Chemical News and Journal of Industrial Science, Tomy 127-128Chemical news office., 1923 |
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Strona 2
... sodium sulphate , was distilled : 70 grm . First fraction , B.p. , 174-270 ° Second fraction , B.p. , above 270 ° 35 grm . Two fractions were fractionated on metal- lic sodium , and the fraction boiling at 173- 175 ° was collected . The ...
... sodium sulphate , was distilled : 70 grm . First fraction , B.p. , 174-270 ° Second fraction , B.p. , above 270 ° 35 grm . Two fractions were fractionated on metal- lic sodium , and the fraction boiling at 173- 175 ° was collected . The ...
Strona 3
... sodium , was all distilled out between 165-175 ° . It was purified by re- peated distillation with metallic sodium . The purified substance d25 = 0.8542 : n25 1.4743 ; M.R. = 44.41 , was analysed : t gave C 88.37 ; H = 11.34 ; ( CH1 re ...
... sodium , was all distilled out between 165-175 ° . It was purified by re- peated distillation with metallic sodium . The purified substance d25 = 0.8542 : n25 1.4743 ; M.R. = 44.41 , was analysed : t gave C 88.37 ; H = 11.34 ; ( CH1 re ...
Strona 4
... sodium bicarbonate for the por- phyroxin test . To the remainder sodium hydroxide was added , and it was then ex- tracted first with ether , next with chloro- form to remove other alkaloids , and thirdly with a mixture of ethyl acetate ...
... sodium bicarbonate for the por- phyroxin test . To the remainder sodium hydroxide was added , and it was then ex- tracted first with ether , next with chloro- form to remove other alkaloids , and thirdly with a mixture of ethyl acetate ...
Strona 6
... sodium bicarbonate for the por- phyroxin test . To the remainder sodium hydroxide was added , and it was then ex- tracted first with ether , next with chloro- form to remove other alkaloids , and thirdly with a mixture of ethyl acetate ...
... sodium bicarbonate for the por- phyroxin test . To the remainder sodium hydroxide was added , and it was then ex- tracted first with ether , next with chloro- form to remove other alkaloids , and thirdly with a mixture of ethyl acetate ...
Strona 11
... sodium chloride , part of the sodium atoms can be replaced by potas- sium , and part of the chlorine by bromine ; but the mixed crystal ( Na , K ) ( Cl , Br ) thus obtained still appears to obey the rule that the number of metallic ...
... sodium chloride , part of the sodium atoms can be replaced by potas- sium , and part of the chlorine by bromine ; but the mixed crystal ( Na , K ) ( Cl , Br ) thus obtained still appears to obey the rule that the number of metallic ...
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