Abstract
WE experimented with the absorption spectrum of gaseous mercuric sulphide. The substance was introduced into a quartz absoiption tube which could be heated to about 400° C. by electrical means, steps being taken to prevent condensation on the plane quartz ends. The copper and aluminium-under-water sparks were used as sources of continuous radiation. The sulphide seems to decompose very readily, and we obtained evidence only of the presence of Hg vapour by the resonance line 2536 A. and of S2 and, at high pressures, of S8, by the sulphur bands, which we identified without much difficulty. At higher pressures the overlying continuum becomes very prominent, and the banded structure disappears, as is usually the case with a gas under such conditions.
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Proc. Roy. Soc., A, 143, 438; 1934.
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Ber., 12, 1262; 1879. See also Scott, Proc. Roy. Soc. Edin., 14, 410; 1887.
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IREDALE, T., GIBSON, K. Absorption Spectrum of Mercuric Sulphide. Nature 133, 985 (1934). https://doi.org/10.1038/133985a0
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DOI: https://doi.org/10.1038/133985a0
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