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On July 6, in Sanmenxia City, Henan Province, Li Dongliang, his wife and son were found lying in an abandoned mine. The cave is an abandoned gold mine where "hole washing" gold digging equipment and cyanide odor residues have been found. This is the second "cave washing" accident in the local area, two times a total of 7 people lost their lives, Sanmenxia issued a notice saying that it will start to crack down on the illegal exploitation of mineral resources.
It is understood that the gold mine cavewash is to use the configured agent to connect the water pump to rinse the ore to leach the gold, and then adsorbed with activated carbon, and finally use fire to refine the gold. However, after washing the cave, it will produce highly toxic cyanide, which can cause death.
According to the data, the cyanide solids are potassium cyanide and sodium cyanide, which are colorless crystals, and hydrolysis produces hydrocyanic acid with a bitter almond flavor, while hydrogen cyanide is a colorless gas that itself has a faint bitter almond taste. Cyanide is a regulated chemical that can only be purchased by those who qualify for procurement, but some people will change hands at high prices to earn the difference.
It is understood that on July 13, Sanmenxia City held a special action to rectify the illegal mining of mineral resources, and will adopt the method of piece by piece, point by point, and mine by mine, to carry out "dragnet" and "carpet" inspections.