102 MATER i A ME DIG A AND THERAPEUTICS. 



+ 3H 2 0. (2) 2Na. 3 SbS 3 + 3H 2 S0 4 = Sb 2 S 3 + 3Xu.,S< ) 4 

 - 4- 3H~ 2 S. 



Characters. An orange-red powder, without odour, 

 and with a slight taste, insoluble in water. 



Impurities. General ; detected volumetrically. 

 Dose. 1 to 5 gr. 



.; Antimonium Stdphuratum is an important in- 

 \gredient of Pilula Hydrargyri Subchloridi Com- 

 jposita. 1 in 5. (See Mercury.} 



b. Liquor Antimonii Chloridi. Solution of Chloride 

 of Antimony, SbCl 3 , in Hydrochloric Acid. " Butter of. 

 ^Antimony." 



Source. Made by dissolving Black Antimony in 

 Hydrochloric Acid. Sb 2 S 3 + 6HC1 = 2SbCl 3 + 3H 2 S. 



Characters. A heavy yellowish-red liquid, giving a 

 white precipitate with water. 



From Liquor Antimonii Chloridi is made : 



Antimonii Oxidum. Oxide of Antimony. 

 Sb 2 3 . 



Source. Made by (1) precipitating Oxychloride 

 of Antimony, by pouring the Solution of the Chlo- 

 ride into Water; washing; and (2) adding Carbonate 

 of Soda Solution. (1) 12SbCl 3 + 15H 2 = 2SbCl 3 

 6Sb 2 3 4- 30HC1. (2) 2SbCl 3 5Sb 2 3 + 3Na 2 C0 3 

 eSb^Oj 4- 6NaCl 4- 3C0 2 . 



Characters. A greyish- white powder, in- 

 soluble in water. 



Impurities. Higher oxides, insoluble when 

 boiled with acid tartrate of potash. 



Dose. 1 to 4 gr. 



Preparation. 

 Pulvis Antlmonialis ^James's Powder.' ' 



1, with 2 of Phosphate of Lime. Dose, 3 to 



10 gr. 



From Antimonii Oxidum is made : 



Anthnonium Tartaratum. Tartarated 

 Antimony. Tartar Emetic. KSbC 4 H 4 O 7 .H 2 0. 

 Source. Made by boiling Oxide of Anti- 

 mony with Acid Tartrate of Potash, and crystal- 

 lising. 2KHC 4 U 4 6 + Sb 2 3 = 2KSbC 4 H 4 7 

 -J-H 2 0. 



Characters. Colourless transparent crys- 

 tals, exhibiting triangular facets. Solubility, 

 1 in 20 of cold water ; 1 in 2 of boiling water. 



