Redlon Calcium Carbide Calcium Carbide CaC2 Conductive Electrolytic Stone Hydroacetylene Welding Organic Synthesis 雷德隆 电石 碳化钙 CaC2 导电电解石 氢炔焊接 有机合成

Electrolyte stone is CaC2, also known as calcium carbide. Electrolyte stone + water = calcium hydroxide + acetylene gas.
Acetylene gas can be used as fuel.
Main components of electrolytic stone
Physical and chemical properties: The ore is a yellow-brown or black blocky solid, while the pure substance is a colorless crystal (purple in cases with high CaC2 content). Density is 2.22 grams per cubic centimeter; melting point is 447°C, and boiling point is 2300°C. It reacts violently with water, producing acetylene and releasing heat. The melting point varies depending on the content of electrolite. Impurities: Due to the presence of impurities such as calcium arsenide (Ca3As2) and calcium phosphide (Ca3P2) in electrolite, toxic gases like hydrogen arsenide (AsH3) and hydrogen phosphide (PH3) are released when reacting with water. Therefore, acetylene produced from electrolite is toxic and must be removed using a concentrated H2SO4 and potassium dichromate solution.
Relative density (water = 1): 2.22

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