Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3748Chemical news office., 1932 |
Z wnętrza książki
Wyniki 1 - 3 z 4
Strona 102
... traces of free oil which can be obtained by extraction by carbon disulphide in a Soxhlet apparatus . The yield varies from 0.3 to 0.5 per cent . on the dried weight of the material . Traces of free naphthenic acids are also present in ...
... traces of free oil which can be obtained by extraction by carbon disulphide in a Soxhlet apparatus . The yield varies from 0.3 to 0.5 per cent . on the dried weight of the material . Traces of free naphthenic acids are also present in ...
Strona 103
... traces of ammonia , and sulphuretted hydrogen . ... 2.50 99 99 The asphaltenes are of a deep red colour , and have the appearance of a semi - solid asphaltic bitumen , with the exception that they are much more transparent to light than ...
... traces of ammonia , and sulphuretted hydrogen . ... 2.50 99 99 The asphaltenes are of a deep red colour , and have the appearance of a semi - solid asphaltic bitumen , with the exception that they are much more transparent to light than ...
Strona 110
... traces of hydrocarbon vapour are present in the tube in addition to the filling gas ( neon , in most of the experiments here described ) . Some effects of such traces of vapour on the characteristics of the tube are given . It is ...
... traces of hydrocarbon vapour are present in the tube in addition to the filling gas ( neon , in most of the experiments here described ) . Some effects of such traces of vapour on the characteristics of the tube are given . It is ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
12 per cent agreement amines ammonia amounted appearance aqueous bitumen brown burnt calcium carbon carried cent Chemical Chemical Industry chemistry chloroform clay clean Coal colour concentrated consist consumers contained described Dye Trust dyestuffs Economic effect elkerite evolved examination exchange Exports extract February fertilisers filtered firms fissures foreign formation formed four fucosite German give given Glucose heavy held hydrochloric acid hydrolysis industry INSTITUTE Italy January Keroles largely light Lignite lime liquor material ment metal methods million tons naphthenic acids natural nitrogen obtained osazone output period position potash Potash salts precipitate Presence properties proved quantities Rayon readily reduced regard remain reported rock salt Royal salts sample sand Science separated shares similar SOCIETY soda soluble solution sugars sulphate sulphuric acid swelled Syndicate tained tion trade turnover whole yielded