Quotation from: General Science

Written by: Bertha M. Clark


Materials which are not exposed directly to an intense and prolonged
illumination retain their whiteness for a long time, and hence dress
materials and hats which have been bleached with sulphurous acid
should be protected from the sun's glare when not in use.


223. The Removal of Stains. Bleaching powder is very useful in the
removal of stains from white fabrics. Ink spots rubbed with lemon
juice and dipped in bleaching solution fade away and leave on the
cloth no trace of discoloration. Sometimes these stains can be removed
by soaking in milk, and where this is possible, it is the better
method.

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