Chemical News and Journal of Industrial Science, Tomy 129-130Chemical news office., 1924 |
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Strona 4
... added to the water , which generally averages not more than one part per three million parts of water . This excessively small amount is sufficient to prevent the growth of all organic mat- ter , effecting what may be termed a semi ...
... added to the water , which generally averages not more than one part per three million parts of water . This excessively small amount is sufficient to prevent the growth of all organic mat- ter , effecting what may be termed a semi ...
Strona 7
... added in small quantities to an alloy steel it acts as a stabiliser or corrective against the unde- sirable qualities of the other elements pre- sent in that alloy . A recent investigator states that it is the most active and potent ...
... added in small quantities to an alloy steel it acts as a stabiliser or corrective against the unde- sirable qualities of the other elements pre- sent in that alloy . A recent investigator states that it is the most active and potent ...
Strona 34
... added . The liquid was then carefully neutralised by adding dilute am- monia drop by drop . Under these condi- tions a white precipitate which did not possess the faintest tinge of yellow was thrown down , thus showing that no ortho ...
... added . The liquid was then carefully neutralised by adding dilute am- monia drop by drop . Under these condi- tions a white precipitate which did not possess the faintest tinge of yellow was thrown down , thus showing that no ortho ...
Strona 39
... added the theoretical resorcinol in 30 ccs . of 2N caustic soda from a tap funnel . The first drop of coupler produced an immediate red precipitate , and this increased with the addition of further coupler . The solution was stirred a ...
... added the theoretical resorcinol in 30 ccs . of 2N caustic soda from a tap funnel . The first drop of coupler produced an immediate red precipitate , and this increased with the addition of further coupler . The solution was stirred a ...
Strona 40
... added bromine . drop bp drop from a burette charged with the latter . The liquid turned a deeper red , and then a brown colour , with the separa- tion of a fine precipitate . Drowning the mixture in water completed the precipita- tion ...
... added bromine . drop bp drop from a burette charged with the latter . The liquid turned a deeper red , and then a brown colour , with the separa- tion of a fine precipitate . Drowning the mixture in water completed the precipita- tion ...
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