21 C.F.R. § 182.1057 Hydrochloric acid.
Title 21 - Food and Drugs
(a) Product. Hydrochloric acid. (b) [Reserved] (c) Limitations, restrictions, or explanation. This substance is generally recognized as safe when used as a buffer and neutralizing agent in accordance with good manufacturing practice.
Title 21: Food and Drugs
PART 182—SUBSTANCES GENERALLY RECOGNIZED AS SAFE
Subpart B—Multiple Purpose GRAS Food Substances
§ 182.1057 Hydrochloric acid.