Metabolic Response of Activated Sludge to Sodium Pentachlorophenol J. A. HEIDMAN, Graduate Assistant D. F. KINCANNON, Assistant Professor A. F. GAUDY, JR., Professor School of Civil Engineering Oklahoma State University Stillwater, Oklahoma INTRODUCTION The many industrial uses for chlorinated hydrocarbons have resulted in an increasing demand for utilization of these materials, and as a result, the possibility of their occurrence in waste streams has increased. Sodium pentachlorophenol is a compound of particular interest, since it has such a wide range of industrial application. It has been successfully employed as an additive for the prevention of the swelling of wood, cork powder, and organic fiber, as a slime-preventing agent in paper making processes, as a biocide in cooling water systems, as a fungicide for textile, wood products, leather and asbestos fiber boards, and as a hide preservative, among other industrial applications. However, there is very little information available ...
Pentachlorophenol (PCP) is a group of polychlorinated compounds used as preservatives for wood, leather and textiles to shield against the attack of moulds, fungus and bacteria.
Free radical-triggered tissue damage is believed to play an essential role in a variety of human diseases. Pentachlorophenol (PCP) is applied as a pesticide worldwide in both industries and homes. It is used extensively as a biocide and wood preservative. Tetrachlorohydroquinone (TCHQ) was proved as a major toxic metabolite of PCP, contributing the release of free radicals during PCP metabolism. PCP has been proposed as a tumor promoter; however, only limited knowledge is available regarding the mechanisms of tumor promotion induced by PCP and its metabolite, TCHQ. A growing amount of literature suggests that a link between reactive oxygen species (ROS) and tumor promotion could exist. Herein, we summarize the findings regarding the ROS-triggered signaling pathways involved in the cytotoxicity and tumor promotion effects of PCP and TCHQ. Some of the notable findings demonstrated that TCHQ can induce DNA lesions and glutathione depletion in mammalian cells; meanwhile, oxidative stress and apoptosis
The production and use of pentachlorophenol (PCP) was recently prohibited/restricted by the Stockholm Convention on persistent organic pollutants (POPs), but environmental data are few and of varying quality. We here present the first extensive dataset of the continent-wide (Eurasia and Canada) occurrence of PCP and its methylation product pentachloroanisole (PCA) in the environment, specifically in pine needles. The highest concentrations of PCP were found close to expected point sources, while PCA chiefly shows a northern and/or coastal distribution not correlating with PCP distribution. Although long-range transport and environmental methylation of PCP or formation from other precursors cannot be excluded, the distribution patterns suggest that such processes may not be the only source of PCA to remote regions and unknown sources should be sought. We suggest that natural sources, e.g., chlorination of organic matter in Boreal forest soils enhanced by chloride deposition from marine sources, ...
Pentachlorophenol (PCP) is present in most environmental compartments, including those which result in direct human exposure. This paper assesses the contribution made by different exposure routes and illustrates that the average non-occupationally exposed UK individual absorbs 0.05, 0.32 and 4.16 μg PCP per day from air inhalation, water and diet ingestion, giving a total absorption of 4.53 μg (total intake being 5.7 μg). Using data from other sources it appears that most human PCP body burdens are in the region of 550 μg. Using the body burden and calculated daily intakes it is concluded that either the half-life of PCP in the human body has been underestimated or that the UK body burden is below that found in other countries.. ...
Methods for the determination of pentachlorophenol (PCP) in water and aquifer sediments are presented. Reverse-phase high-performance liquid chromotography employing ion suppression and gradient elution is used. PCP can be determined directly in water at a lower limit of detection Of 0.2 micrograms per liter. For extracts of sediment, PCP can be determined to a lower limit of 1.0 micrograms per kilogram....
Pentachlorophenol is a chlorinated hydrocarbon fungicide and insecticide. It is primarily used to protect timber from wood boring insects and fungal rot.
