BLEACHING MATERIALS, the various substances used in bleaching or fading out coloring matters from cotton, linen, wool, silk or other fabrics. They embrace chloride of lime or bleaching powder, chloride of soda, and other hypochlorites, hydrogen peroxide (or dioxide), sodium and other peroxides (or dioxides) ; bisulphites of soda, lime, etc., chlorine, sulphur dioxide, lime-sulphur solu tions, etc. The United States Department of Commerce reports 51 establishments engaged in the manufacture of bleaching materials for sale in the United States in 1914. The total value of products made for sale in 1914 was $4,964,403, an increase of 54.4 over the cor responding figure for 1909.
Hypochlorites constitute the most import ant class, the production in 1914 aggregating 222,152,000 pounds, valued at $2,578,269, and ex ceeding that of 1909 by 90.2 per cent in quantity and 44.3 per cent in value. This class con sists principally of chloride of lime, but also includes relatively small quantities of chloride of soda and other hypochlorites. A large amount of these products is made electrically. Of the establishments reported for 1914, four were located in New York, two in Michigan, and one each in New Jersey, Pennsylvania and West Virginia.
Hydrogen Peroxide, or Hydrogen Diox ide (H2O). was produced to the extent of 32,594,807 pounds, valued at $1,303,596. There are nine establishments engaged in this branch of the industry in New York, three in New Jersey, two in Illinois, two in Missouri, and one each in California, Connecticut, Minne sota and Pennsylvania.
Bisulphites of soda, lime, etc., are manu factured by 14 establishments. The produc tion in 1914 was 26,346,000 pounds, valued at $243,559, a decrease of 16.9 per cent in quantity, but an increase of 7.7 per cent in value as compared with the output of 1909. The 14 establishments are distributed as fol lows: five in Massachusetts, two each in New Jersey and Pennsylvania, and one each in Delaware, Missouri, New York, Ohio and Wisconsin.
The production of chlorine in 1914 was 12,217,000 pounds, valued at $472,836, by seven establishments, of which three were located in New York, two in Michigan, and one each in Georgia and Illinois. The output of other bleaching materials, including sodium perox ide, sulphur dioxide, lime-sulphur solutions, etc., in 1914 was valued at $W,143.