18 i 3 v] On the. Oxijmuriate of Lime, i ^ 



But as the lime is united to the acids in separate portions, it 

 inay be proper to exhibit the part belonging to each acid, as under ; 



•65 Muriatic acid 7 ^ ^.35 Muriate of lime. 

 ■70 Lime 3 



1-45 Oxyni. acid .J ^ Oxym. lime. 

 1*15 Lime .3 



It is further observable, that, the oxymuriatic acid and lime 

 are combined in the ratio of 29 to 24 nearly ; which shows that 

 the combination is a simple one, or one atom of acid to ond 

 of lime. 



Returning now to the dry oxymuriate of lime, we find it 

 iliust be constituted of, 



13-5 Muriate of lime. 

 26 Oxymuriate of lime, 

 18-5 Lime. 

 42 Water- 



loo 



from the manner in which the dry oxymuriate of lime is 

 made, we are compelled to consider the compound as a species 

 of saturation of the lime and acid, and must therefore suppose 

 the whole of the lime (except what is in the state of muriate) to 

 be combined with the oxymuriatic acid. This gives the dry 

 compound as under : 



13*5 Muriate of lime, 

 io^ Lhn^*^^^^^ "^^'^ Oxymur. or suboxymurlate oflime, 

 42 Wateri 



100 



From this it appears, that the lime is more than sufBcient to 

 afford two atoms for one of the oxymuriatic acid. Hence we 

 may infer, that this is the saturation which is produced by th^ 

 process of making dry oxymuriate of lime ; namely, when each 

 atom of the acid is combined with two atoms of lime. So that 

 the dry salt may be denominated the siLhoxymuriate of lime ^ 

 When dissolved in water^ one half of the lime is deposited, and 

 a solution of simple oxymuriate is obtained* 



Age diminishes the value of a solution of oxymuriate of lime, 

 by converting it partially into muriate ; but this effect is also 

 produced in degree on the dry salt, when kept in a bottle, t 

 have by me a quantity of the article presented me by Mr. 

 Tennant, the manufacturer, in I8O7. It was at first, as nearly 

 as I can ascertain, of the same value as that analysed above, 



B 2 



