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Oilfield Glossary
Oilfield Glossary
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sodium hydroxide

1. n. [Drilling Fluids]
A compound with the chemical formula NaOH. It is commonly known as caustic soda and 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.