189 

 COPPER SCLPBATE. 



Note. For very perfect crystals of this salt, see the central case, No. 9. 

 For fig. of the crystals, see Wattt, Diet. Chem., vol. ii.,p. 168, figs. 313, 

 814, 315. 



d. Anhydrous, in greenish-white powder. 

 222. AMMONIO- SULPHATE. Cn 2N H 9 S O 4 , 6H 2 O. 



a. Dark-blue crystalline powder. 



b. In large crystals. 



2-2:}. SULPHIDE. Cu S. (Protosulphide of Copper, Cupric Sulphide.) 



a. Blackish-green powder. 

 Note. For native sulphides of copper, see central case, No. 9. 



224. SULPHITE. Cu 3 S 8 . (Cuprous Sulphite.) 



a. Maroon-coloured powder. 



225. SULPHO-CARBOLATE. Cn (C 6 H 5 S 4 ) 8 . 



a. Dark-green crystals. 



MERCURY. Hg. 



226. METALLIC. 



a. Pure. 



b. Ditto, " killed " with prepared chalk. (Hydrargyrum 



cum Greta, B.P.) 



t c. Iron bottle in which mercury is imported, 

 t d. Wooden ditto, from China. 



227. ACETATE, MERCUROUS. HgC 2 H 3 2 . (Proto-acetate of Mercury.) 



a. Small white scaly crystals. 



228. ACETATE, MERCURIC. Hg (C 2 H s 2 ) 2 . 



a. Brilliant micaceous crystals. 



229. BROMIDE, MERCUROUS. Hg Br. 



a. White powder. 



230. BROMIDE, MERCURIC. Hg Br 2 . (Bibromide of Mercury.) 



a. Acicular crystals, deposited from alcoholic solution. 

 Note. When deposited from aqueous solution, this salt crystallizes in 

 silvery laminae. 



231. CHLORIDE, MERCUROUS. HgCl. (Subchloride of Mercury, 



Calomel, Submuriate of Mercury, Hydrargyrum Sub- 

 chloridum, B.P., Hydrargyrum Chloridum, P.L., Hy- 

 drargyrum Muriaticum Mite.) 

 a. White powder. 



232. CHLORIDE, MERCURIC. HgCl 2 . (Bichloride of Mercury, Corro- 



sive Sublimate, Hydrargyrum Perchloridum, B.P.) 

 a. Crystalline masses. 



233. AMMONIO-CHLORIDE. NH 2 HgCl. 



a. White powder. (White Precipitate, Hydrargy mm A m- 

 moniatum, B.P.) 



