C. Klingelhofer 1, in the course of which they mention that they find water vapour to have no effect on the length of the chain reaction induced in a mixture of hydrogen and chlorine by chlorine ...
Using hydrogen peroxide is one of the most effective ways ... of cold water can help prevent the stain from drying or setting. Chlorine bleach can make blood stains worse instead of better ...
It’s not like etching with hydrochloric acid and peroxide is anything new ... suggesting that the etching process would release chlorine gas, or that ferric chloride is far safer and cleaner.