UNSPSC 12164509: Anticaking agent

A substance used in such things as table salt to keep the product from forming lumps, making it better for packaging, transport, and for the consumer.

UNSPSC 12164509 Anticaking agent (Commodity) encompasses calcium oxide (quicklime), hydrated lime, and related lime-based treatment chemicals supplied in bulk to municipal water and wastewater treatment facilities. State and local governments procure these products primarily to support primary and secondary water treatment operations—lime is used for pH adjustment, softening, and sludge conditioning. Recent solicitations show that the code's practical scope extends beyond pure anticaking to encompass full water-treatment-grade lime systems, including proprietary lime slaking equipment, replacement parts, and authorized maintenance services when part of an integrated procurement. Cities and counties issue the majority of opportunities; water treatment plants and wastewater utilities are the primary end-users. Water departments appear as repeat buyers across multiple jurisdictions.

Recent activity spans Florida, Georgia, Arizona, Oregon, Connecticut, and other states with multiple water treatment procurement cycles running concurrently. The City of St. Petersburg issued IFB-26-344 for calcium oxide meeting AWWA B202-25 specs (approximately 1,800 dry tons annually, bulk delivery to seven storage silos, bids due October 29, 2026); the City of Cartersville Water Department solicited bids on water treatment chemicals including liquid lime slurry (bids due October 30, 2026) for delivery to two treatment plants; and the City of Griffin issued ITB #26-008 for sixteen line-item water treatment chemicals including sodium hydroxide and hydrated lime (bids due May 28, 2026, with firm pricing for the initial 12-month term). Clean Water Services, a water resource recovery district in Oregon, requested bids on hydrated lime in bulk for three facilities (bids due September 30, 2026). Most contracts are annual or multi-year with renewal options; pricing remains firm for the first contract year, with adjustments thereafter tied to published indices such as the Producer Price Index. Delivery within 72 hours of order is standard, and NSF 60 or AWWA certification is mandatory for potable-water applications. Bid bonds (typically 5–10 percent of bid value) and performance bonds are routine requirements.