Spectrum Analysis -- Six Lectures1869 |
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Seite 49
... barium produce a green tint , and calcium compounds impart a red colour to flame . Here we have the beautiful non - luminous gas flame produced by the combustion of coal gas mixed with air , in what we know as the Bunsen burner . The ...
... barium produce a green tint , and calcium compounds impart a red colour to flame . Here we have the beautiful non - luminous gas flame produced by the combustion of coal gas mixed with air , in what we know as the Bunsen burner . The ...
Seite 51
... barium compounds . The common fireworks of the stage are further illustrations of the peculiar colours produced by certain chemical substances . I may imitate the red fire by igniting some chlorate of strontium in coal gas ; we must ...
... barium compounds . The common fireworks of the stage are further illustrations of the peculiar colours produced by certain chemical substances . I may imitate the red fire by igniting some chlorate of strontium in coal gas ; we must ...
Seite 57
... barium ( No. 11 ) , together with the two new metals rubidium and cæsium ( Nos . 3 and 4 ) , discovered by Bunsen , about which I shall speak in my next lecture ; also the spectra of thallium and indium ( Nos . 5 and 6 ) , two other new ...
... barium ( No. 11 ) , together with the two new metals rubidium and cæsium ( Nos . 3 and 4 ) , discovered by Bunsen , about which I shall speak in my next lecture ; also the spectra of thallium and indium ( Nos . 5 and 6 ) , two other new ...
Seite 58
... barium : suffice it to say that they each yield peculiar bright bands , perfectly characteristic of the metal in question , as is seen at once by reference to the drawings.1 1 For the purpose of enabling any observer unacquainted with ...
... barium : suffice it to say that they each yield peculiar bright bands , perfectly characteristic of the metal in question , as is seen at once by reference to the drawings.1 1 For the purpose of enabling any observer unacquainted with ...
Seite 59
... barium. Ka Rb MAP OF THE SPECTRA OF THE ALKALIES AND ALKALINE EARTHS . Luntu Α α Β a Cs السا Tl Na سسا Li Ca Sr C D E B F ð Ba B βα В H H1 10 20 30 40 50 60 70 80 90 100 110 140 Ba Και α Lia Ĉ Na Na TI α В FIG . 24 . Srs Rba Καβ LECT ...
... barium. Ka Rb MAP OF THE SPECTRA OF THE ALKALIES AND ALKALINE EARTHS . Luntu Α α Β a Cs السا Tl Na سسا Li Ca Sr C D E B F ð Ba B βα В H H1 10 20 30 40 50 60 70 80 90 100 110 140 Ba Και α Lia Ĉ Na Na TI α В FIG . 24 . Srs Rba Καβ LECT ...
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absorption alkaline Ångström apparatus appear Appendix bands barium bodies bright bands bright lines Bunsen cæsium calcium carbon chemical action Chemical Elements chloride coincident colour comet compounds contains continuous spectrum dark lines detected diagram didymium electric spark elements emitted employed examination exhibits existence experiments eyepiece flame Fourth Series Fraunhofer Fraunhofer's gaseous gases give green heated Huggins hydrochloric acid hydrogen hydrogen line incandescent inch instrument intensity iron Kirchhoff lecture lens light lithium luminous magnesium Major Tennant measures metallic lines milligramme millimetre motion nebula nitrogen object-glass observed obtained oxygen pass peculiar Phil placed plate platinum portion position potassium presence prism produced rays reaction red line refracting refrangible rubidium salt scale seen Sirius slit soda sodium sodium line solar atmosphere solar spectrum spectra spectroscope spectrum analysis stellar strontium substance sun's telescope temperature thallium tube vapour violet visible volatile whilst wire