Aqua Regia
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
—HCl:HNO3 (3:1). Under a hood, carefully add, e.g., 5 mL of nitric acid to 15 mL of hydrochloric acid.
Must be prepared just before use and in just the amount necessary.
Do not store it.
Handle it and dispose of it with the appropriate safety procedures.
