The percent of available chlorine in commercial sample of bleaching powder is usually $33-38\%$. This is due to

Q. Available chlorine in a good sample of bleaching powder is:

Q. The percentage of available chlorine in a sample of bleaching powder, $CaOC{l}_2.2H_{2}O$, is:

Q. The estimation of available chlorine in bleaching powder is done by

Q. What can be maximum percentage of the available Chlorine possible in a given bleaching powder sample?

Q. Bleaching powder is also called calcium chlorohypochlorite. It is a pale yellow powder and has a strong smell of chlorine. On account of formation of nascent oxygen it behaves as oxidising agent and bleaching agent. The amount of chlorine obtained from a sample of bleaching powder with excess of dilute acids or $C{O}_2$ is called available chlorine. The maximum percent of available chlorine comes to $49\%.$

$CaOC{l}_2+2C{H}_{3}COOH\to (C{H}_{3}COO{)}_{2}Ca+C{l}_2+H_{2}O$

$2Kl+C{l}_2\to 3KCl+l_2$

$l_2+2N{a}_2{S}_2{O}_3\to N{a}_2{S}_4{O}_6+2Nal$