Contractions. - Kali-brom. K-br.
Present name. - Potassic Bromide. KBr.
Bromide of Potassium.
This may be procured from the manufacturing chemists, and re-crystallized.
Characters and Tests. - In colourless cubical crystals, with no odour, but a pungent saline taste, readily soluble in water, less soluble in spirit. Its aqueous solution gives a white crystalline precipitate with Tartaric Acid. When its solution in water is mixed with a little Chlorine, Chloroform agitated with it, on falling to the bottom, exhibits a red colour. 10 grains require, for complete decomposition, 840 grain measures of the volumetric solution of Nitrate of Silver. A solution of the salt mixed with mucilage of Starch and a drop of an aqueous solution of Bromine or Chlorine, does not exhibit any blue colour.
Preparation. - Solution in distilled water for lx, and then using rectified spirit.
Reference to Horn. Proving. - Noack and Trinks.
Proper forms for dispensing. - lx, Solution only. 1 and upwards, Tincture, Pilules, or Globules.