Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3748Chemical news office., 1932 |
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Strona 100
was filtered off , redissolved in water , and re- precipitated twice by alcohol . The precipi- tate was then white in colour , and the aqueous solution gave a neutral reaction . Upon hydrolysis in a 5 per cent . by weight sulphuric acid ...
was filtered off , redissolved in water , and re- precipitated twice by alcohol . The precipi- tate was then white in colour , and the aqueous solution gave a neutral reaction . Upon hydrolysis in a 5 per cent . by weight sulphuric acid ...
Strona 101
... filtered through a 40 - mesh gauze , which passed most of the sand and retained the fucosite , still mixed with some of the larger particles of sand . The mixture was placed in a glass tube 1 metre long and 4 cm . diam . , at the bottom ...
... filtered through a 40 - mesh gauze , which passed most of the sand and retained the fucosite , still mixed with some of the larger particles of sand . The mixture was placed in a glass tube 1 metre long and 4 cm . diam . , at the bottom ...
Strona 102
... filtered and evaporated down on the water bath , the liquors smell- ing strongly of burnt sugar . Some needles separated out after cooling overnight and were hand - picked next morning . These were carefully recrystallised from about 10 ...
... filtered and evaporated down on the water bath , the liquors smell- ing strongly of burnt sugar . Some needles separated out after cooling overnight and were hand - picked next morning . These were carefully recrystallised from about 10 ...
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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