UNSPSC 47131831: Muriatic acid

UNSPSC 47131831 Muriatic acid, a Commodity code, covers the supply and delivery of hydrochloric acid and related chemical products for municipal water and wastewater treatment operations. State and local governments procure muriatic acid primarily as a maintenance chemical for water treatment plants, membrane cleaning, and general facility operations. Recent solicitations show cities, counties, and special-purpose districts issuing competitive bids (IFB and RFQ notices) for bulk quantities delivered on as-needed schedules, with contract terms typically running one to three years and pricing structured on a per-unit (per-gallon or per-drum) basis including delivery. Product specifications consistently require NSF 60/61 certification, compliance with AWWA and ANSI standards, and concentration ranges of 31.5% HCl ±1.5% in liquid form. Bidders must provide hazardous materials handling capability, 24-hour emergency contact availability, proof of liability insurance ($1 million minimum commercial general liability is common), and compliance with DOT hazardous material transportation regulations.

Recent activity spans Florida, Georgia, Arizona, Connecticut, and Oregon, with municipal water departments and special water resource districts as primary buyers. The City of St. Petersburg posted an IFB on October 9, 2026, for calcium oxide (lime) and related chemicals including muriatic acid for the COSME Water Treatment Plant, with bids due October 29, 2026—a three-year contract at approximately 1,800 dry tons annually with SBE, MBE, or WBE participation required. The Pinellas County School Board solicited swimming pool chemicals including muriatic acid via RFQ 25AM018 (due February 11, 2026) to five school locations, with an estimated annual contract value of $35,000. The City of Phoenix posted IFB 26-0104 on September 24, 2026, for a five-year contract covering hydrochloric acid in multiple container sizes (55-gallon drums and 330-gallon totes) with bids due October 16, 2025 and DBE participation mandated by the Department of Transportation. Sarasota County issued a Quick Quote on May 12, 2026, for twelve 55-gallon drums of muriatic acid (HCl 31.5%) for the Bee Ridge Water Reclamation Facility, with a $50,000 price cap. Cities of Jackson, Griffin, Meriden, Cartersville, Cocoa, and Valdosta all posted water treatment chemical solicitations during spring and fall 2026 that included muriatic acid or related acids. Competitive bids dominate; sole-source procurements are limited to proprietary equipment-specific parts and OEM components rather than commodity acid supply.