The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 126
... industry is in part shaped by custom rather than by logic . The petroleum industry is usually thought of as separate from the chemical industry , for in the early days of the industry in the 19th century crude oil was merely subjected ...
... industry is in part shaped by custom rather than by logic . The petroleum industry is usually thought of as separate from the chemical industry , for in the early days of the industry in the 19th century crude oil was merely subjected ...
Page 127
... industry . Divisions of the chemical industry The beginning of the chemical industry might be taken either as the historical beginning or as the raw materials that are to undergo transformation . But to begin with each of the raw ...
... industry . Divisions of the chemical industry The beginning of the chemical industry might be taken either as the historical beginning or as the raw materials that are to undergo transformation . But to begin with each of the raw ...
Page 138
... industry on a smaller scale . World production by the late 1970s was not much more than 11,500 tons annually . The largest producer is Japan , where iodine is obtained from seaweed . Seawater contains only about 0.05 parts per million ...
... industry on a smaller scale . World production by the late 1970s was not much more than 11,500 tons annually . The largest producer is Japan , where iodine is obtained from seaweed . Seawater contains only about 0.05 parts per million ...
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