The New Encyclopaedia Britannica, Volume 24Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 237
... containing two species . Commonly called golden seal or or- angeroot , its hairy stem usually has two leaves near the top and a single greenish - white flow- er . The yellow rootstalks are gathered for the alkaloid hydrastine used in ...
... containing two species . Commonly called golden seal or or- angeroot , its hairy stem usually has two leaves near the top and a single greenish - white flow- er . The yellow rootstalks are gathered for the alkaloid hydrastine used in ...
Page 242
... containing 28-35 percent by weight hydrogen chloride ( 18 ° -22 ° Baumé ) , commonly known as con- centrated hydrochloric acid . Anhydrous liquid hydrogen chloride is available , but because heavy and expensive containers are required ...
... containing 28-35 percent by weight hydrogen chloride ( 18 ° -22 ° Baumé ) , commonly known as con- centrated hydrochloric acid . Anhydrous liquid hydrogen chloride is available , but because heavy and expensive containers are required ...
Page 243
... containing 57 per- cent by weight hydrogen iodide boils at 127 ° C ( 261 ° F ) without change in composition ( azeotropic mixture ) . ← Hydriodic acid is used to prepare iodine salts ( iodides ) by reaction with metals or their ox ...
... containing 57 per- cent by weight hydrogen iodide boils at 127 ° C ( 261 ° F ) without change in composition ( azeotropic mixture ) . ← Hydriodic acid is used to prepare iodine salts ( iodides ) by reaction with metals or their ox ...
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19th century acid Africa agricultural ancient Arabic atoms became behaviour British Buddhist called centimetres central centre chemical China Chinese Christian church classification courtesy culture death dynasty early east eastern elected emperor England English French genus German Greek Han dynasty hexachord Hittite Hoa Hao Holy Hurrian hydrogen hydrogen chloride illus important Indian industrial influence island Japan Japanese Jewish king known Lake land language later literary London major ment metres modern mountain Museum Muslim National National Portrait Gallery North northern organization origin painting passim philosopher plant poems poet political port produced Province reactions reform region religious River Roman served social southern species sq km structure style Taoist text article covers text biography theory tion town tradition University West West Germany western World World War II