UNSPSC 12163603: Corrosion inhibitors

Corrosion inhibitors are chemical compounds that are added to liquids or gases to reduce or prevent the corrosion of metal surfaces and decreases the corrosion rate of a material, typically a metal or an alloy. Two types are Water Based Inhibitor and Oil based Inhibitor.

UNSPSC 12163603 Corrosion inhibitors is a Commodity code. State and local governments buy corrosion control chemicals—primarily liquid ferrous iron salt, ferrous chloride, and bioxide additives—for injection into wastewater collection and treatment systems to mitigate odor, protect infrastructure from corrosion, and improve treatment efficiency. The City of Dallas's recent solicitation for a thirty-six-month sewer odor and corrosion control services contract illustrates the primary use case: municipalities procure these chemicals on an as-needed basis to treat wastewater infrastructure and safeguard public health. The issuing bodies using this code are municipal utilities and water departments. The City of Dallas is the standout recent buyer, soliciting an estimated $10 million contract for chemical injection services into wastewater systems.

Recent activity appears concentrated in Texas and Georgia. The City of Dallas (May 2026, bid due June 26, 2026) posted the most concrete and value-significant opportunity under this code—an ID/IQ service agreement for sewer odor and corrosion control chemical purchase and injection carrying a mandatory Small Business Enterprise participation goal under the City's DRIVE Policy and a local preference allowing local firms within five percent of the lowest bid. The scope requires five years of established experience providing similar services and references from two clients within the previous two years. A wage floor of $23.06 per hour applies, and contractors must carry Environmental Impairment/Pollution Liability insurance of $1 million per claim. The remaining recent opportunities in the block (irrigation improvements in DeBary, Florida; traffic signal maintenance in Tallahassee; flood control pond construction in Williamson County, Texas; and IT infrastructure in DeKalb County, Georgia) are tagged under this code but do not involve corrosion inhibitor procurement or injection services, suggesting potential indexing mismatches in the source data. Activity under the code itself remains sparse and geographically limited.