Page:Proceedings of the Royal Society of London Vol 1.djvu/446

Rh is soluble with effervescence in nitric acid, and without effervescence in muriatic. It consists of 36 chlorine, and 64 copper.

In the other compound, which the author calls Cupranea (a term that, in the langnage proposed by his brother, implies a substance containing more acid), the proportions are 53 chlorine, and 47 copper. This compound is also best obtained from the common deliquescent muriate by slow evaporation, carried ultimately to dryness, at a tem- perature not exceeding 400° of Fahrenheit; for if greater heat be applied, one portion of chlorine is expelled, and what remains is re- duced to the state of cuprane and resin copper.

In addition to the foregoing, there is also a native muriate of copper, which, by the author’s analysis, consists of 73 brown oxide, 16-2 muriatic acid, and 108 water.

This compound has also been imitated by Proust; and Mr. J. Davy has also found various methods of making the same combination.

Tin also forms two compounds with chlorine, one already known under the name of the fuming liquor of Libavius, which the author calls Stannanea, most readily obtained by heating together an amal- gam of tin with corrosive sublimate; and a second analogous to the former, made by the substitution of calomel, and accordingly con- taining a less proportion of chlorine, and therefore called stannane.

The former contains 421 tin, with 57'9 chlorine. The latter 62‘22 tin, — 37'78 chlorine.

The only new and remarkable property of the liquor of Libavius observed by Mr. J. Davy, is its action upon oil of turpentine, which in one experiment was so violent as to occasion inﬂammation. In other instances oxide of tin seemed to be formed, and a tenacious oil. having a smell somewhat like camphor.

Beside these compounds of tin with chlorine alone, there is also a submuriate observed by Proust, containing about 704 grey oxide, 19 muriatic acid, and 106 Water.

With iron likewise, as well as with the former metals, there are two compounds with chlorine, which may either be formed by direct union with oxymuriatic gas, or may be obtained by evaporating to dryness the green and red muriates of iron. When thus deprived of water, they receive the name of Ferrane and F erranea. The former contains 46'57 iron, and 53'43 chlorine; the latter 35'1 iron, and 64'!) chlorine.

With other metals that have been tried by the author, such as manganese, lead, zinc, arsenic, antimony, and bismuth, he has not found that chlorine combines in more than one proportion.

The compound with manganese hears a red heat, in close vessels, without decomposition; but when it is heated in an open vessel. muriatic acid fumes are evolved, and oxide of manganese remains. It appears to consist of 54 chlorine, and 46 manganese.

The muriate of lead, known by the name of Horn lead, but called by the author Plumbane, was found to contain 74'23 lead, and 2577 chlorine.