Chemistry: Ethyne production

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4 Terms

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production of ethyne

calcium dicarbide a grey lumpy solid reacts very exothermically with water
Ca(OH)2 is a white powder with great volume
ethyne is bubbled through acidified copper(II) sulphate to remove impurities

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impurities removed through acidified copper(II) sulphate

phospine gas and calcium phosphide

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properties of ethyne

sickly sweet smell
non-polar so insoluble in water
burns with a yallow very smokey flame
in excess oxygen burns with a very hot flame

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uses of ethyne

oxy-acetylene burner used for cutting steel