Chemical News and Journal of Physical Science, Tom 105Chemical news office., 1912 |
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Strona 1
... gave a list of seventeen lines in the ultra - violet spectrum of boron , their wave - lengths being : — 3957'9 2496.8+ 3941 * 7 2388.5 3829'3 2267'0 3824'5 2266 4 4 34513t 2088.8 3246'9 2088'4 2689'0 2066'2 2686.2 2497'7t 2064 6 In 1897 ...
... gave a list of seventeen lines in the ultra - violet spectrum of boron , their wave - lengths being : — 3957'9 2496.8+ 3941 * 7 2388.5 3829'3 2267'0 3824'5 2266 4 4 34513t 2088.8 3246'9 2088'4 2689'0 2066'2 2686.2 2497'7t 2064 6 In 1897 ...
Strona 2
... gave a spectrum in which no trace of copper lines could be seen , whereas a similar experiment in which melted boron was used in the gold clips showed decided lines of copper and traces of magnesium . Another pair of lines occurred in ...
... gave a spectrum in which no trace of copper lines could be seen , whereas a similar experiment in which melted boron was used in the gold clips showed decided lines of copper and traces of magnesium . Another pair of lines occurred in ...
Strona 3
... gave in the attempts to bring out additional boron lines . A RE - DETERMINATION OF THE DENSITY AND COEFFICIENT of LINEAR EXPANSION OF ALUMINIUM . * By F. J. BRISLEE , D.Sc. , & c . , Chief Chemist , British Insulated and Helsby Cables ...
... gave in the attempts to bring out additional boron lines . A RE - DETERMINATION OF THE DENSITY AND COEFFICIENT of LINEAR EXPANSION OF ALUMINIUM . * By F. J. BRISLEE , D.Sc. , & c . , Chief Chemist , British Insulated and Helsby Cables ...
Strona 7
... gave little or no clue to the identity of the compound obtained , it was necessary to obtain sufficient of the body to determine its elementary composition and its general properties in order to establish its identity . When , however ...
... gave little or no clue to the identity of the compound obtained , it was necessary to obtain sufficient of the body to determine its elementary composition and its general properties in order to establish its identity . When , however ...
Strona 9
... gave a -6.25 ° , whence [ a ] - 61.66 ° . The strychnine salt crystallises from chloroform and acetone in hair - like needles , melts about 130 ° , and has [ a ] D - 52.6 ° when dissolved in chloroform . The hydrogen phthalate obtained ...
... gave a -6.25 ° , whence [ a ] - 61.66 ° . The strychnine salt crystallises from chloroform and acetone in hair - like needles , melts about 130 ° , and has [ a ] D - 52.6 ° when dissolved in chloroform . The hydrogen phthalate obtained ...
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