American Heritage Dictionary of the English Language, 5th Edition
Formalin Sentence Examples
The more important of those in use to-day are carbolic acid, the perchloride and biniodide of mercury, iodoform, formalin, salicylic acid, &c. Carbolic acid is germicidal in strong solution, inhibitory in weaker ones.
Similar spots are produced on potatoes in America by the fungus Oospora scabies, and in both cases, if affected "seed" potatoes are steeped in a solution of 2 pint formalin in 15 gallons of water for two hours before planting, the attack on the resulting crop is materially lessened.
Thus 4% buffered formaldehyde is equivalent to 10% buffered formalin.