Science Vlog-Calcium Metal  and Water?
Channel: EnTroPy
Date: 2015-05-22

Science Vlog
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Video showing the reaction of calcium and water including pH test
with hibiscus extract/dye

Calcium metal is hazardous because of its sometimes-violent reactions with water and acids. Calcium metal is found in some drain cleaners, where it functions to generate heat and calcium hydroxide that saponifies the fats and liquefies the proteins (e.g., hair) that block drains. When swallowed calcium metal has the same effect on the mouth, esophagus and stomach, and can be fatal.