Chemical News and Journal of Industrial Science, Tomy 131-132Chemical news office., 1925 |
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Strona 6
... present day study of atomic physics is cited as a line of research that is likely in the future to yield results of vast proportions , and as yet un- dreamed of . The report also calls attention to the value of industrial research - a ...
... present day study of atomic physics is cited as a line of research that is likely in the future to yield results of vast proportions , and as yet un- dreamed of . The report also calls attention to the value of industrial research - a ...
Strona 18
... present ) , thus greatly shortening the method . The presence of tartaric or citric acid and metals forming colourless salts with hydrogen sul- phide are not objectionable in the lead ex- tract . METHOD OF ANALYSIS FOR TRACES OF LEAD ...
... present ) , thus greatly shortening the method . The presence of tartaric or citric acid and metals forming colourless salts with hydrogen sul- phide are not objectionable in the lead ex- tract . METHOD OF ANALYSIS FOR TRACES OF LEAD ...
Strona 19
... present in the mixture , will pass into the lead extract and render the colour test worthless . Amounts of iron exceeding 0.0002 gram per 50 cc . of It was found that samples containing more solution , although reduced to the ferrous ...
... present in the mixture , will pass into the lead extract and render the colour test worthless . Amounts of iron exceeding 0.0002 gram per 50 cc . of It was found that samples containing more solution , although reduced to the ferrous ...
Strona 20
... present . Tartaric or citric acids may be present in the final colour test without detrimental effect , provided the solution is alkaline ( NII , OH ) . of ob- by Starch . Iron and aluminium , in the form gelatinous , insoluble ...
... present . Tartaric or citric acids may be present in the final colour test without detrimental effect , provided the solution is alkaline ( NII , OH ) . of ob- by Starch . Iron and aluminium , in the form gelatinous , insoluble ...
Strona 30
... present work is by a Japanese author of repute , is written in English , and is pro- fusely illustrated . In his introduction , the author says that he has made a series of re- searches on the subject of utilising magnesia for the ...
... present work is by a Japanese author of repute , is written in English , and is pro- fusely illustrated . In his introduction , the author says that he has made a series of re- searches on the subject of utilising magnesia for the ...
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