Page:Proceedings of the Royal Society of London Vol 1.djvu/93

Rh man was dreadfully wounded, and was near losing his sight : by drop- ping the salt into sulphuric acid there is less danger of explosion at the beginning; but still the acid does not come over without decom- position. By cooling the ﬁrst receiver with ice, the author thinks that he has obtained the acid in the form of little orange-coloured octahe- dral crystals.

Nitric acid produces nearly the same phaenomena.

Muriatic acid decomposes the salt, and takes a part of the oxygen from the hyperoxygenized muriatic acid, and becomes oxygenized.

Phosphoric, tartareous, oxalic, arsenic, and citric acids decompose this salt with the help of heat.

Some attempts were made to combine diamond with oxygen, in the humid way, by means of this salt and this acid; but they did not prove successful. Caloric is mentioned as a considerable ingredient in this as in all hyperoxygenized muriates.

The proportions of the salt are,

Hyperoxygenized muriatic acid. . . . . . . . 58'3 Potash. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39'2 Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2'5

100'0

The second species is hyperoxygenized mnriate of soda. This salt Mr. Chenevix obtained pure by crystallizng in alcohol. It is de- composed by the same agents as the former species. It is deliques- cent. Its proportions are,

Hyperoxygenized muriatic acid. . . . . . . . 66'2

Soda. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29'6 Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4'2 100'0

A distinguishing character of the earthy hyperoxygenized muriates _ is their resemblance to their respective muriates, in point of solubi— lity. The author at ﬁrst despaired of being able to separate them from the muriates which accompany their formation ; but phosphate of silver afforded him the means. Phosphate of silver decomposes all simple muriates, and the hyperoxygenized mur'iates remain alone in solution. It was thus he obtained them pure enough for analysis. He found the following proportions in each salt:

Third species. Hyperoxygenized muriate of barytes.

Hyperoxygenized muriatic acid. . . . . . . . 47'0 Barytes ....... .. . . . . . . . . . 42-2 Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10'8

1 000

Fourth species. Hyperoxygenized muriate of strontia.

Hyperoxygenized muriatic acid. . . . . . . . . . 46 Strontia. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

100