During the 2010 Deepwater Horizon oil well blowout in the Northern Gulf of Mexico (GoM), the application of 6.97 million litres of chemical dispersants was used at the well-head and on the sea surface to promote oil degradation and weathering of the Mississippi Canyon 252 (MC252) crude oil. Chemical dispersants encourage microbial degradation by increasing the surface area of the spilled oil, w...

The stability of barium carbonate (BaCO3) suspensions in the presence of the dispersants, xanthan gum, sodium carboxymethylcellulose and carrageenan, has been studied using a phase separation technique. These materials have been found to stabilise the BaCO3 suspensions by increasing the viscosity of the medium. Of the three polymer dispersants, xanthan gum is the most effective in stabilising a...

Carbon nanotubes (CNTs) have been proposed and actively explored as multipurpose innovative nanoscaffolds for applications in fields such as material science, drug delivery and diagnostic applications. Their versatile physicochemical features are nonetheless limited by their scarce solubilization in both aqueous and organic solvents. In order to overcome this drawback CNTs can be easily non-cov...

SWCNT-reduced graphite oxide hybrid films were prepared by a filtration method. An efficient post-treatment procedure was designed to reduce GO and remove dispersants simultaneously. The sheet resistance decreased significantly after treatment, by a factor of 4-13 times. Films with excellent performance (95.6%, 655 Ω per square) were obtained and had great potential applications.

Abstract This article is devoted to the study of thermophysical properties nanofluids with single-walled and multi-walled carbon nanotubes (CNT). Their weight concentration varied from 0.05 0.2%. Nanofluids, based on ethylene glycol water, were studied. Dispersants also used. The diffusion CNT had been systematically investigated by method dynamic light scattering their effective hydrodynamic d...

one of the most chemical methods for controlling of oil spills is use of dispersants, which arewidely being used worldwide. in this research, comparison of acute toxicity of crude oil of the persian gulf-khark area (co), iranian naftroob crude oil dispersant (ind), radiagreen osd dispersant crude oil (rd), themixture of crude oil and iranian naftroob dispersant ( co-ind) and crude oil with radi...

The influence of polymeric dispersants containing different functional groups on TiO2 pigment particle suspension was investigated at pH 6.0 and 9.5, using rheology and particle size data. The dispersants chosen were polyacrylic acid and modified polyacrylamides including homo and copolymers modified with carboxylate and/or hydroxyl groups. The pigment suspension was strongly affected by both p...

Corexit-EC9500A and Corexit-EC9527A are two chemical dispersants that have been used to remediate the impact of the 2010 Deepwater Horizon oil spill. Both dispersants are composed primarily of organic solvents and surfactants and act by emulsifying the crude oil to facilitate biodegradation. The potential adverse effect of the Corexit chemicals on mammalian embryonic development remains largely...