Acidified [verb]

The pasty mass was dissolved in water, acidified with sulphuric acid, and filtered.

Barium nitrate, added to a solution acidified with nitric acid, is the group reagent.

Silver nitrate, added to a solution acidified with nitric acid, is the group reagent.

Extract the slightly acidified sample with 95 per cent alcohol and dye wool as directed under “Vegetables.”

Prolonged soaking in a hot solution of potassium bichromate which has been acidified with sulphuric acid will often prove useful.

The filtered solution was acidified until no further precipitate was formed.

A white powder is obtained which tans when its solution is acidified.

The filtered solution is acidified with hydrochloric acid, warmed, and precipitated with sodium sulphite.

Filter, and wash the precipitate with water acidified with sulphuric acid.

The filtrate is acidified with acetic acid, and treated with a few drops of a solution of lead acetate.