Balneum Formicum Effervescens, B.P.C. Effervescent Formic Bath.
|Concentrated Formic Acid (80 per cent.)||0.25|||||12 1/2 fl. ounces|
|Sodium Bicarbonate, in powder||0.40|||||20 ounces|
|Water at 30° to 35° ...||to 100.00|||||to 30 gallons|
Add the formic acid to the water and immerse the sodium bicarbonate, previously enclosed in two calico bags.
The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.