Chemical News and Journal of Industrial Science, Tomy 131-132Chemical news office., 1925 |
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Strona 2
... mixture is decomposed by the care- ful addition of cold water , adding small por- tions at a time and shaking between addi- tions . The final mixture is distilled with steam . The receiver should be closed and equipped with an outlet ...
... mixture is decomposed by the care- ful addition of cold water , adding small por- tions at a time and shaking between addi- tions . The final mixture is distilled with steam . The receiver should be closed and equipped with an outlet ...
Strona 19
... Mixture . - To 500 cc . of water add 50 cc . of strong sul- phuric acid and from 100 to 200 cc . of alcohol , 95 % . Make up to a litre with water . Potassium Cyanide . - 10 % solution . Colourless Ammonium Sulphide , or NaS or HS water ...
... Mixture . - To 500 cc . of water add 50 cc . of strong sul- phuric acid and from 100 to 200 cc . of alcohol , 95 % . Make up to a litre with water . Potassium Cyanide . - 10 % solution . Colourless Ammonium Sulphide , or NaS or HS water ...
Strona 21
... mixture to brownish - red . A stirring was continued for some until all the hystazarin disappeared . was then sinall portion of the mixture placed under a microscope and a drop of glacial acetic acid added . When no yellow crystals of ...
... mixture to brownish - red . A stirring was continued for some until all the hystazarin disappeared . was then sinall portion of the mixture placed under a microscope and a drop of glacial acetic acid added . When no yellow crystals of ...
Strona 49
... mixture appeared , which changed finally to brown . The mixture was then warmed to 40 ° C. , and again cooled in ice . The addition of a large quantity of ether caused yellow crystals to be deposited . This diazotisation product was ...
... mixture appeared , which changed finally to brown . The mixture was then warmed to 40 ° C. , and again cooled in ice . The addition of a large quantity of ether caused yellow crystals to be deposited . This diazotisation product was ...
Strona 60
... mixtures of Na ,, SiO2 , Ca Si O , and Si O ,. The two components Na , Si O , and Ca Si O , crystallised readily , as ... mixture of wollastonite and a glass containing approx- imately 15 per cent . CaO , 67 per cent . SiO2 . The melting ...
... mixtures of Na ,, SiO2 , Ca Si O , and Si O ,. The two components Na , Si O , and Ca Si O , crystallised readily , as ... mixture of wollastonite and a glass containing approx- imately 15 per cent . CaO , 67 per cent . SiO2 . The melting ...
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