CI/CHLOR PAMPHLET 163 PDF

This publication is intended to provide useful information concerning the storage and piping of hydrochloric acid solutions. This pamphlet's objective is to offer practical suggestions in the design, construction, and operation of systems suitable for up to 37% solution of hydrochloric acid. This pamphlet should not be used for operations involving anhydrous hydrogen chloride.

It is also important to note that this pamphlet only addresses “aqueous” hydrogen chloride also known as hydrochloric acid or muriatic acid (UN 1789), and it does not address “anhydrous hydrogen chloride.” While they may have similar names, these two materials have different physical and chemical properties and, therefore, require different considerations for safe handling and emergency response.

Guidance on the transportation of hydrochloric acid can be found in CI Pamphlets 98 and 150 (7.1).