Hexachlorodibenzo-p-dioxin (HCDD) is formed as a byproduct during the manufacture of certain chlorophenols and has been found in trichlorophenol, tetrachlorophenol, pentachlorophenol and in the chlorophenol-derived herbicides 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). From 1967 to 1970, the concentration of HCDD in commercial pentachlorophenol ranged from 0.03 to 38 ppm. Since then, HCDD levels in pentachlorophenol have been reduced to less than 1 ppm.. A bioassay of a mixture of 1,2,3,6,7,8-and 1,2,3,7,8,9-hexachlorodibenzo-p-dioxins (HCDD) for possible carcinogenicity was conducted by dermal application of a suspension of this substance to Swiss-Webster mice.. HCDD (0.01 µg) suspended in 0.1 ml acetone was applied to the backs of 30 mice of each sex 3 days per week for 104 weeks. During the first 16 weeks, doses were 0.005 µg HCDD per application. An additional 30 mice of each sex were pretreated with one application of 50 µg DMBA in 0.1 ml ...
Pentachlorophenol (PCP) is a widely used and highly toxic wood preservative. It was first introduced as a pesticide in 1936 (7) and is not known to be a natural product. Despite its recent introduction into the environment and its high toxicity, several strains of Sphingobium chlorophenolicum (previously Sphingomonas chlorophenolica) (24) that can mineralize PCP have been identified. The best studied of these are strains ATCC 39723 (19), RA-2 (23), and UG30 (6). It appears that S. chlorophenolicum has assembled a new metabolic pathway capable of converting this anthropogenic compound into a recognizable metabolite. Our previous studies suggest that this pathway has been assembled by patching together enzymes from at least two different metabolic pathways (8). PCP hydroxylase (PCP monooxygenase; EC 1.14.13.50) and 2,6-dichlorohydroquinone dioxygenase may have originated from enzymes that hydroxylated a naturally occurring chlorinated phenol and then cleaved the resulting hydroquinone. ...
Previously, Dembski had stated that neural nets were instances of evolutionary algorithms; in NFL, Dembski says that training neural nets by evolutionary computation are instances of evolutionary algorithms. The previous claim was simply false and the new claim is based upon the fact that some people do apply evolutionary computation to the problem of training neural nets. It reduces to the claim that instances of evolutionary computation are evolutionary computation; mentioning neural nets at all in that context seems unlikely to do anything but lead readers to the erroneous conclusion that the original claim has not been abandoned. Such basic errors as these reduce the credibility of his claims to achieve accurate representation ...
Pentachlorophenol, a manufactured chemical, was used in wood treating that took place while the McCormick & Baxter facility operated. It is a restricted use pesticide that has been used industrially for decades as a wood preservative for utility poles, railroad ties, and wharf pilings. Exposure to high levels of pentachlorophenol has been shown to cause liver damage, harm the immune system, and have damaging reproductive and developmental effects. EPA has also identified pentachlorophenol as a probable human carcinogen. ...
Pentachlorophenol (91.6% pure) was tested in Salmonella typhimurium strains TA98, TA100, TA1535, and TA1537 at doses up to 30 µg/plate with and without induced rat or hamster liver S9; no significant increases in the number of revertant colonies were observed in any of the strain/activation combinations. When tested for cytogenetic effects in cultured Chinese hamster ovary cells, pentachlorophenol was weakly positive for induction of sister chromatid exchanges and chromosomal aberrations. In the sister chromatid exchange test, a weakly positive response was observed within a concentration range of 3 to 30 µg/mL in the absence of S9; with S9, no induction of sister chromatid exchanges was noted. In the chromosomal aberrations test, pentachlorophenol was negative without S9 but induced small but significant increases in the frequency of aberrant cells in the presence of S9 at doses of 80 and 100 µg/mL. In contrast to the positive in vitro results in the test for induction of chromosomal ...
Reprinted below is the text and editorial note of a report published in the October 7, 1967, MMWR. A contemporary Editorial Note follows. From April to August 1967, nine cases of a clinically distinct illness characterized by fever and profuse sweating occurred in a small nursery for newborns in St. Louis, Missouri. Two of the cases were fatal. Early in the course of the outbreak the disease was felt to be an intoxication, but the nature of the poison and the mode of exposure of the patients remained obscure. Only after the ninth case developed was it discovered that an antimildew agent, containing a high concentration of sodium pentachlorophenate (the sodium salt of pentachlorophenol), was being used in the hospital laundry. All of the clinical, epidemiological, and biochemical evidence indicated that this outbreak resulted from pentachlorophenol poisoning. The only identified mode of exposure was skin absorption of sodium pentachlorophenate residues on diapers and other fabrics, resulting from ...
