电石
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(电(diàn )石(shí ),电(diàn )石(shí ))
即(jí )碳(tàn )化(huà )钙(gài )。用(yòng )生(shēng )石(shí )灰(huī )与(yǔ )焦(jiāo )炭(tàn )溷(hùn )合(hé ),经(jīng )煅(duàn )烧(shāo )后(hòu )製(zhì )得(dé )。与(yǔ )水(shuǐ )反(fǎn )应(yīng )产(chǎn )生(shēng )乙(yǐ )炔(quē )气(qì ),可(kě )用(yòng )于(yú )照(zhào )明(míng )、焊(hàn )接(jiē )和(hé )金(jīn )属(shǔ )切(qiē )割(gē )。
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