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.