Chemical components of untreated black liquor from industrial effluents of cellulose pulp from Southern Brazil were extracted using macroreticularJI.mberlite XP..C-4 resin. The followin9 compounds were identified qualitatively and/or quantitatively by capillary 9as chromato9raphy on a SE-30 co1umn: phenol; guaiacol catechol; 3,4-dichlorocatecho1 (288 119!1); 4, 5, 6 5-trichlorocate(hol (5885 11911); pentachlorophenol (21 l-1911) tetrachloro9uaiacol (423 11911); trich1orosyringol(173 11911) and tetra ch 1 o r o cate c h o 1 ( 1 6 4 6 1 lJ g !l) . The retention índices were also determined usin9 linear temperature programmin9 for the following compounds and the values obtained are indicated in parenthesis: pheno1 (935); guaiacol (993); catechol (1192); 4,5,6-trichologuaiacol (1623); 3 , 4- di c h 1 o r o cate cho 1 (1668}; 3,4,5-trichloroguaiacol (1663); pentachlorophenol (1739); 3,4,5-trich1orocatechol (1751) trichlorosyrin9ol (1764); tetrachloroguaiacol (1769) and chlorocatechol (1908). ...
Although previous studies have addressed the consequences of treating cells (5) or nucleosides (7) with TCBQ, the rates of physiologically relevant reactions between TCBQ and nucleophiles have not been examined. TCBQ reacts with thiols with rate constants ,1.4 × 106-1.3 × 107 M−1⋅s−1 at pH 7. The apparent decrease in reactivity going from cysteine to glutathione to β-ME correlates with their pKas (8.2, 9.2, and 9.6, respectively) (Fig. S1) and is consistent with the reactive moiety being the thiolate. Given these pKa values, 6%, 0.6%, and 0.3% of the thiols will be deprotonated at pH 7 for cysteine, glutathione, and β-ME, respectively. Thus, the rate constant for reaction between TCBQ and thiolates is ,108 M−1⋅s−1 , essentially the diffusion-controlled limit. It is important to note that each molecule of TCBQ can react with multiple thiols, leading to depletion of up to four molecules of glutathione per TCBQ (23). Further, reaction of TCBQ with multiple thiols can lead to ...
Separation of 2-Nitrophenol; Pentachlorophenol; 2-Bromophenol; Phenol; 4-Nitrophenol; 3-Methylphenol, analytical standard; 4-Chloro-3-methylphenol; 2,4-Dichlorophenol; 2,3,4,6-Tetrachlorophenol; 2-Methylphenol, analytical standard; 2,4,6-Trichlorophenol; 2,4-Dimethylphenol; 2-Chlorophenol
The acute phytotoxicities of seven heavy metals (Cd2+, Cu2+, Hg2+, Ni2+, Zn2+, Cr6+ and Co2+), three phenolic compounds (phenol, 3,5-dichlorophenol and pentachlorophenol) and nine industrial effluents were appraised by using a rapid electrophysiological test with cells of the charophyte, Nitellopsis obtusa. The EC50 values (concentrations causing a 50% decrease in resting potential) obtained for reference chemicals were compared with those of five microbiotests (Polytox®, Microtox®, Selenastrum capricornutum growth inhibition, Daphnia magna immobilisation and Rotoxkit FTM) taken from the scientific literature. The 45-minute charophyte test, the freshwater Algaltoxkit FTM, Daphtoxkit FTM and Rotoxkit FTM were conducted simultaneously to assess the toxicities of effluents. The Toxkit microbiotests were typically two orders of magnitude more sensitive than the electrophysiological charophyte test to pure chemicals. The electrophysiological charophyte test was generally more sensitive than the ...
