Chemical News and Journal of Industrial Science, Tomy 131-132Chemical news office., 1925 |
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Strona 1
... addition to motor fuels . Since then , and especially in the last five years , some notice has been paid to it and its commer- cial use has been steadily increasing , until recent fatalities in connection with its manufacture put a ...
... addition to motor fuels . Since then , and especially in the last five years , some notice has been paid to it and its commer- cial use has been steadily increasing , until recent fatalities in connection with its manufacture put a ...
Strona 13
... addition to the leading English workers on photochemical action , many distinguished investigators from the continent and America have signified their intention of taking part in the proceedings and an attrac- tive programme of papers ...
... addition to the leading English workers on photochemical action , many distinguished investigators from the continent and America have signified their intention of taking part in the proceedings and an attrac- tive programme of papers ...
Strona 18
... addition of a few cc . of concen- trated nitric acid will aid in the oxidation . When the solution has become colourless or a pale straw colour , cool and dilute with a few cc . of cold distilled water and transfer to a 4 - inch ...
... addition of a few cc . of concen- trated nitric acid will aid in the oxidation . When the solution has become colourless or a pale straw colour , cool and dilute with a few cc . of cold distilled water and transfer to a 4 - inch ...
Strona 20
... addition of the soluble sulphide reagent . The method of analysis is based on the principle that the sulphate salts of iron , nickel , cobalt , and copper are soluble in dilute sulphuric acid containing alcohol , whereas the lead ...
... addition of the soluble sulphide reagent . The method of analysis is based on the principle that the sulphate salts of iron , nickel , cobalt , and copper are soluble in dilute sulphuric acid containing alcohol , whereas the lead ...
Strona 21
... addition being accompanied by the evolution of heat and a change in the colour of the mixture to brownish - red . A stirring was continued for some until all the hystazarin disappeared . was then sinall portion of the mixture placed ...
... addition being accompanied by the evolution of heat and a change in the colour of the mixture to brownish - red . A stirring was continued for some until all the hystazarin disappeared . was then sinall portion of the mixture placed ...
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