Cyanogen

A second commentator suggested it might have been a piece of a comet; comets often contain cyanogen, which at low levels could cause the symptoms described. ❋ Ewillett (2007)

Last month, its instruments showed that the comet was emitting a toxic gas called cyanogen whose output increased fivefold over an eight-day period before slowly decreasing again. ❋ Robin McKie (2010)

Jets spewing from the comet's nucleus contain cyanogen (CN: a poisonous gas found in many comets) and diatomic carbon (C2). ❋ Oldhead1 (2009)

False alarm: The wispy tail of the comet couldn't penetrate Earth's dense atmosphere; even it if had penetrated, there wasn't enough cyanogen to cause real trouble. ❋ Oldhead1 (2009)

In 1910, many people panicked when astronomers revealed Earth would pass through the cyanogen-rich tail of Comet Halley. ❋ Oldhead1 (2009)

I think we can get the formula out of him for curing this cyanogen damage. ❋ DAFYDD AB HUGH (2008)

Supposedly the cancer cells would gobble it up, free the cyanogen portion of the molecule and be poisoned. ❋ Unknown (2006)

"Heat it -- to ninety, or a hundred degrees -- it gives off a deadly gas -- cyanogen." ❋ Unknown (2003)

Leaching is another important process for cyanogen reduction during cassava processing. ❋ Unknown (1992)

But the tail's mostly ammonia, methane, carbon dioxide, water vapour, cyanogen - ' ❋ Clarke, Arthur C. (1972)

These particles are molecules, according to the definition laid down, just as C_2 and N_2; but there is this essential difference, that the specific gravity of cyanogen gas, 26, coincides with the molecular weight, while the assumed molecular weight, N_2 = 28, is twice as great as the specific gravity of the gas, N = 14. ❋ Various (N/A)

The theory requires two vols. of cyanogen and two vols. of chlorine, that is, the unit of numbers, to enter into reaction and to produce two vols. of the compound. ❋ Various (N/A)

It is true beyond doubt that the molecular weight of cyanogen chloride is contained in two volumes, in spite of the hypothesis, not on the ground of it; two vols. + two vols., producing four vols.; two vols. could, theoretically, contain only half the unit of numbers, and there seems to be no escape from the following general conclusions: ❋ Various (N/A)

As he considers the non-condensation to be natural in the case of cyanogen and chlorine, the condensation of two vols. of HCl + two vols. of H_3N to two vols. of NH_4Cl ought to appear to him unnatural. ❋ Various (N/A)

The most important part of my argument is based on the evidence afforded by the compound cyanogen; and Mr. Greene, directing his attention to this subject in the first place, states that because cyanogen combines with hydrogen or with chlorine, without diminution of volumes, I have concluded that the hypothesis falls to the ground. ❋ Various (N/A)

They also employed isomeric mixtures of the gases; methylic ether, cyanogen, hydrogen, acetylene, and other gases were experimented upon, and the general conclusions are as follows: 1. ❋ Various (N/A)

-- Formation of crystals of iodide of cyanogen -- Experiment with ammoniacal amalgam. ❋ Various (N/A)

The assumed molecular weight of nitrogen is twice as great as the specific gravity, but the molecular weight and the specific gravity of cyanogen are identical; the number of molecules contained in one volume of cyanogen must, therefore, necessarily be twice as great as the number contained in one of nitrogen, and this is fully and completely borne out by the chemical facts. ❋ Various (N/A)