chemical protective Articles
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Facts and Consequences
Another view -- Jon Entine's case is compelling, and his article raises a fundamental question that has been largely lost in the bisphenol A debate. The question is how to balance the need to feed the world by maintaining a safe food supply system with the desire to be cautious in protecting human health from chemical exposures that may pose ...
By Acta Group
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The Devilish Details of TSCA Reform
On April 14, Sen. Frank R. Lautenberg, D-N.J., introduced the Safe Chemicals Act of 2011, which is intended to modernize the Toxic Substances Control Act to require chemical companies to demonstrate the safety of industrial chemicals and the U.S. Environmental Protection Agency to evaluate safety based on the best available ...
By Acta Group
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ABCOV® process cleanly destroys asbestos
ABCOV® Process Cleanly Destroys Asbestos By William Mirick, Robert Dvorin and Tony Nocito A major breakthrough has occurred in asbestos disposal: a patented, non-thermal, chemical-physical, Federal Environmental Protection Agency approved process, capable of destroying all forms of asbestos on site, as it is being abated, known as the ABCOV® Method, is now commercially available. Developed over a ...
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Treatment of high temperature phenomenon of crushing machine
Crushing machine of our Calcium Carbonate Processing Plant machinery are widely used in mining, building materials, metallurgy, transportation, hydrapower, coal, chemical industry, environmental protection and other industry. The company provides customers with five-star service as the basic concept, and pursuit comprehensive, fast, positive, timely service slowly, how to resist the high ...
By SBM Machine
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Bioaccumulation of hexachlorobenzene in the terrestrial isopod Porcellio scaber
A test system to investigate the biomagnifcation of organic chemicals in the terrestrial isopod Porcellio scaber was developed and validated. Adult isopods were fed on alder leaf powder (Alnus glutinosa) spiked with [14C]hexachlorobenzene (HCB). Test animals, sampled regularly during the uptake (16 d) and depuration phases (16 d), were analysed and the kinetic of tissue concentrations ...
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Bloomberg BNA Daily Environment Report References NCC Response in “Environmentalists Challenge Safety of EPA`s New Chemical Reviews”
On January 10, 2018, the Bloomberg BNA Daily Environment Report covered the TSCA New Chemicals Coalition’s (NCC) response to a federal court challenge by the Natural Resources Defense Council (NRDC) against the U.S. Environmental Protection Agency's (EPA) New Chemicals Decision-Making Framework. The New Chemicals Coalition, which Bergeson & Campbell P.C. launched in 2017 as a forum for ...
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Fluoropolymer’s Presence in Home, Industrial Settings to Boost Industry Growth 6% by 2024
Although it’s better known to the general public when it’s marketed as a “non-stick coating,” the prevalence of fluoropolymers is expected to grow. According to a recent study from market research firm Mordor Intelligence, the non-stick coatings market will see a compounded annual growth rate of just under six percent from 2019 through 2024. Fluorotherm, which brings ...
By Fluorostore
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Effect of three non–protein thiols on CHO cells exposed to low doses of X–radiation
The goals of this study were to determine whether cysteamine, β–mercaptohetanol and glutathione protect CHO K1 cells against chromosomal aberrations induced by low doses of X–radiation, as well as whether radiation protection is related to physical properties of those thiols. Experimental design included four different treatments: (a) control, (b) cells treated with 5 mM of each thiol, (c) cells ...
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EPA Covers Confidential Chemicals
On June 21, 2018, the U.S. Environmental Protection Agency (EPA) issued guidance to assist companies in creating structurally descriptive chemical names for substances whose specific chemical identities are claimed confidential and for listing substances on the Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Because the need to retain chemical identity confidentiality is ...
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Environmental impact in 3 numbers
Wouldn’t it be wonderful if the environmental impact of a molecule could be summed up in a few numbers? Such a dream is, of course, impossible, but there is one approach that goes a long way towards this dream. It’s not a new approach, and it is in wide use across a large range of chemical applications, but only recently have the tools become available for it to be applied routinely to a large ...
