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дулаан ацетилен үүсгэхийн тулд кальцийн карбид ба усны …
Description Calcium carbide is an important basic chemical raw material, mainly used to produce acetylene gas. Also used in organic synthesis, oxyacetylene welding, etc.Physical and chemical properties: The ore is a yellowish-brown or black blocky solid, and the pure product is a white crystal (t...
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