Mr. T. S. Flint on a new Titaniferous Mineral. 38 
heat, and then thrown down: by ammonia. The whole amount 
of titanic acid after ignition == -132 grammes. 
»C. The filtrate was then evaporated to a small bulk, ( Erie 
which operation no more titanic acid fell,) transferred to a plati- 
num capsule, and digested for some hours with an excess of pure 
-'The mixture was then filtered, and the filtrate being 
neutralized by hydrochloric acid, carbonate of ammonia was add- 
ed to precipitate the alumina, which, when ignited, weighed -0692 
ae 
_D. The residue of iron from thé potassa solution, was dissolved 
in hydrochloric acid and precipitated by ammonia ; after ignition 
it weighed -074 grammes. , The excess of eight over that of 
_ the iron previously obtained, (= ‘018 grammes, ) was owing to a 
little titamic acid not precipitated by boiling, and must consequent- 
iy be added to the weight of the acid obtained. 
__E.. The ammonical filtrate from B was treated with oxalate of 
ammonia, ‘a precipitate of oxalate of lime fell, which was con- 
verted into sulphate, and was equal to ‘013 grammes of pure lime. 
» EF. The filtrate from E, was concentrated and mixed. with 
phosphate of soda and ammonia, after twelve hours the granular 
precipitate was collected, washed with water containing a little 
ammonia, dried and amuse it ngted 303 > = ‘111 gram- 
mes of - 
G. The water was deeeneiiad: by heating to whiteness, in a 
covered crucible, three decigrammes of the carefully dried pow- 
der of the mineral. The loss was ee to eines ge cent. 
He — thus obtain — 100 cp nites : 
_ Silicic acid; ©. strain dink 19-5 oe 
piDieaniéaisid Sib rlogty tyes elo “ae BEB 
- - Protoxide of oni naneiepeeds ail fee 
bottogd Map tiesiay oi iid +. ena Soy enh 
ae ina; eile by fh soeagee do a POS 
eres Lime, ty pines gat gt RAS *s 13° 
03 WN abeeyiereh op oseamheieen hobyyne eee’ ABO 
ee 101-98 
Re 5 ng ina vad prednes0 a agai probable that the 
ttaniferons irons contain a titanic oxide (‘Ti,O 2 analogous to the 
* Annal. de Chim. et de Phys., tome xv, ae = p. 290. 
Srcoxp Series, Vol. I, No. 4.—July, 1846. 
