606 



SEC. 13. CHEMISTRY. 



Chloralhydrate, large crystals ~] 

 Chloralhydrate, small crystals I 

 Chloralhydrate, in powder - 

 Chloralhydrate, in crusts -J 

 Chloroform from Chloral, CHC1 3 . 



All these preparations are perfectly pure, the Chloralhydrate being a special 

 product of the manufactory. 



Saame and Co., Ludwigshafen on the Rhine. 



Phenol, pure, is perfectly free from 

 cresol, and therefore perfectly soluble 

 in 20 times its quantity of water. 



Phosphoric acid, chemically pure ; 

 the commercial so-called fused phos- 

 phoric acid contains up to 25/ 

 sodium-pyrophosphate. 



Salicylic acid cryst., perfectly solu- 

 ble in water, alcohol, and ether. 



Salicylic acid subl. 



Tannin leviss. contains only a very 

 trifling quantity of glucose, is there- 

 fore, according to H. Schiff, nearly 

 pure digallic acid. 



Monobromcamphor. 



Trichloride of carbon. 



Salicylate of quinine. 



Chloralhydrate in plates. 



Chloralhydrate in crystals, pre- 

 pared according to the special direc- 



Hyposulphate of sodium 



Hyposulphate of barium 



BaS 2 O 6 +4H 2 0. 

 Hyposulphate of strontium 



SrS 2 O 6 + H 2 O. 



Hyposulphate of lead PbS 2 O 6 + 4H 2 O. 

 Selenium, precipitated. 

 Cube of selenium. 

 Tellurium in rods Te. 

 Tellurium in cubes. 

 Telluric acid H 2 TeO 4 . 

 Iodide of carbon CI 4 . 

 Silicon-sulphide SiS 2 . 

 Chlorate of sodium, three different 



crystalline forms, NaC10 3 . 

 Periodate of sodium NaIO 4 + 3H 2 O. 

 Arseniate of sodium 



HNa 2 As0 4 +12H 2 0. 

 Lithium in wire, Li. 

 Lithium in balls, Li. 

 Lithium in bars. 

 Beryllium metal Be. 

 Berylliumchloride, subliia, BeCL. 

 Sulphate of Beryllium BeSO 4 + 2H 2 O. 

 Nitroprusside of sodium 



Cy 3 Fe 2 NO 2 , 2CyNa + 2H 2 O. 

 Zirconium metallic, Zr. 



tions of O. Liebreich, perfectly free 

 of other chlorinated compounds, and 

 is unchangeable for years. 



Chloralide. 



Butylchloral. 



Saccharate of iron, soluble, not 

 containing any" free sugar, but a pure 

 chemical compound of ferric oxyde. 

 soda, and sugar. 



Bromide of potassium, entirely un- 

 affected by barium salts. 



Iodide of potassium, like the above, 

 and free from iodic acid, therefore 

 entirely unchangeable. 



Potassium hydrate. 



Permanganate of potassium. 



Salicylate of sodium, easily soluble 

 in water and alcohol. 



Salicylate of zinc. 



E. Schering, Berlin. 

 Calcium met.,obtained by electrolysis, 



Ca. 

 Strontium met., obtained by electro- 



lysis, Sn. 

 Yttriumplatinocyanide 



YCy 4 Pt+7H 2 0. 

 Didymiumplatinocyanide 



Di 2 Cy 12 Pt 3 l8H 2 0. 

 Sulphate of Ceroso-ceric oxide 



Nitrate of Cerium-magnesia 



MgN 2 O 6 + CeN 2 6 + 8H 2 O. 

 Nitrate of Cerium-nickel 



NiN 2 O 6 + CeN 2 6 + 8H 2 O. 

 Nitrate of cerium and didymium 



Oxalate of yttrium 24 2 

 Oxalate of erbium ErC 2 O 4 + 3H 2 O. 

 Oxalate of cerium CeC 2 O 4 . 

 Oxalate of didymium DiC 2 O 4 + 4H 2 0. 

 Oxalate of thorium ThC 4 8 + 2H 2 O. 

 Sulphate of thorium ThS 2 O 8 + 9H 2 O. 

 Manganese metal Mn. 

 Nickelbromide subl. NiBr*. 

 Sulphate of nickel NiS0 4 + 7H 2 O. 

 Sulphate of nickel and potash 



