156 Miscellaneous Intelligence. 



16. Compound of Muriate and Hydrosulphuretted Oxide of An^ 

 timony. — Sulphuretted hydrogen added to solution of muriate of 

 antimony, throws down a yellow coloured precipitate, generally 

 regarded as a hydrosulphuretted oxide of antimony, but which is 

 a compound of that substance with neutral muriate of antimony. 

 Heat separates the latter body, and sulphuret of antimony re- 

 mains. A similar effect is produced by exposing the precipitate 

 in a close vessel to the solar light. — Gmelin, Ann. Phil, N. S. 



17. New Mineral. Titaniferous Cerite. — M, Laugier has lately 

 analyzed a mineral from the Coromandel coast, which, from its 

 composition appears to be peculiar and distinct. It was brought 

 to Europe by M. Leschenault de la Tour. It was an irregular 

 mass, of a blackish-brown colour, a ^'itreous conchoidal fracture, 

 hardness equal to that of the Gadolinite, to which mineral it had 

 some analogy, but differing from it by swelling up when heated. 

 It lost only 1.25 per cent when heated, although it contained 

 -^Q of water ; a cause for this effect will be evident presently. 



Acids and alkalies both act upon it, and M. Laugier employed 

 these agents in his analytical experiments. He found it to yield 

 36 oxide of cerium; 19 oxide of iron; 8 lime; 6 alumine ; 11 

 water; 1.8 oxide of manganese ; 19 silica ; 8 oxide of titanium. 

 These quantities surpass the 100 used by 9.55 parts ; this is oc- 

 casioned by the protoxide of cerium which exists in the mineral 

 becoming peroxide during the process, and this is also given as 

 the reason why so little loss of weight occurs when the substance 

 is calcined. 



M. Laugier remarks, that this mineral is analogous in its com- 

 position to the substances distinguished by Berzelius and His- 

 singer as Orthite, Allanite, and Cerine ; that it particularly 

 resembles orthite, especially in its physical characters, but differs 

 in the presence of titanium. It may therefore be regarded as a 

 new variety oi titaniferous cerite. — Ann. de Chimie. xxvii. 313. 



18. On Chloride of Titanium. — Having the opportunity of ex- 

 amining the foundation of a blown out furnace, at the Low 

 Moor Iron Works, Mr. E. S. George removed from it a quantity 

 of the stone work, penetrated completely by metallic iron, 

 sulphuret of iron, carbonaceous matter, and titanium in bril- 

 liant cubes. Part of this mixture, acted upon by muriatic acid, 

 evolved hydrogen, and sulphuretted hydrogen, the iron and earths 

 were dissolved, and a mixture of titanium cubes and grains of sand 

 was left ; the silex was easily removed. 



Sixty grains of the metallic titanium were placed in a glass tube 

 and dry chlorine passed over ; no action was perceptible until 

 the titanium was heated to redness, but then a fluid gradually 

 condensed in the cool part of the tube, and was collected by in- 