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A new bisphenol a derivative for estrogen receptor binding studies with surface plasmon resonance
A new bisphenol A (BPA) derivative was synthesized and was immobilized onto the surface of a CM5 sensor chip for the binding study with orphan estrogen‐related receptor (ERRγ) using the surface plasmon resonance (SPR) technique. The kinetic parameters including dissociation and association constants, and, dissociation and association rate constants were investigated. Moreover, a competitive ...
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Silver-titania/polyurethane composite nanofibre mat for chemical and biological warfare protection
The silver-titania nanoparticles with various silver contents were prepared by introducing the silver onto titania surface. Presence of silver was confirmed by various analyses. Compared to neat titania nanoparticle, the silver-titania nanoparticle exhibits better visible light photocatalytic degradation of methylene blue. Loading of silver onto titania leads to an enhancement of the visible ...
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Polymer Concrete for Structural Restoration and Corrosion Protection of Concrete Support Columns
Introduction A large copper mine and refinery in the western United States had a dilemma. Their cell house, which contains over 1,500 cells, each holding more than 20,000 gallons of electrolyte, had experienced severe corrosion and structural degradation of the support columns for the tanks. These columns support the cells in their solvent extraction and electrowinning process. This process ...
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Refractory Ceramic Foam Filter
Refractory Ceramic Foam Filter removes small and suspended non-metallic inclusions in molten aluminum and aluminum alloys, captures the inclusions, and purifies the metal. Ceramic Foam Filter has many advantages such as good chemical stability, high specific strength, high temperature resistance, thermal shock resistance, large specific surface area, etc., and is widely used in metallurgy, ...
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Fugitive emissions control total quality management
Environmental problems such as control of emissions have become increasingly important for manufacturers, so that, for Union Carbide, they have been elevated to the centre of the company's policies. This article shows how, through a firm resolve and the application of total quality management, companies can work towards solving these environmental problems.Keywords: benchmarks, chemical ...
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Benefits of Protecting Groups in Organic Synthesis
In organic synthesis, a molecule may contain two or more functional groups. In order to prevent one of the functional groups from being destroyed by the reaction, a certain reagent is often used to protect it first, and the protective agent will be removed after the reaction is completed. The protection of hydroxyl, amino and amino groups are most commonly seen. There are many types of protective ...
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Quantum dots exhibit less bioaccumulation than free cadmium and selenium in the earthworm Eisenia andrei
This work addresses the bioaccumulation behavior of cadmium selenide quantum dots (QD) by Eisenia andrei earthworms in a terrestrial environment. Earthworms were exposed to QD‐treated soil for up to four weeks, and analyzed for cadmium and selenium concentration using inductively coupled plasma mass spectrometry. Results were compared to earthworms exposed to cadmium nitrate and selenious acid, ...
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HOT!... in this case we are talking about hot-dip galvanisation
For many years now, all BBA Pumps frames and canopies are supplied with a hot-dip galvanised coating. Every BBA Pump user, wherever they may be located in the world, understands and appreciates the value of this durable, environmentally friendly and unique method of steel protection. The hot-dip galvanising process The galvanising process follows several steps: after degreasing, pickling, ...
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Modeling the adsorption of emerging contaminants on activated carbon: classical and quantum QSAR approaches
The adsorption of 115 emerging contaminants, mainly organic chemicals identified by the US Environmental Protection Agency's 2009 Contaminant Candidate List 3, was ranked using two published classical quantitative structure-activity relationship (QSAR) models and a newly developed quantum QSAR model. Approximately 75% of the investigated contaminants were predicted to be ...
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Bloomberg BNA Daily Environment Report Quotes Richard Engler In “No Insights in EPA Notices on 19 New Chemicals on Market”
On April 25, 2017, Bloomberg BNA Daily Environment Report included comments by Richard E. Engler, Ph.D., Senior Chemist at Bergeson & Campbell, P.C. (B&C®), commenting on the 19 new chemicals that have been given market approval by the U.S. Environmental Protection Agency (EPA) between December 1, 2016, and February 28, 2017. The EPA has notified the manufacturers that asked to make ...
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