dispersant

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dispersant

(dis-pĕr′sănt) [ disperse]
A chemical that prevents organic substances from concentrating as sludge in a particular location. Such agents are used to break up oil spills or other substances but may have their own toxic effects.
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Nonionic, Surfactant-like Dispersants: This class of dispersants is comprised of lower-molecular-weight A-B- or A-B-A-type structures that contain a large ethylene oxide chain block that provides nonionic steric stabilization.
The amount of dispersant used was unprecedented, as was using dispersant at the wellhead, one mile below the surface.
developed the concept for the new dispersant, and the research team now has moved the material from concept to a prototype dispersant suitable for testing on actual oil spills.
New products recently introduced to the market include: EcoSense[TM] bio-based surfactants, EcoSmooth[TM] Satin conditioning polymers, ACUDYNE[TM] Shine hair styling polymer, EPITEX[TM] 66 and EPITEX[TM] AC waterproofing polymers, and the ACUSOL[TM] specialty dispersant range for auto dish.
But dispersants may change and even exacerbate the threats from oil toxins.
Despite repeated requests, the EPA continued to enforce the use of dispersants and toxic solutions.
Additional production of Tamol and Orotan high-performance hydrophobically modified copolymer dispersants from Dow is slated to begin in Q1 2013 following a rigorous scale-up and qualification process.
Caption: Dispersants are applied to keep clumps of oil like this from fouling shorelines after oil spills.
The researchers warned that using such dispersants in oil spills near shore could allow these chemicals to penetrate sands deeply enough to threaten groundwater supplies.
Shell, which said the leak has been stopped, has estimated that less than 40,000 barrels of crude have spilled into the sea and deployed ships with dispersants to attack the slick.
Verifi LLC has launched the Verifi Disperse, a new system that enhances and extends the Verifi Process Control System, by automatically adding not only water, but also dispersants to the concrete mix, while in transit.
The decision to use chemical dispersants at the seafloor was a classic choice between bad and worse," Valentine said.