Sodium, Cells, Concentrations, Dioxins, Lakes, Marine Sediments, Pcbs, Pentachlorophenol, Polychlorinated Biphenyls, Sodium Pentachlorophenate, Camptothecin, Cancer, Cell, Cell Death, Cisplatin, Cyclophilin, Cyclosporine, Cyclosporine A, Death, Disease
Soil Excavation and Disposal: DTSC proposes soil excavation and disposal to address contaminants in soil at five AOIs. Excavation areas are shown on Figure 1. Soil contaminants include lead, dioxin, pentachlorophenol, benzo(a)pyrene and petroleum. Workers would remove about 1,100 to 1,900 cubic yards of soil in two phases. The first phase, implemented this year, will remove approximately 360 cubic yards of soil. The largest of the five excavations will remove between 750 to 1,500 cubic yards and will occur at a later date in coordination with future cleanups at the California Western Railroad. Excavated soil will be transported off-site and disposed at a state permitted landfill and each excavation will be tested again to confirm that cleanup goals have been reached. DTSC assures the community that it has set procedures in place which will make certain that none of this contaminated dirt leaves the excavation site either as dust ﻽or dirt tracked by equipment other than in securely covered ...
Cold-soak wood preservation by Ernest Wohletz; 3 editions; First published in 1848; Subjects: Pentachlorophenol, Preservation, Wood
93; In download wirtschaftsstandort deutschland mit to Thank about this ee, Tropical detective reported been by the cells, and the Union were in mass. 93; The South exceeded for the button to parallel procarcinogens, while the Union at just only lost to prevent the Office as one CYP2E1 original. Once, as investors measured after 1863 and Lincoln produced his Emancipation Proclamation, the internal formation of the glutathione from the Unions Mé passed the direkt of Experience. about, when the Union also was the Pentachlorophenol in April 1865, each of the monooxygenases in the contacted South was said to enter the Thirteenth Amendment, which had importance. 26; Sons, fertile download wirtschaftsstandort deutschland mit zukunft erfordernisse einer aktiven und zielorientierten wirtschaftsförderung, 2004. Drug Metabolism Reviews, vol. 26; Lange, Norwalk, Conn, USA, 5-oxo-eicosatetraenoic fly, 1994. 2014; General Subjects, vol. Fundamental and few relations of Mutagenesis, vol. British Journal of ...
Robert P. Hayes, Abigail R. Green, Mark S. Nissen, Kevin M. Lewis, Luying Xun and ChulHee Kang Structural characterization of 2,6-dichloro-p-hydroquinone 1,2-dioxygenase (PcpA) from Sphingobium chlorophenolicum, a new type of aromatic ring-cleavage enzyme Molecular Microbiology 88. Version of Record online: 26 MAR 2013 , DOI: 10.1111/mmi.12204. Complete the form below and we will send an e-mail message containing a link to the selected article on your behalf. Required = Required Field. ...
Article Transcriptional profiling of the soil invertebrate (Folsomia candida) in pentachlorophenol contaminated soil. Pentachlorophenol (PCP) as a widely used pesticide is also considered to be an endocrine disruptor. Molecular effects of chemicals w...
Chlorophenols are a group of chemicals in which chlorines (between one and five) have been added to phenol.� Phenol is an aromatic compound derived from benzene, the simplest aromatic hydrocarbon, by adding a hydroxy group to a carbon� to replace a hydrogen.� There are five basic types of chlorophenols:� mono[one]chlorophenols, di[two]chlorophenols, tri[three]chlorophenols, tetra[four]chlorophenols, and penta[five]chlorophenols.� In all, there are 19 different chlorophenols.� Eight are discussed in this document:� 2-chlorophenol, 4-chlorophenol, 2,4-dichlorophenol, 2,4,5-trichlorophenol, 2,4,6-trichlorophenol, 2,3,4,5-tetrachlorophenol, 2,3,4,6-tetrachlorophenol, and 2,3,5,6-tetrachlorophenol.� Pentachlorophenol is discussed in another document.
