chemical protection Articles
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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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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 ...
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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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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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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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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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Biological basis for radiation hormesis in mammalian cellular communities
It is now known that low doses and dose rates of certain agents (e.g., radiation and genotoxic chemicals) can induce protective processes that together lead to a reduction in mutations and neoplastic transformation below the spontaneous frequency in mammalian in vitro and in vivo cellular communities. However, after high doses, some of the protection is lost, leading to elevated risks relative to ...
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Low doses of amifostine protect from chromosomal inversions in spleen in vivo when administered after an occupationally relevant X-radiation dose
Amifostine is a chemical radioprotector known to protect cells from DNA damage and toxicity normally induced by high-dose radiation exposure. Here, we used the sensitive in vivo pKZ1 mouse chromosomal inversion assay to determine the radioprotective effect of different doses of amifostine in the presence and absence of 250 mGy whole-body X-irradiation, the present radiation dose limit for ...
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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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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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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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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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Purair Advanced Ductless Fume Hoods
The Purair Advanced Series ductless fume hoods are a series of high efficiency products designed to protect the user and the environment from hazardous vapors generated on the work surface. At the heart of the Purair ductless fume hood product line is the innovative Air Science Multiplex Filtration Technology that creates a safe work environment over the widest range of applications in the ...
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Synthesis and characterisation of nano silica-based coatings for protection of antique articles
Antique articles are endangered by environmental effects such as humidity, UV and variation of temperature. Improved physical surface resistance is in an increasing demand in protection of cultural heritage. One possible way is their protection by suitable hydrophobic coatings. In this work, the experimentation of protective treatments on the soda glass, mud brick and copper, characteristic ...
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Birth of an AccuMax
Head of the AccuMax Family In 2015, we released the AccuMax dispenser as the first in a “family” of dispensers. Our goal is to create a line of innovative, user-friendly dispensers built around real feedback from our customers. So, while we may call the AccuMax our “standard” dispenser, there is really nothing standard about it. It was born, so to speak, from feedback you ...
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Stationary gas detector
Summary: Stationary gas detector is an instrument used to detect the type and concentration of gases in the environment. It determines the type and concentration of gases by detecting their response characteristics. Stationary gas detector is widely used in environmental protection, chemical industry, metallurgy, mining, storage, medical and other fields. The working principle of stationary gas ...
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RC-14001: Unified Solution to EH&S Challenges
How can a business involved in chemicals or petroleum effectively protect its environment, community, workers, and customers? Until recently, a unified strategy for environmental, health, and safety (EH&S) issues was difficult to find or create. Businesses were generally forced to stitch together separate programs for environmental protection, safety, and outreach to neighbors and customers. ...
By AECOM
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Charles Auer Quoted in “Rate of EPA Chemical Regulation Ramps Up Since Toxics Law Update”
On March 18, 2017, Bloomberg BNA Daily Environment Report quoted Charles M. Auer, Senior Regulatory and Policy Advisor with Bergeson & Campbell, P.C. (B&C®), explaining how updates to the Toxic Substances Control Act (TSCA) are impacting new chemical regulations. The Environmental Protection Agency has been regulating more new chemicals since the Toxic Substances Control Act was ...
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Rehabilitation & protection from chemical attack
When Resolute Forest Products was determining a solution for rehabilitation and protection of their 50,000 square foot concrete clarifier damaged from mild chemical attack and abrasion from their pulping process they contacted MBI Corexcel, a local corrosion-resistant specialized contractor, for assistance. General Manager - Pierre Fauteux - called Solhydroc, a long tenured distributor of ...
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Ceramic Membrane Machine Lab & Pilot
The membrane area of CMP pilot machine has the following types: 0.1 m², 0.2 m², 0.5 m², 1 m², 2 m², 3 m², 4.5 m², 5 m², 6 m², 6.5 m², 8 m², 9 m² FEATURES OF CMP PILOT MACHINE Due to higher membrane velocity, reduce the accumulation of pollutants in the membrane surface, increase membrane flux. Good chemical stability, strong acid, ...
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