The New Encyclopaedia Britannica, Volume 23Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 904
... present as a reddish - brown stain on washed fabrics or container walls . The dissolved calcium and magnesium react with the higher fatty acids in the soap to form an insoluble gelatinous curd that is difficult to remove from the ...
... present as a reddish - brown stain on washed fabrics or container walls . The dissolved calcium and magnesium react with the higher fatty acids in the soap to form an insoluble gelatinous curd that is difficult to remove from the ...
Page 905
... present in hard water are removed is known as soften- ing . Water may be softened by the addition of ammonia , borax , or trisodium phosphate together with sodium carbonate ( washing soda ) , which precipitate the calcium as car- bonate ...
... present in hard water are removed is known as soften- ing . Water may be softened by the addition of ammonia , borax , or trisodium phosphate together with sodium carbonate ( washing soda ) , which precipitate the calcium as car- bonate ...
Page 926
... present Maumee , Ohio ( Aug. 20 , 1794 ) . He was named secretary of the Northwest Territory in 1798 and sent to Con- gress as a territorial delegate the following year . In May 1800 Harrison was appointed governor of the newly created ...
... present Maumee , Ohio ( Aug. 20 , 1794 ) . He was named secretary of the Northwest Territory in 1798 and sent to Con- gress as a territorial delegate the following year . In May 1800 Harrison was appointed governor of the newly created ...
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