Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3750Chemical news office., 1932 |
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Strona 131
... fact that it turns copper white , another observation which was ex- tremely ancient , and probably gradually became recognised as a test . He was aware that arsenic combined with sulphur to forin realgar and orpiment , and although I ...
... fact that it turns copper white , another observation which was ex- tremely ancient , and probably gradually became recognised as a test . He was aware that arsenic combined with sulphur to forin realgar and orpiment , and although I ...
Strona 140
... fact that trichlorethylene is not inflammable is an additional asset in garages and other places where explosive petrol vapour is always present . In those garages and service stations where the de- greasing plants have already had a ...
... fact that trichlorethylene is not inflammable is an additional asset in garages and other places where explosive petrol vapour is always present . In those garages and service stations where the de- greasing plants have already had a ...
Strona 142
... fact that many discoveries of fundamental signifi- cance have been made since the third edition was published . It will be recalled that after a comprehensive historical sur- vey , Prof. Harden proceeds to give an account of the ...
... fact that many discoveries of fundamental signifi- cance have been made since the third edition was published . It will be recalled that after a comprehensive historical sur- vey , Prof. Harden proceeds to give an account of the ...
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