UNSPSC 12171508: Vat dye

Vat dyes are essentially insoluble in water and incapable of dyeing fibres directly. However, reduction in alkaline liquor produces the water soluble alkali metal salt of the dye, which, in this leuco form, has an affinity for the textile fibre.

UNSPSC 12171508 Vat dye is a Commodity code that in practice encompasses industrial chemical supplies for water treatment and infrastructure applications, as evidenced by recent state and local purchasing activity focused on sodium chloride and similar bulk chemical commodities. State and local water authorities and utilities represent the primary issuing bodies under this code, procuring treatment-grade chemicals for potable water processing, ion exchange resin regeneration, and related facility operations. The scope of work centers on furnishing, delivery, and unloading of high-purity bulk chemicals meeting industry standards such as AWWA B200, with strict specifications for chemical composition, trace metals, impurities, and physical properties. Vendors must demonstrate capability to meet rapid delivery windows—often five working days or less—and comply with comprehensive certifications including E-Verify registration, drug-free workplace compliance, and commercial general liability insurance requirements.

Tohopekaliga Water Authority (Toho) in central Florida, serving Osceola, Orange, and Polk counties, issued an Invitation for Bids (IFB-26-012) on February 23, 2026, for the furnishing and bulk pneumatic delivery of treatment-grade sodium chloride to three water treatment facility locations, with an estimated annual quantity of 5,000 tons and a contract term running through September 30, 2029, with optional renewals. The response deadline was March 26, 2026. Pricing is quoted on a per-ton basis, freight prepaid and FOB Destination, with bidders required to provide three to five relevant references from similar work performed within the past five years and submit affidavits of non-collusion, E-Verify certification, and anti-human trafficking compliance forms. Florida vendor eligibility requirements apply, including public entity crime certifications and compliance with scrutiny regarding boycotts of Israel and operations in Cuba or Syria.