332 Dr Turners Analysis of Radiated C destine. 
c. The earthy carbonates dissolved completely in muriatic acid, 
and the solution was evaporated to perfect dryness. Water took 
up every thing but a little submuriate of iron, and the neutral 
solution was set to crystallise by spontaneous evaporation. The 
tabular crystals of muriate of baryta were now seen in consider- 
able number, though less in quantity than the prisms of the 
strontian salt. The mixed crystals were digested in strong al- 
cohol. The muriate of baryta, which remained on the filtre, was 
redissolved in water, and made to crystallise again ; by which 
measure I was satisfied that the muriate of strontian had been 
wholly removed. The baryta was precipitated by solution of 
Glauber- salt, and the sulphate of baryta, after calcination^, 
weighed 0.8335, indicating 0.5502 of pure baryta. 
d. The alcoholic solution was diluted with water, and the alco- 
hol removed by distillation. The absence of the muriate of ba- 
ryta was shown, by allowing the solution to crystallise. To the 
heated solution of muriate of strontian pure ammonia was add- 
ed, when oxide of manganese, with a little iron, separated. Af- 
ter rapid filtration the strontian was precipitated, while still hot, 
by carbonate of ammonia. The carbonate of strontian collected, 
and sharply dried, weighed 2.602, of which 0.012 was carbo- 
nate of lime. Pure carbonate of strontian amounted therefore to 
12.59, indicating 1.817 of the pure earth. 
e. The carbonate of strontian was dissolved in pure nitric acid, 
and the solution brought to perfect dryness. It was now digest- 
ed in the strongest alcohol, which dissolved a minute portion of 
the nitrate of lime. The lime was separated by oxalate of pot- 
assa, and 0.007 of pure lime obtained, equal to 0.012 carbonate 
of lime, to be subtracted from the carbonate of strontian. 
A second analysis gave a result very nearly corresponding 
with the preceding. On this occasion, the iron and manganese 
were separated, in the first instance, from the combined muriates 
of baryta and strontian, by pure ammonia. The iron was sepa- 
rated from the manganese by succinate of ammonia, and amount- 
ed, when calculated as the protoxide, to 0.168 per cent. The 
manganese, as well that obtained from the earthy muriates, as 
that held in solution by the soda, amounted to 0.15 per cent, of 
the deutoxide. 
