Chemical News and Journal of Industrial Science, Tomy 121-122Chemical news office., 1920 |
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Strona 4
... sulphuric acid . The bromine thus set free removed all iodine that may have been present . This evaporation was repeated three times . In order to remove organic matter the dry bromide was melted in small quantities in a platinum ...
... sulphuric acid . The bromine thus set free removed all iodine that may have been present . This evaporation was repeated three times . In order to remove organic matter the dry bromide was melted in small quantities in a platinum ...
Strona 27
... sulphuric acid . After standing half an hour the charcoal was filtered off and washed and the amount of acid remaining in filtrate and washings determined by using standard caustic soda . The HCl adsorbed was determined by adding to a ...
... sulphuric acid . After standing half an hour the charcoal was filtered off and washed and the amount of acid remaining in filtrate and washings determined by using standard caustic soda . The HCl adsorbed was determined by adding to a ...
Strona 37
... sulphuric acid , in concentrated form , applied to the skin or taken internally , will at once disintegrate flesh . Its action is then that of a corrosive agent , its destructive influence rest- • Definition - Poison : " Any substance ...
... sulphuric acid , in concentrated form , applied to the skin or taken internally , will at once disintegrate flesh . Its action is then that of a corrosive agent , its destructive influence rest- • Definition - Poison : " Any substance ...
Strona 40
... sulphuric anhy- dride . But his chief work was in organic chemis- try . He was the first to discover and describe the quinones , to elucidate the chemical structure of naphthalene , to find theobromine in chocolate . Nicolai ...
... sulphuric anhy- dride . But his chief work was in organic chemis- try . He was the first to discover and describe the quinones , to elucidate the chemical structure of naphthalene , to find theobromine in chocolate . Nicolai ...
Strona 54
... sulphuric acid bulb which depleted it of moisture . The air then entered the weighed potash bulb , from which it took up some moisture and which it then depo- sited in the weighed soda - lime tube which was guarded against the moisture ...
... sulphuric acid bulb which depleted it of moisture . The air then entered the weighed potash bulb , from which it took up some moisture and which it then depo- sited in the weighed soda - lime tube which was guarded against the moisture ...
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