1.58 Mr. Chenevix's Observations and Experiments 
ALKALINE AND EARTHY HYPEROXYGENIZED MURIATES. 
Generic Characters. 
Hyperoxygenized muriates are formed by passing a current 
of oxygenized muriatic acid through the basis, dissolved or 
suspended in water, as in the formation of the last mentioned 
genus. Their first formation is owing to the separation of the ele- 
ments of an oxygenized muriate, into hyperoxygenized muriate 
and simple muriate ; from which latter, they may be separated 
by crystallization, or by another process, which I shall mention, 
in treating of the earthy hyperoxygenized muriates. By simple 
trituration, they scintillate, with noise. They are decomposed by 
a low red heat ; and give out a considerable quantity of oxygen, 
as they become simple muriates. They cannot be brought down, 
By any means that I have tried, to that diminished state of oxy- 
genizement, which would constitute oxygenized muriates. They 
inflame all combustible bodies with violence, as is well known. 
They are soluble in water ; many of them, in alcohol ; and some 
are deliquescent. The acid is expelled, with particular pheno- 
mena, by sulphuric, nitric, and muriatic acids, without heat; 
and, a little below a boiling heat, by phosphoric, oxalic, tar- 
tareous, citric, and arsenic acids : but they are not acted upon 
by benzoic, acetic, acetous, boracic, prussic, or carbonic acids. 
Those vegetable acids which are powerful enough to decompose 
them, give out, towards the end, a gas of a peculiar nature, 
which has not so much smell as oxygenized muriatic acid gas, 
but which affects the eyes in an extraordinary manner, and 
promotes an uncommon and rather painful secretion of tears. 
I have not yet examined this gas, as there was invariably an 
inflammation of the mixture, with explosion and rupture of the 