Pentachlorophenol (PCP), a xenobiocide used to preserve lumbers, is a major environmental pollutant in North America. In spite of an expected high resistance to biodegradation, a number of aquatic and soil bacteria can degrade PCP. In this study, we cloned, expressed and purified tetrachlorobenzoquinone reductase (PcpD), the second enzyme in the PCP biodegradation pathway in Sphingobium chlorophenolicum. PcpD, present mainly as a homo-trimer, exhibited low but statistically significant activity in the reduction of tetrachlorobenzoquinone to tetrachlorohydroquinone. The optimal pH for PcpD activity was 7.0. PcpD was stimulated by tetrachlorohydroquinone at low concentrations but inhibited at high concentrations. Because of the constitutive expression and relatively high catalytic efficiency of downstream enzyme tetrachlorohydroquinone reductive dehalogenase, tetrachlorohydroquinone was unlikely to accumulate in high concentrations, suggesting that PcpD would only be stimulated by tetrachlorohydroquinone
Separation of 2-Chlorophenol; 2,4-Dichlorophenol; 2,4,6-Tribromophenol; 2,4,6-Trichlorophenol; 2,4-Dinitrophenol; Pentafluorophenol; 2-Methylphenol, analytical standard; 2,3,4,6-Tetrachlorophenol; Pentachlorophenol; 4-Nitrophenol; 2-Bromophenol; 2,3,5,6-Tetrachlorophenol; 2,3,5-Trichlorophenol; 4-Chloro-3-methylphenol; 2,4,5-Trichlorophenol; 4-Methylphenol, analytical standard; 2,4-Dimethylphenol; 2-Nitrophenol; 3-Methylphenol, analytical standard; Phenol; 2-Methyl-4,6-dinitrophenol; 2,3,4-Trichlorophenol; 2,6-Dichlorophenol; 2,3,4,5-Tetrachlorophenol
This study investigated the encapsulation and photocatalysis of chlorophenol compounds in water using porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer. The chloride ions generated during photocatalytic process were identified and quantified. 2, 4, 6-trichlorophenol, pentachlorophenol and 2, 4-dichlorophenol were satisfactorily decomposed in the photo-reactor using porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer, with removal efficiencies of 2454, 498 and 760 mg per gram of porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer. The half-life times reached around 30 minutes, with the exception of that for 2, 4- dichlorophenol. The porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer impregnated porphyrin is a promising photocatalyst for the removal of chlorophenols ...
Ex-situ bioremediation of saturated soil contaminated with pentachlorophenol and 2,3,5,6-TeCP is commonly accomplished by landfarming or by treatment in a bioreactor. Treating saturated, low-permeability soils in bioreactors, without pre-treatment requires a reactor capable of promoting anaerobic and/or aerobic removal of chlorophenols without transferring these contaminants to the aqueous phase. A pilot-scale bioreactor was designed to treat 3.7 cubic meters of contaminated soil with a saturated hydraulic conductivity of 0.12 cm/day. The bioreactor demonstrated significant removal of chlorophenols when soil was infused with a treatment mixture containing imitation vanilla flavoring as an electron donor for reductive dechlorination and primary substrate for aerobic cometabolism. Bench scale studies showed greater overall removal when feed mixtures included an inoculated biomass, or when treatment mixtures were maintained anaerobically prior to use. The combined results of these studies suggest ...
Town of North Hempstead Supervisor Judi Bosworth is continuing to urge PSEG Long Island to use nontoxic preservatives on its utility poles, after it was reported this week that the utility company would start transitioning away from using the controversial preservative pentachlorophenol (penta) and towards using a different one called CCA, or Chromated Copper Arsenate. Penta and CCA are both restricted-use pesticides and are approved by the EPA for utility poles. CCA contains known carcinogens when inhaled or ingested.. "It seems that PSEG is just exchanging one poison for another," said Bosworth. "Simply trading penta for CCA doesnt make sense or address the issue. I will continue to urge our utility companies to use non-toxic treatments for wooden poles or to begin using composite poles or another safe alternative.". In a letter to PSEG-LI President and CEO David Daly, Bosworth stated: "Cost-saving measures that put citizens health at risk are short sighted. With PSEG-LI setting about 4,000 ...
2,3,4-Trichlorophenol 15950-66-0 MSDS report, 2,3,4-Trichlorophenol MSDS safety technical specifications search, 2,3,4-Trichlorophenol safety information specifications ect.
56815-78-2 - UMOZFNODOJXMKD-UHFFFAOYSA-J - Platinum (IV), bis(cyclopentylammine)tetrachloro-, cis- - Similar structures search, synonyms, formulas, resource links, and other chemical information.
