Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 1
... Grms . TANTALUM , NIOBIUM , AND TITANIUM : OBSERVATIONS ON . * THESE BODies . By W. B. GILES , F.I.C. FROM the time of the discovery of niobium by Hatchett in 1801 and of tantalum by Ekeberg in 1802 , several methods have been proposed ...
... Grms . TANTALUM , NIOBIUM , AND TITANIUM : OBSERVATIONS ON . * THESE BODies . By W. B. GILES , F.I.C. FROM the time of the discovery of niobium by Hatchett in 1801 and of tantalum by Ekeberg in 1802 , several methods have been proposed ...
Strona 2
... Grms . Grms . First fusion . 3 ΙΟ 21766 Acids remained white . Second fusion 2 0.840 Third fusion I 2 0'047 Residue Total .. 10 6 18 39653 tested this process , since the introduction of sodium salts into materials containing tantalic ...
... Grms . Grms . First fusion . 3 ΙΟ 21766 Acids remained white . Second fusion 2 0.840 Third fusion I 2 0'047 Residue Total .. 10 6 18 39653 tested this process , since the introduction of sodium salts into materials containing tantalic ...
Strona 6
... grms . of the compound taken , add 156 cubic centimetres of alcohol ( at least 98 per cent ) if the compound ... grms . of sodium if the compound contains chlorine , or 8.5 grms . of sodium if the compound contains bromine , or 55 grms ...
... grms . of the compound taken , add 156 cubic centimetres of alcohol ( at least 98 per cent ) if the compound ... grms . of sodium if the compound contains chlorine , or 8.5 grms . of sodium if the compound contains bromine , or 55 grms ...
Strona 8
... grms . ) in each case because but a limited amount of each sample was available . A higher degree of accuracy may be secured by using 10 grms . of soil for each estimation instead of 2.5 gims . Summary . A weighed amount of dry soil is ...
... grms . ) in each case because but a limited amount of each sample was available . A higher degree of accuracy may be secured by using 10 grms . of soil for each estimation instead of 2.5 gims . Summary . A weighed amount of dry soil is ...
Strona 22
... grms . to 50 grms . of the mixture used in all cases . The mixtures were made in the following proportions : - ( 1 ) Al2O3 + 4A ] ; ( 2 ) 2A1 + 3CaO ; ( 3 ) 2Al + 3MgO ; ( 4 ) 3Ca + Al2O3 ; ( 5 ) Ca + MgO ; ( 6 ) Mg + CaO ; ( 7 ) 3Mg + ...
... grms . to 50 grms . of the mixture used in all cases . The mixtures were made in the following proportions : - ( 1 ) Al2O3 + 4A ] ; ( 2 ) 2A1 + 3CaO ; ( 3 ) 2Al + 3MgO ; ( 4 ) 3Ca + Al2O3 ; ( 5 ) Ca + MgO ; ( 6 ) Mg + CaO ; ( 7 ) 3Mg + ...
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