The formic acid that the ants secrete had partly paralyzed it and made defence impossible.
formic acid is shed so sensibly by the wood Ant, Formica rufa, when an Ant-hill is stirred, that it can occasion an inflammation.
I find the formic acid which I obtain from different chemists rather variable in its strength.
formic acid may be used in place of the sulphuric acid, very good results being obtained.
There is a deal to be said in favour of the use of another organic acid, formic acid.
Then they have the formic acid that, used against ants or other insects, has a poisonous quality.
It is true he tastes slightly of formic acid, but that is just the flavour that epicures admire.
In some cases it becomes changed in the body into formic acid, which should therefore be sought for.
Ammonia is used to render the bath alkaline, and formic acid to make it acid.
Somewhat similar but rather smaller results were given by yeast-juice, a small consumption of formic acid being usually observed.
formic acid for·mic acid (fôr'mĭk)
A colorless caustic fuming liquid used in dyeing and finishing textiles and paper and in the manufacture of fumigants, insecticides, and refrigerants.
A colorless, caustic, fuming liquid that occurs naturally as the poison of ants and stinging nettles. It is used in making textiles and paper and in insecticides. Formic acid is the simplest organic acid, containing a carboxyl (COOH) group attached to a hydrogen. Chemical formula: CH2O2.