying, all the wastewater is collected and neutralized to eliminate cyanide, and then re-entered into the production process for recycling. Zero discharge of wastewater, the environmental protection department tests the water quality of Tingjiang every month, and cyanide ions have never been detected.
A large number of domestic and foreign production and technology proved highly toxic chemical is not terrible, the key is to manage, as the city coal gas can be breathtaking moment of death, a drop of pesticides in rural areas can cause people's lives the same. Even the best scientific and technological achievements must be strictly regulated and managed to cooperate. We can not waste food.
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