The New Encyclopędia BritannicaEncyclopędia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 121
... carbon and nitrogen , called the carbon - nitrogen cycle , the nuclei of carbon and nitrogen are used as cata- lysts to transform hydrogen into helium ; protons are suc- cessively added to carbon or nitrogen until a helium nu- cleus can ...
... carbon and nitrogen , called the carbon - nitrogen cycle , the nuclei of carbon and nitrogen are used as cata- lysts to transform hydrogen into helium ; protons are suc- cessively added to carbon or nitrogen until a helium nu- cleus can ...
Page 133
... carbon black . Carbon black is one of the most important of the industrial chemical products . Total world production by the late 1970s was about 4,800,000 tons annually , with a large number of countries producing it . Carbon black is ...
... carbon black . Carbon black is one of the most important of the industrial chemical products . Total world production by the late 1970s was about 4,800,000 tons annually , with a large number of countries producing it . Carbon black is ...
Page 154
... carbon de- termines that the electrophilic proton finds it easier to at- tack that carbon rather than the central carbon atom . Addition by this mechanism can be accompanied by substitution and by rearrangement as alternative reac ...
... carbon de- termines that the electrophilic proton finds it easier to at- tack that carbon rather than the central carbon atom . Addition by this mechanism can be accompanied by substitution and by rearrangement as alternative reac ...
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