Sodium bicarbonate was less satisfactory, as were also potassium acetate, potassium citrate, and Rochelle salts.
Diuretics—potassium acetate, potassium citrate, and oil of copaiba.
The catalytic process may, however, be set going at once by adding a trace of potassium acetate to the solution.
The yellow precipitate obtained is washed with a solution 605 of potassium acetate and finally with dilute alcohol.
Boron can be estimated by precipitation as potassium fluoborate, which is insoluble in a mixture of potassium acetate and alcohol.