The itching or burning that occurs in the body due to the bite or sting of these organisms is due to the entry of formic acid into the body.
It is also found in small amounts in urine, sweat and meat extract. Its molecular formula is CH2O2. Following is its structure formula.
It is a colorless, pungent, odor and hygroscopic fluid. Its boiling point is 100.5°C. It is a fusion of water, ether and alcohol in all proportions. It forms blisters on the skin as it is an intense corrosive.
Read More about Formic Acid…