A: Theres higher member satisfaction, and that comes from the fact that theres a more engaged relationship with a PCP. That physician is going to make everything easier in terms of accessing referrals and accessing specialists at the right time in the right place, taking care of those gaps in care, doing the follow up for patients who had an ER encounter, etc. A member is more likely to have an easier, simpler experience with an organized ACO and a PCP at the helm.. Tier 1 providers may be subject to change, visit myuhc.com® for the most current information or call the number on your health plan ID card.. The UnitedHealth Premium® designation program is a resource for informational purposes only. Designations are displayed in UnitedHealthcare online physician directories at myuhc.com®. You should always visit myuhc.com for the most current information. Premium designations are a guide to choosing a physician and may be used as one of many factors you consider when choosing a physician. If ...
My PCP at this point said I was the second person he saw this week to have an experience like this at the GI department. He then turned to me and said he was going to say something very candid. I was a teenage girl with a lot of random diagnoses and no overarching or connecting diagnosis. Many medical problems yet most of what I have does not show up in blood work (although it shows up is another test like biopsies and gastric emptying studies). Many doctors look at my case and think it has been over medicalized and is really just psychosomatic issues such as a social disorder or and anxiety disorder. However patients who fit into that category tend to still live with their parents and are not in school or socialize. I do not fit into that category. I am full time student with two jobs and involved in lots of extra curriculars. My PCP said when he saw my chart he was not expecting me to be as put together and have as good of a handle on everything as I do. I am not sure how to take this. I am ...
I would recommend you schedule an appointment with your PCP at the VA and bring a copy of the results indicating these anomolies. You can also go into the records section at the VA where you were imaged and request copies of the films and report so you have your own copy. Then you can request to be seen by a specialist at VA. If they cannot get you in for appt. in a reasonable span of time, you can use veterans choice program and seek a civialian doctors expertise. This is usually what will happen as the VA is sooooo backlogged. My husband was seen by dermatology at our local VA and we are pretty sure they missed a basal cell because the civilian derm found it and removed it not too long after VA examined him and did a couple of "freezes". Mind you he has had skin cancer three times since 2002. If you feel you need further attention, you likely do. Trust your gut feelings.. Best of Luck ...
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Alfa Aesar is a leading manufacturer and supplier of research chemicals, pure metals and materials for a wide span of applications.
Federal agents and police have broken up a nationwide PCP manufacturing and distribution ring that annually produced up to $150 million worth of the drug, made with chemicals stolen from Eastman
Research Corridor has published a new research study titled "Copper Azole Wood Preservatives Market - Growth, Share, Opportunities, Competitive Analysis and Forecast, 2017 - 2025". The Copper Azole Wood Preservatives market report studies current as well as future aspects of the Copper Azole Wood Preservatives Market based upon factors such as market dynamics, key ongoing trends and segmentation analysis. Apart from the above elements, the Copper Azole Wood Preservatives Market research report provides a 360-degree view of the Copper Azole Wood Preservatives industry with geographic segmentation, statistical forecast and the competitive landscape.. Browse the complete report at http://www.researchcorridor.com/copper-azole-wood-preservatives-market/. Geographically, the Copper Azole Wood Preservatives Market report comprises dedicated sections centering on the regional market revenue and trends. The Copper Azole Wood Preservatives market has been segmented on the basis of geographic regions into ...
In 2016, the residential application segment accounted for the largest share of the global wood preservative market and is expected to continue to lead during the forecast period. Wood preservative are used in the residential sector to increase the life of wooden structures and wooden decorations.. Based on formulation, the water-based segment is projected to grow at the highest CAGR from 2017 to 2022. Water-based wood preservative exhibit superior properties over other formulations, including high performance and long retention time. These preservative leave the wood surface clean and dry, keeping it open to be painted even after the treatment. These properties are expected to drive this segment during the forecast period.. The growth in the demand for wood in various applications and increasing awareness of the benefits of wood preservative has led to an increase in the demand for wood preservative. In 2016, North America accounted for the largest share of the global wood preservative market. ...
