195 



-'.'">. LEAD CHLORIDE. Pb C1 2 . 



a. White crystalline powder, precipitated from the acetate 



by common salt. 



b. Acicular crystals. 



296. OXTCHLORIDE. 



a. White powder. PbCI 2 PbO. (Pattinson's White Oxy- 



chloride of Lead.) 



b. Yellow powder. PbCl 2 7PbO. (Turner's Yellow. Pa- 



tent Yellow.) 

 Note. See Fownet, Chemittry, p. 450. 



297. CHROMATE. PbCrO v 



a. Yellow powder. (Chrome Yellow, Lemon Yellow, Leip* 

 zig Yellow, Paris Yellow.) 



298. BICHROMATE. Pb 2 Cr 4 . (Dichromate of Lead.) 



a. Orange powder. (Chrome Orange.) 



b. Red powder. (Chrome Red.) 



Note. Specimen a was prepared by boiling chrome yellow with lime 

 water. Specimen //, by adding chrome yellow to fused potassic nitrate. 

 See Watts, Diet. Chem., vol. i., p. 934. 



299 IODIDE. PbI 2 . 



a. Golden-yellow powder. (Plutnbi lodidum, B.P.) 



b. Ditto, crystalline scales. 



300. MOLTBDATB. ( Wulfenite.) 



a. Native, in sandy grains. 

 Note. For analyses, etc., see Dana, Mineralogy, p. 607. 



301. NITRATE. Pb(N0 8 ) 2 . 



a. Opaque crystals. (Plumbi Nitras, B.P.) 



b. Transparent ditto." 



* c. Mass of opaque crystals. 



302. NITRATE, BASIC. Pb N 3 . (Diplumbic Nitrate.) 



a. Crystalline grains. 



303. OXIDE, BASIC. Pb 2 O. (Suboxide of Lead.) 



a. Pale-grey powder, prepared from the monoxide by heat 

 in a closed vessel. 



304. OXIDE. PbO. (Litharge. Monoxide of Lead.) 



a. Reddish crystalline scales. 



b. Reddish powder. 



c. Ditto. (Massicot.) 



305. TRIPLUMBIC TETROXIDE. Pb 3 4 . 



a. Red powder. (Red Lead.) 



306. DIOXIDE. Pb0 2 . (Peroxide of Lead.) 



a. Puce- coloured powder. 



