UNSPSC 11180000: Metal oxide

Metal oxides are used as raw material for the manufacturing of alloys. They are a binary compound of oxygen with an atom or radical, or a compound which is regarded as binary; as, iron oxide, ethyl oxide, nitrogen oxide, etc.

UNSPSC 11180000 Metal oxide is a Family code covering chemical compounds and treatment media used in municipal water and wastewater systems, environmental remediation, and industrial processing. State and local procurement under this code centers on specialized chemicals and media for drinking water treatment, air quality control, and sampling operations—hydrogen peroxide for ozone treatment, iron sponge media for air or water treatment, and silicone tubing for PFAS sampling. Recent solicitations show municipal water departments as the primary buyers, with procurement structured as competitive bids, requests for quotation, and sole source awards depending on the specificity and availability of required materials. Cities typically require NSF or FDA certification, compliance with drinking water standards, and delivery to treatment facilities or departmental operations.

Recent activity spans Oregon and Texas, with the City of Salem appearing twice in the past four months—once for hydrogen peroxide 35% in quantities of approximately 11,000 gallons (IFB SKS004300016637, due May 6, 2026) and again for iron sponge media replacement (sole source SKS004300016481 to MARCAB COMPANY INC., $30,000 annually with a five-year renewal structure). The City of Fort Worth issued an RFQ for silicone tubing meeting PFAS sampling specifications (26-0175, due April 15, 2026) with one-year initial term and four optional renewals. A separate opportunity from Bernalillo County (RFP5326EM, due July 1, 2026) addressed opioid settlement capital projects and operating expenses, but does not reflect typical activity under the metal oxide code and appears misaligned with the category's scope. Competitive bids require submission of certifications, material data sheets, and safety documentation; successful vendors must maintain commercial general liability insurance and meet NSF/ANSI or FDA compliance standards.