Potassium Hydroxide Solution

Potash Solution

Potassium Hydroxide Solution is a solution of Potassium Hydroxide in Purified Water.

4.9 to 5.1% w/v.

A colourless solution.

Strongly alkaline and when neutralised with 2m hydrochloric acid yields the reactions characteristic of potassium salts, Appendix VI.

1.040 to 1.050 g, Appendix V G.

Titrate 20 mL with 1m hydrochloric acid VS using methyl orange solution as indicator. Each mL of 1m hydrochloric acid VS is equivalent to 56.11 mg of total alkali, calculated as KOH.

Potassium Hydroxide Solution should be kept in a well-closed container of lead-free glass or of a suitable plastic.

The label states (1) the date after which the solution is not intended to be used; (2) the conditions under which it should be stored.