12.10.25

Straw and Clothes Bleaching.

The Journal of the Board of Arts and Manufactures for Upper Canada, June 1867

Bolley states that the hypo-chlorite of magnesia bleaches much more quickly than that of lime, with the further advantage in the case of straw goods, that it bleache directly as well as quickly, without first coloring the straw brown as does the hypo-chlorite of lime. Magnesia being a much weaker base than lime, parts with the chlorine much more quickly. The great bleacher is oxygen, and in the form of ozone, nothing oxidable can withstand it. Ozone is said to be rapidly formed when turpentine is exposed to the air, and the writer who mentions this (in a German periodical) recommends laundresses to add to their rinsing water a little pure rectified oil of turpentine mixed (which can be done only by distillation) with twice as much strong alcohol. No smell will remain in the fabric after drying.

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