Muriat of Potash. 227 
the following experiments I shall use the term ox- 
ygenated muriat, when speaking of the salt formed 
during the distillation, and on cooling the lixivium 
after being saturated with the gas. 
EXPERIMENT I. 
One part of the oxygenated muriat of potash 
required about seventeen parts of water, at the tem- 
perature of 60°, to dissolve it; whilst five parts of 
boiling water dissolved. two of the salt. Repeat- 
ed solutions did not appear to injure but rather 
to increase its detonating property. The crystals 
became much whiter ; and a quantity of the earthy 
matter, before mentioned, was separated at every 
fresh crystallization. 
EXPERIMENT II, 
A quantity of this sal was put into a bottle and 
placed in a situation much exposed to the light: after 
being kept there more than twelve months, it did 
not appear to have lost any part of its detonating 
property. This fact is contrary to Chaptal’s asser- 
tion, that the mere impression of light is sufficient to 
decompose it.* 
EXPERIMENT III. 
Water saturated with this salt was exposed to the 
light, for several months, without appearing to be 
* Elements of Chemistry, I. 250." 
