Sentences with phrase «organic solvents»
Organic solvents are substances that are used to dissolve or disperse other materials. They are made up of carbon atoms and can dissolve various organic compounds, such as oils, paints, or plastics. Think of them as special liquids that help mix or clean certain materials by breaking them down into smaller particles. Full definition
«By choosing a different outer block in the bottlebrush - like block copolymers, our nanorods can be dissolved and uniformly dispersed in organic solvents such as toluene or chloroform, or in water.»
sciencedaily.com
The system patented by Bara would replace much of the water in the aqueous amine solutions with imido - acid salts, a negatively - charged group of organic solvents with almost no vapor pressure, or boiling point.
«We're looking at using organic solvents to apply this technique to non - water soluble polymers,» Li said.
It sublimes, is volatile with steam, and is soluble in most organic solvents as well as aqueous alkaline solutions.
P.A. Bucholtz in 1816 first discovered that the pungent principle of peppers could be extracted from the macerated pods with organic solvents.
While the researchers» green chemistry approach eliminated heat input and the need for organic solvents as a reaction medium, the reaction still required an expensive amount of the precious metal catalyst palladium.
«It eliminates organic solvents from the reaction medium, requires little to no energy input — and now, it reduces the cost and extends the lifetime of an endangered precious metal, palladium.»
If the approach works for other reactions, it could propel «green chemistry» efforts to make everyday compounds without using toxic organic solvents.
When electronics companies realised that concerns about the ozone layer would deprive them of CFCs, they started to look for substitutes — usually other organic solvents, such as HCFCs.
For instance, the DOE JGI and its partners are sourcing microbial and fungal enzymes for more effective biomass pretreatment with ionic liquids, environmentally benign organic salts often used as green chemistry substitutes for volatile organic solvents.
The vast majority of organic reactions today require organic solvents, many of which are environmentally hazardous and costly to dispose of.
Until then the only alternatives were organic solvents such as aromatic hydrocarbons or benzene derivatives which could leave toxic residues.
The Cryo Coin is created from brass and then coated with nickel which makes it withstand most organic solvents, fresh and saltwater, and more.
This improves packaging material safety by reducing organic solvents in expanded applications.
«We've moved from pure organic solvents to solutions with increasing amounts of water,» said Dr. Monte Helm, Deputy Director of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center.
«The pores in the nanosheets provide the surface area to absorb oils and organic solvents up to 33 times its own weight.»
The isolation of pigments through organic solvent extraction is not permitted.
But the process still required dangerous organic solvents, and recovering the reaction products from the mix of solvent and catalyst required turning up the heat to distill the solvent, a treatment that could destroy the catalyst.
Last May collaborators James P. Hamilton of the University of Wisconsin Platteville and Jonathan N. Coleman of Trinity College Dublin in Ireland showed that graphene dissolves in certain organic solvents.
«However, CH3 • intermediates tend to react with the hydrocarbon organic solvent giving the deactivation of reactive the radical intermediates.
Led by Bristol professor Julian Eastoe, the team tested their soap by placing it in a test tube and pouring in a less - dense organic solvent material on top, so the soap was sandwiched at the bottom.
To produce such light shows, researchers treat euthanized rodents with several organic solvents to remove the water and lipids that made them opaque.
In addition to the small amount of palladium, that magic composite includes very inexpensive iron, the proper organic solvent, a stabilizing group for the metals and a reducing agent.
Moreover, only small amounts of a single green organic solvent are needed for extracting the final product, which means that the remaining reaction mixture can be used repeatedly.
Conventional homogeneous techniques use typically organic solvents, such as toluene, which are not environmentally benign.
All aqueous lithium - ion batteries benefit from the inflammability of water - based electrolytes as opposed to the highly flammable organic solvents used in their non-aqueous counterparts.
Typically, additional organic solvents are used to facilitate the separation and extraction of product.
Examples of organic solvent smells most everyone has experienced are kerosene, gasoline, or rubbing alcohol.
Vitamins A, D, E, and K dissolve in organic solvents whereas the B vitamins and vitamin C dissolve in water
For example, synthetic organic solvents used in dry cleaning enter our bodies on touch, only to take up residence in fatty tissues, like the breast and liver.
I think he's inhaled a bit too much organic solvent when he was still working in the plastics industry.
For this process, FUJI TOKUSHU SHIGYO CO also developed new inkjet ink with high - adhesion strength to plastic film, as well as a white, water - based photogravure ink that adheres to inkjet ink and reduces the quantity of organic solvent by 95 %.
Developments like the use of water and supercritical carbon dioxide to replace potentially toxic organic solvents, deployment of catalysts that function at room temperature and pressure, mindful consideration of product toxicities and amounts when performing chemical reactions and keeping track of energy requirements for chemical machinery and equipment are only some of the strategies adopted by chemists for responsible chemical analysis, synthesis and manufacturing.
In addition to being a conductor before it is functionalized, GO is also known to be easily dispersed in water and other organic solvents, which begs the question of how does this research add to the understanding of GO's known fundamental properties.
The limitation with previous dye sensitized solar cells is they required a volatile organic solvent as the electrolyte.
The Pulmuone Company also displayed their commitment to sustainability by not only reducing organic solvents but also cutting carbon dioxide emissions.
The new medium, 80 - 90 percent water with fluoroalcohol, supports the synthetic reaction of organic compounds and even produces considerably higher yields of product than pure organic solvents.
Accordingly, the abatement strategy for organic solvents is having an effect in Europe.
A centrifugal concentrator capable of removing water and organic solvents from a variety of sample formats including tubes, microplates and vials.
The currently used nickel oxide, is not very efficient, toxic and requires organic solvents to work in the cell.
A widely used organic solvent, dichloromethane is abundant in industrial areas as well as in wetland emissions.
Conjugated polymers are produced in organic solvents and do not inherently dissolve in water.
GNT's EXBERRY ® Colouring Foods are concentrates produced from fruits, vegetables and edible plants, using physical processes and no synthetic additives or organic solvents.
No organic solvents are used.
No artificial additives, chemicals or organic solvents are included.
EXBERRY ® products are made from fruits, vegetables and edible plants — and utilise no artificial additives or organic solvents in their processing.
PP is resistant to almost all organic solvents, fats, acids and bases, is also odourless and does not irritate the skin and is therefore very well suited for use in the food sector and pharmaceuticals.
The Body Pillow of Coop Home Goods is made by certified shredded memory foam which provide the ultimate support and soft feeling, and it is free of organic solvents and heavy metals.
They increased membrane protein folding in water during protein translation and preserved water - soluble protein activity in organic solvents.