1 Bismuthi Subnitras. Bismuth Oxynitrate. Dose, 5-20 grs.; 

 3-12 dgms. 



BiONO 3 , H 2 O. A heavy white crystalline powder, faintly acid. In- 

 soluble in water, somewhat soluble in glycerin. 



Incompatibles, carbonates and bicarbonates, iodides, hypophosphites, 

 tannic acid. 



2 Bismuthi Oxidum. Bismuth Oxide. Dose, 5-20 grs.; 3-12 

 dgms. 

 Bia Os. A heavy brownish-yellow powder. Insoluble in water. 



2 Bismuthi Salicylas. Bismuth Oxysalicylate. Dose, 5-20 grs.; 

 3-12 dgms. 



A nearly white powder. Insoluble in water. 

 Like all salicylates gives a violet colour with ferric salts. 



2 Liquor Bismuthi et Ammonii Citratis. (Liquor Bismuthi.) 

 Dose, 30-60 min.; 2-4 c.c. 



A colourless, slightly alkaline solution, containing 3 grs. of Bismuth Oxide 

 in 60 min. 



Incompatibles, most mineral acids and the stronger organic acids pre- 

 cipitate bismuth citrate. 



Boron. Boron. 



^Acidum Boricum. Boric Acid. (Boracic Acid.) Dose, 5-15 

 grs.; 3-10 dgms. 



H 3 BO 3 . Colourless, pearly lamellar crystals, odourless, unctuous to the 

 touch, slightly bitter and acrid in taste. Soluble, 1 in 30 of cold, 1 in 3 

 of boiling water, 1 in 4 of glycerin, 1 in 30 of alcohol. 



Incompatibles, carbonates, mercuric chloride (a basic chloride is formed) 

 silver nitrate, lead acetate, barium chloride, calcium chloride, (borates 

 formed) alum, zinc sulphate, and ferric chloride. 



^lycerinum Acidi Borici. 6; Glycerin by weight to 100, heated 

 to 302 F. 



2 Unguentum Acidi Borici. 10; White Paraffin Ointment, 90. 



Borax. Borax. (Sodium Biborate or Pyroborate.) Dose, 5-20 

 grs.; 3-12 dgms. 



Na2B 4 O7, 10H 2 O. Colourless, transparent crystals, sometimes slightly 

 effloresced, with a weakly alkaline reaction in solution. Soluble 1 in 25 of 

 cold, 2 in 1 of boiling water; 1 in 1 of glycerin; insoluble in alcohol. In- 

 compatibles, as an alkali, alkaloids and chloral; acacia and the metals 

 mentioned above under boric acid. 



^lycerinum Boracis. 14.25; Glycerin, 85.5. (Contains some 

 free acid.) 



2 Mel Boracis. 10.5; Glycerin, 5.25; Clarified Honey. 84. 

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