Petrified wood is one of the most sought-after materials in the world for both its aesthetic value and its scientific value.

This acid liquor is the pyroligneous acid. It is really an impure vinegar, from which acetic acid can be obtained, and the method employed is as follows: The pyroligneous acid freed from the tar ...

Balsamic vinegar contains six percent acetic acid, which is slightly higher than the acetic acid rate in distilled and apple cider vinegar. Used medicinally through the ages, acetic acid is now ...

"It's all very simple, mix-in-a-pot-chemistry." These newly boosted bacteria produce acetic acid, essentially vinegar, from CO2, water and light. They have an efficiency of around 80%, which is ...