UNSPSC 12163700: Gas hydrate controllers

UNSPSC 12163700 Gas hydrate controllers is a Class code that encompasses water treatment chemicals used by municipalities and counties to control corrosion, odor, and residual chlorine in potable water and wastewater systems. State and local procurement offices are soliciting under this code for specialty chemicals including sodium bisulfite, magnesium hydroxide slurry, corrosion inhibitors, liquid polymer for sludge handling, and sodium hypochlorite—products that address specific treatment challenges in water distribution and wastewater discharge. The issuing bodies are primarily city water and wastewater departments and county utilities divisions across multiple states, with occasional school district and special-purpose district involvement; the City of Austin, City of Tallahassee, City of Griffin, and Volusia County appear as repeat buyers in recent months, each managing multi-facility water or wastewater systems requiring ongoing chemical supply agreements.

Recent activity spans Texas, Florida, Georgia, Connecticut, and Arizona, with Texas and Florida showing the highest volume of solicitations in the past four months. Representative opportunities include the City of Austin's IFB for sodium bisulfite solution (IFB 2200 BYS1051REBID, due June 9, 2026) covering delivery to waste treatment plants on an as-needed basis; the City of Tallahassee's IFB for magnesium hydroxide slurry (IFB-067-26-CPW, due June 16, 2026) structured as a five-year firm-fixed-price requirements contract with hydrogen sulfide and corrosion control specifications; the City of Griffin, Georgia's line-item ITB for sixteen water treatment chemicals (ITB #26-008, due May 28, 2026) including sodium hydroxide, liquid chlorine, and aluminum sulfate solution for six treatment facilities; and the City of Phoenix Water Services Department's five-year IFB for sodium hypochlorite (IFB-26-0155, originally due February 2, 2026, with sealed offers for approximately 821,000 dry pounds annually across four delivery modes). Most contracts are one to five years with renewal options, require NSF/ANSI 60 certification and AWWA standards compliance, impose firm fixed pricing for initial periods with indexed annual adjustments thereafter, and specify delivery within 48 to 72 hours of order placement to municipal facilities during business hours. Local vendor preferences appear in Texas solicitations; Connecticut and Florida award criteria incorporate incumbent status and drug-free workplace certifications.