Nalco 3688

The number one application for Nalco 3688 is breaking tight emulsions in crude oil.

During extraction, water and oil are violently mixed through pumps, chokes, and valves. This creates an emulsion (often called "rag layer") where microscopic water droplets are suspended in the oil phase. If left untreated, this emulsion leads to:

Nalco 3688 resolves this by migrating to the oil-water interface, neutralizing the stabilizing agents (asphaltenes, resins, waxes), and allowing the water droplets to coalesce and settle out. nalco 3688

Nalco 3688 is a proprietary, multi-functional liquid treatment chemical manufactured by Ecolab’s Nalco Water division. It is primarily formulated for use in open recirculating cooling water systems, though it finds limited application in closed loops and once-through systems.

The chemical is best described as a stabilized phosphate-based corrosion inhibitor blended with proprietary polymers for scale control. Unlike simple orthophosphate treatments, Nalco 3688 is designed to provide a dual-action mechanism: The number one application for Nalco 3688 is

It is typically supplied as a clear to amber liquid with a neutral to slightly acidic pH. The product is part of Nalco’s legacy “3000 series” of cooling water treatments, known for their reliability in moderate to large industrial systems.

In the complex world of oil and gas extraction, chemical treatment programs are the silent heroes that determine the difference between a profitable well and an economic failure. Among the vast arsenal of specialty chemicals, Nalco 3688 stands out as a legendary product. Known for its versatility and raw power as a surfactant and demulsifier, Nalco 3688 has been a staple in production chemical programs for decades. Nalco 3688 resolves this by migrating to the

Whether you are a production engineer battling tight emulsions, a purchasing manager looking for specifications, or a field technician trying to understand why this chemical works, this guide covers everything you need to know about Nalco 3688.

  • Storage: Store in a cool, dry, well-ventilated area away from oxidizing agents. Keep containers closed when not in use.

    • As with all industrial water treatment chemicals, safety is paramount.

    Because Nalco Water operates on a direct sales model and authorized distributor network, you cannot buy Nalco 3688 on Amazon or Alibaba (beware of counterfeit sellers).

    While there are hundreds of demulsifiers on the market (from Baker Hughes, Schlumberger, Clariant, etc.), Nalco 3688 maintains a cult following for several specific reasons: