# Sodium Hydroxide and Plastic

by Felix83
Tags: hydroxide, plastic, sodium
 P: 47 The drain-cleaning action of NaOH is mainly based on the heat it releases when it dissolves in water. If grease is the cause of the problem the heat should soften it and if hair is the problem the $$OH^{-}$$ should dissolve it. Incompatibility with plastic may be caused by the high temperatures involved, at room temperature pvc should be fine. At 100 degrees celcius that might not neseccarily be the case. btw, would $$[CHCl-CH_{2}]_n + nOH^- \xrightarrow{heat} [CH_2O-CH_2]_n + nCl^-$$ be possible?