Sources of Boric Acid: Natural & Industrial Origins

Boric acid is a naturally occurring compound that can be found in many places, including:

- In mineral form as sassoline, usually near volcanic fumaroles

- In seawater, at a concentration of about 4-5 parts per million

- In some hot springs

- In mineral waters

- As a refinement byproduct of borax

- In fertilizers

- In some pesticides