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A chemical reaction between an acid and a base to form a salt and water. Neutralization is used in the manufacture of mud products, removal of acidic contaminants from muds and formation of emulsifiers in oil mud. Neutralization is used in the test for alkalinity of mud and mud filtrate.

See: acidityactive sulfidealkalinityfatty-acid soaphumic acidhydrolysislignitemud filtrateneutralizepHphosphate saltsaltSAPPsulfidetitration