ig8 Dr . Marcet on the specific gravity and temperature 
We are now enabled to estimate the quantity of muriate of 
soda. For the quantities of the muriatic acid already as- 
signed to the earthy bases, being as follows, viz : 
in combination with lime - 0.302 grs. ") 
" }• 1.799 grs., and 
— — — - with magnesia - 1.497 J ” 
the total quantity of muriatic acid being 8 grs. there will 
remain 6 . 2 grs. of the acid in combination with soda. But 
dry muriate of soda consists of 4 6.6 parts of muriatic acid to 
53.4 of soda ;* and consequently the 6 . 2 grs. of muriatic acid 
= 7.1 grs. soda = 13.3 grs. muriate of soda. 
It appears therefore that the saline and earthy substances 
contained in 500 grs. of the specimen of sea water under exa- 
mination, taken in the uncombined state, are 
Muriatic acid 
8 gr 
Sulphuric acid 
1.27 
Lime 
C).314 
Magnesia 
1.08 
Soda 
8.1 l'f 
iS-774. 
And the same saline ingredients, in their state of combina- 
tion, and supposed free from water, will be 
Muriate of soda 
13-3 
Sulphate of soda 
2 -33 
Muriate of lime 
0.616 
Muriate of magnesia 
^•577 
18.823 grs. 
* Scale of Chemical Equivalents. 
f Viz. 1. 01 with the sulphuric acid, and 7.1 with the muriatic. 
