Calcium carbide

From GAWDAwiki

Calcium carbide, known as CaC₂, is an alkaline Earth carbide obtained in the pure form as transparent crystals that decompose in water; used to make acetylene gas. ^[1]

Calcium carbide is violet-red color that appears blue-violet when it is fractured. It is decomposed readily by atmospheric humidity and has a characteristic garlic-like scent. On contact with water or in damp surroundings, acetylene is formed and explosive atmospheres can be produced.^[2]

Calcium carbide is also used as a desulfurizer in the steel manufacturing process.^[3]

References

1. http://www.answers.com/topic/calcium-carbide-1
2. IACC
3. John Gant, http://www.carbidellc.com