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NITRIC ACID (0 - 50%) Chemical compatibility with O-rings, rubbers, & plastics

Nitric acid, typically used in concentrations from 0 to 50 percent and represented by the formula HNO3, is a strong mineral acid widely used in fertilizer production, explosives manufacturing, pharmaceuticals, and metal processing. It is also commonly used for etching, cleaning, and surface treatment of metals. In equipment where nitric acid solutions contact O-rings, rubber seals, gaskets, and plastic components, chemical compatibility should be evaluated to prevent swelling, embrittlement, or degradation. Proper storage, ventilation, safe handling procedures, and appropriate PPE are essential to ensure safe operation.

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