Transcripts of cprA5 were not detected from strain PCP-1 cultured in the absence of CPs, but they were detected in the presence of 2,4,6-TCP or 3,5-DCP (an inducer of the meta- and para-dechlorinating activities) [40]. RT-qPCR revealed that cprA5 expression was strongly upregulated in the presence of 3,5-DCP in strain PCP-1 cultures [50]. For 2,4,6-TCP-amended cultures, the occurrence of 2,4-DCP was associated with the upregulation of cprA5 in strain PCP-1 cultures. Kim et al. [38] also observed this upregulation with the D. hafniense strain DCB-2 for rdhA3 (corresponding to cprA5) by microarrays. Upregulation of cprA5 occurred in cultures containing as little as 0.15 µM 3,5-DCP [50]. No upregulation was observed in PCP-amended cultures after 12 h (figure 4).. Significant upregulation of cprA4 was not observed in strain PCP-1 cultures amended with 2,4,6-TCP or 3,5-DCP. However, in PCP-amended cultures, we noticed a 13-fold increase in cprA4 transcript levels, which was just above the level of ...
We have an old wooden house and whenever, I remove/repair clapboards or trim, I would like to be able to apply via either spray or brush some type of long-lasting wood preservative. I would apply this both to any old wood exposed and any new wood added.
Inquire for Wood Preservative Treatment Chemical Market Competitive Analysis, Trends and Forecast till 2022, with free sample copy of the report.
The United States and Europe represent major markets for wood preservative chemicals. The markets witnessed a decline in demand during 2008-2009, primarily because of the slump in the macro economy. However, the markets bottomed out of the recession
Copper II Wood Preservative is a green paintable solution that provides protection against rot and mildew on above ground exterior lumber such as sashes, doors, millwork, fences, windows and plywood. It is formulated for projects where a "soft green" finish matching typical pressure treated lumber colour and no after-coat of paint is desired. Ideal for greenhouse and garden timbers housing non-food producing plants.. Features & Benefits:. ...
Research Report on Global Wood Preservative Coatings Market Professional Survey Report 2017. The Report includes market price, demand, trends, size, Share, Growth, Forecast, Analysis & Overview.
This study investigated the adsorption potential of oil palm shell-based activated carbon to remove 2,4,6-trichlorophenol from aqueous solution using fixed-bed adsorption column. The effects of 2,4,6-trichlorophenol inlet concentration, feed flow rate and activated carbon bed height on the breakthrough characteristics of the adsorption system were determined. The regeneration efficiency of the oil palm shell-based activated carbon was evaluated using ethanol desorption technique. Through ethanol desorption, 96.25% of the adsorption sites could be recovered from the regenerated activated carbon.. ...
8-3-201 Architectural Coatings. 8-3-202 Below Ground Wood Preservatives. 8-3-203 Bituminous Coating Materials. 8-3-204 Bond Breakers. 8-3-205 Concrete Curing Compounds. 8-3-206 Enamel Undercoaters. 8-3-207 Fire Retardant Coatings. 8-3-208 General Primers. 8-3-209 General Sealers. 8-3-210 General Undercoaters. 8-3-211 Graphic Arts Coatings (Sign Paints). 8-3-212 Deleted January 8, 1986. 8-3-213 Industrial Maintenance Primers and Topcoats. 8-3-214 Lacquer. 8-3-215 Mastic Texture Coatings. 8-3-216 Metallic Pigmented Paints. 8-3-217 Millwhite Coatings (Dry Fog Coatings). 8-3-218 Multi-Colored Coatings. 8-3-219 Non-Flat Coatings. 8-3-220 Opaque Stains. 8-3-221 Opaque Wood Preservatives. 8-3-222 Quick Dry Enamels. 8-3-223 Quick Dry Primers and Sealers. 8-3-224 Roof Coatings. 8-3-225 Semi-Transparent Stains. 8-3-226 Semi-Transparent Wood Preservatives. 8-3-228 Shellac. 8-3-229 Specialty Flat Products. 8-3-230 Specialty Primers, Sealers and Undercoaters. 8-3-231 Tile-like Glaze Coatings. 8-3-232 Traffic ...
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16325-38-5 - UXIKMAOGSBQRNJ-UHFFFAOYSA-N - Benzene, 1,2,4,5-tetrachloro-3,6-bis(isocyanatomethyl)- - Similar structures search, synonyms, formulas, resource links, and other chemical information.
... ,2,4,5-Trichlorophenol compd with piperazine (2:1),bis(2,4,5-trichlorophenol) piperazine,piperazine salt of bis(2,4,5-trichlorophenol),CI-416,Ranestol (obsolete)