Quotation from: General Science

Written by: Bertha M. Clark


The acid used to liberate the chlorine from the bleaching powder, and
the chlorine also, rot materials with which they remain in contact for
any length of time. For this reason, fabrics should be removed from
the bleaching solution as soon as possible, and should then be rinsed
in some solution, such as ammonia, which is capable of neutralizing
the harmful substances; finally the fabric should be thoroughly rinsed
in water in order that all foreign matter may be removed. The reason
home bleaching is so seldom satisfactory is that most amateurs fail to
realize the necessity of immediate neutralization and rinsing, and
allow the fabric to remain too long in the bleaching solution, and
allow it to dry with traces of the bleaching substances present in the
fibers. Material treated in this way is thoroughly bleached, but is at
the same time rotten and worthless. Chloride of lime is frequently
used in laundry work; the clothes are whiter than when cleaned with
soap and simple washing powders, but they soon wear out unless the
precaution has been taken to add an "antichlor" or neutralizer to the
bleaching solution.

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