|Appearance||Yellow to red liquid|
|Refractive index (nD)||1.371-1.378|
|EU classification (DSD) (outdated)||Xn|
|Boiling point||99 °C (210 °F; 372 K)|
Details : Pyroligneous acid has been used for ages as sterilizing agent, deodorizer, fertilizer and antimicrobial. The strong antimicrobial activity of pyroligneous acid was correlated to its high contents of organic acids and phenolic substances. When the acid was separately applied or mixed with other acids in dilutions from 300 to 600 times, it proved to be useful in the control of curses and diseases of plants.