Agglomerated particles tend to adhere to and grow and plate-out on all surfaces they contact, such as reactor discharge lines, as well as any heat transfer equipment being used to remove the exothermic heat of polymerization, which is critical since low temperature reaction conditions must be maintained. (allindianpatents.com)
Where complete protection against hazardous gases, liquids and particles is of the utmost priority, this lightweight garment is the suit of choice. (draeger.com)
Atoms3
Chlorine atoms (Cl) are highly reactive and can strongly influence the abundances of climate and air quality-relevant trace gases. (nature.com)
The chemical formula identifies each constituent element by its chemical symbol and indicates the number of atoms of each element found in each discrete molecule of that compound. (niir.org)
Phenols substituted with one or more chlorine atoms in any position. (lookformedical.com)
CONTAMINANTS4
Klozur® SP is the oxidant of choice for in situ chemical oxidation (ISCO), because of its ability to treat a wide range of contaminants including chlorinated solvents, petroleum hydrocarbons and PAHs. (fmc.com)
In situ chemical oxidation (ISCO) is the introduction of an oxidant into the subsurface for the purpose of oxidizing contaminants in soil and groundwater. (fmc.com)
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment. (lookformedical.com)
The fish and plant communities in a pond contaminated with polychlorinated biphenyls (PCBs) in East Tennessee, USA, were manipulated to reduce ecological and human-health risk associated with exposure to the chemical contaminants. (bvsalud.org)
Organic1
Furthermore, the rise in industrial activities, especially those that use secondary compounds and high amounts of water in their processes, has increased the concentration in water sources of pollutants, such as metals, radioactive materials, halogenated compounds, persistent organic pollutants, and bioaccumulative and toxic chemicals, such as pesticides. (ncsu.edu)
Solvent1
A chloroalkane with two isomers (1,1,1- TCA and 1,1,2 - TCA) used widely as a solvent, especially in the electronics industry. (fmc.com)
Compounds2
The approach was designed to remove the lower molecular weight compounds, which are the more soluble and mobile fraction of the contamination, via chemical oxidation while cementing the remaining higher molecular weight fraction of the tar in place. (fmc.com)
2020) Extraction and phytoanalysis of chemical compounds of Eucalyptus globulus leaf native to Dehloran, Ilam province, Iran by HS-SPME and GC-MS. Advances in Animal and Veterinary Sciences. (ac.ir)
Toxic2
A colorless liquid that is mobile in groundwater, toxic at low levels, and has a high density, making cleanup activities more difficult than for oil spills. (fmc.com)
The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals. (lookformedical.com)
Synthesis3
Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. (lookchem.com)
Fermentation has been considered the preferred method for producing high-purity lactic acid in the industry over chemical synthesis. (springeropen.com)
Cyclohexanone is the main intermediate for the synthesis of caprolactam and adipic acid, and it is also a raw material for the preparation of spices, rubber antioxidants, adhesives, vinegar and fruit preservative phenolic phenol, and can also be used as fine chemical auxiliaries. (blogspot.com)
Substances2
These discharged substances from industries contaminate waters, and the increase of normal concentrations of microorganism had raised concerns, leading to the generation of regulations that would enhance public health and improve water quality. (ncsu.edu)
Lactic acid has become one of the most important chemical substances used in various sectors. (springeropen.com)
The majority of industrial production of lactic acid today relies on the fermentation process, and its development has continued to grow rapidly in industries, particularly in terms of technological process and methodological innovation. (springeropen.com)
Chloride4
Commonly known by its old name ethyl chloride, it is a colorless, flammable gas or refrigerated liquid with a faintly sweet odor. (fmc.com)
0005] Industry has generally accepted widespread use of a slurry polymerization process (to produce butyl rubber, polyisobutylene, etc.) in the diluent methyl chloride. (allindianpatents.com)
Typically, the polymerization process extensively uses methyl chloride at low temperatures, generally lower than -90°C, as the diluent for the reaction mixture. (allindianpatents.com)
Methyl chloride also has suitable freezing and boiling points to permit, respectively, low temperature polymerization and effective separation from the polymer and unreacted monomers. (allindianpatents.com)
Separation1
Traditionally, the separation of lactic acid from fermentation broth was done through chemical precipitation, but the negative implication of gypsum generation on environmental issues (Seong et al. (springeropen.com)
Exposure1
Uncontrolled release of a chemical from its containment that either threatens to, or does, cause exposure to a chemical hazard. (lookformedical.com)
Industrial3
A common source of the contaminant in drinking water is from the discharge from industrial chemical factories. (fmc.com)
A chemical by-product that results from burning or incinerating chlorinated industrial chemicals and other hydrocarbons. (lookformedical.com)
The CPS 5900 provides excellent protection against a broad range of industrial chemicals as well as warfare agents. (draeger.com)
Drinking water1
The World Health Organization (WHO) has provided recommendations for the levels of each contaminant, and these can be found in the Guidelines for Drinking-water Quality, 2011 (World Health Organization 2014). (ncsu.edu)
Typically1
As a result, current state-of-the-art air quality models do not typically implement such chemistry, and therefore, cannot reproduce the observed high daytime Cl 2 levels in polluted regions 7 , 22 . (nature.com)
Chemistry1
Temperature, diluent polarity, and counterions affect the chemistry of propagation. (allindianpatents.com)
Production2
The material and production quality allow for a ten-year shelf life. (draeger.com)
Sodium tungstate is an important chemical raw material and an important intermediate product in tungsten metallurgy production. (blogspot.com)
Range1
Whether taking pre entry measurements, transferring liquids, or responding to emergencies: Dräger offers a large range of chemical protective suits - tailor-made for a large variety of application areas. (draeger.com)
Human1
Also, some local authorities have generated their own standards, such as the European Union's Directives on the Quality of Water intended for Human Consumption (The European Commission 2015), where they considered the WHO recommendations and some other ISO standards to set the parameters values that should be followed by all of their members for 5 microorganisms and 35 principal components. (ncsu.edu)
High3
As water quality is a global concern, the use of natural and sustainable materials is fundamental to obtain high value products that can remediate water systems without generating other pollution sources or require extra energy inputs or high side costs. (ncsu.edu)
High temperature destruction of waste by burning with subsequent reduction to ashes or conversion to an inert mass. (lookformedical.com)
AH receptors are identified by their high-affinity binding to several carcinogenic or teratogenic environmental chemicals including polycyclic aromatic hydrocarbons found in cigarette smoke and smog, heterocyclic amines found in cooked foods, and halogenated hydrocarbons including dioxins and polychlorinated biphenyls. (lookformedical.com)
Made1
Formulation is a key process in the overall life cycle so that products are delivered that is of the right quality, at a competitive cost, and is made available within the specified time scale. (niir.org)
Metal1
The total amount of a chemical, metal or radioactive substance present at any time after absorption in the body of man or animal. (lookformedical.com)
Method1
The traditional way to produce cyclohexanone is to produce cyclohexanol by hydrogenation of cyclohexanol, and then to reduce the cyclohexanol to the ring chamber by chemical method. (blogspot.com)
Normal1
In addition, global warming has led to an increase in temperature of water, which has affected the normal lifecycles of bacteria and algae, mainly by increasing the duration of bloom seasons. (ncsu.edu)
China1
In this work, we report atmospheric observations of Cl 2 and other chemicals obtained at a polluted coastal site in southern China during autumn 2018. (nature.com)