Hydriodic Acid
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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)
HI 127.91 CAS RN: 10034-85-2.—Use ACS reagent grade (containing not less than 47.0% of HI).
[Note—For methoxy determination (see Methoxy Determination 〈431〉), use hydriodic acid ACS reagent grade 55%. Use this grade also for alkoxyl determinations in assays in the individual monographs.]
