caustic soda | Energy Glossary

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caustic soda

1. n. [Drilling Fluids]

The common name for sodium hydroxide [NaOH]. Caustic soda is used in most water-base muds to increase and maintain pH and alkalinity. It is a hazardous material to handle because it is very caustic and gives off heat when dissolved in water. Proper training and equipment are needed to handle it safely.

Alternate Form: sodium hydroxide

See: buffered mudcaustic potashchemical barrelconventional mudhardness ionsaltseawater mudwater-based drilling fluid