2-Dimethylaminoethanol
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Choline for a Healthy Pregnancy
To support healthy for a Healthy weight gain and keep up with the nutritional needs of both mom and Pregnancy the developing baby, CHOLINE additional nutrients are necessary. Nine out of 10 Americans don’t meet the daily recommended choline intake of 550 mg1,2 and it can be challenging to reach this goal even when choosing choline-containing foods like beef, eggs, wheat germ and Brussels sprouts. Choline is particularly important during pregnancy for both mom and baby because it supports healthy brain growth and offers protection against neural tube defects. Women are encouraged to take a prenatal supplement before and during pregnancy to ensure they’re meeting vitamin and mineral recommendations. In fact, the American Medical Association recommends that choline be included in all prenatal vitamins to help ensure women get enough choline to maintain a normal pregnancy.3 Look for a prenatal supplement that contains folic acid, iron, DHA (omega-3s), vitamin D and choline. Consider smart swaps to get the most choline in your diet for a healthy pregnancy, as well as optimal health after baby arrives. PREGNANCY EATING PATTERN* CHOLINE-FOCUSED PREGNANCY EATING PATTERN* 1 1 hard-cooked egg 1 2 cups toasted whole grain oat cereal / 1 large peach 1 cup nonfat milk 1 1 slice whole grain bread /3 cup blueberries 1 1 tablespoon jelly /3 cup sliced banana BREAKFAST 1 cup nonfat milk 1 /2 whole grain bagel 1 whole wheat tortilla 2 tablespoons peanut butter 2 tablespoons peanut butter 1 small apple 1 SNACK 1 /2 large banana /2 cup nonfat vanilla Greek yogurt 2 slices whole grain bread 3 oz. -
Monoethanolamine Diethanolamine Triethanolamine DSA9781.Qxd 1/31/03 10:21 AM Page 2
DSA9781.qxd 1/31/03 10:21 AM Page 1 ETHANOLAMINES Monoethanolamine Diethanolamine Triethanolamine DSA9781.qxd 1/31/03 10:21 AM Page 2 CONTENTS Introduction ...............................................................................................................................2 Ethanolamine Applications.........................................................................................................3 Gas Sweetening ..................................................................................................................3 Detergents, Specialty Cleaners, Personal Care Products.......................................................4 Textiles.................................................................................................................................4 Metalworking ......................................................................................................................5 Other Applications...............................................................................................................5 Ethanolamine Physical Properties ...............................................................................................6 Typical Physical Properties ....................................................................................................6 Vapor Pressure of Ethanolamines (Figure 1).........................................................................7 Heat of Vaporization of Ethanolamines (Figure 2)................................................................7 Specific -
Study of Various Aqueous and Non-Aqueous Amine Blends for Hydrogen Sulfide Removal from Natural Gas
processes Article Study of Various Aqueous and Non-Aqueous Amine Blends for Hydrogen Sulfide Removal from Natural Gas Usman Shoukat , Diego D. D. Pinto and Hanna K. Knuutila * Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; [email protected] (U.S.); [email protected] (D.D.D.P.) * Correspondence: [email protected] Received: 8 February 2019; Accepted: 8 March 2019; Published: 15 March 2019 Abstract: Various novel amine solutions both in aqueous and non-aqueous [monoethylene glycol (MEG)/triethylene glycol(TEG)] forms have been studied for hydrogen sulfide (H2S) absorption. The study was conducted in a custom build experimental setup at temperatures relevant to subsea operation conditions and atmospheric pressure. Liquid phase absorbed H2S, and amine concentrations were measured analytically to calculate H2S loading (mole of H2S/mole of amine). Maximum achieved H2S loadings as the function of pKa, gas partial pressure, temperature and amine concentration are presented. Effects of solvent type on absorbed H2S have also been discussed. Several new solvents showed higher H2S loading as compared to aqueous N-Methyldiethanolamine (MDEA) solution which is the current industrial benchmark compound for selective H2S removal in natural gas sweetening process. Keywords: H2S absorption; amine solutions; glycols; desulfurization; aqueous and non-aqueous solutions 1. Introduction Natural gas is considered one of the cleanest forms of fossil fuel. Its usage in industrial processes and human activities is increasing worldwide, providing 23.4% of total world energy requirement in 2017 [1]. Natural gas is half of the price of crude oil and produces 29% less carbon dioxide than oil per unit of energy output [2]. -
Brain Choline Acetyltransferase Activity in Chronic, Human Users of Cocaine
Molecular Psychiatry (1999) 4, 26–32 1999 Stockton Press All rights reserved 1359–4184/99 $12.00 ORIGINAL RESEARCH ARTICLE Brain choline acetyltransferase activity in chronic, human users of cocaine, methamphetamine, and heroin SJ Kish1, KS Kalasinsky2, Y Furukawa1, M Guttman1, L Ang3,LLi4, V Adams5, G Reiber6, RA Anthony6, W Anderson7, J Smialek4 and L DiStefano1 1Human Neurochemical Pathology Laboratory, Centre for Addiction and Mental Health, Toronto, Canada; 2Division of Forensic Toxicology, Armed Forces Institute of Pathology, Washington, DC, USA; 3Department of Pathology (Neuropathology), Sunnybrook Hospital, Toronto, Canada; 4Department of Pathology, University of Maryland, Baltimore, MD; 5Office of the Hillsborough County Medical Examiner, Tampa, FL; 6Northern California Forensic Pathology, Sacramento, CA; 7Office of the Medical Examiner of District 9, Orlando, FL, USA Cognitive impairment has been reported in some chronic users of psychostimulants, raising the possibility that long-term drug exposure might damage brain neuronal systems, including the cholinergic system, which are responsible for normal cognition. We measured the activity of choline acetyltransferase (ChAT), the marker enzyme for cholinergic neurones, in autopsied brain of chronic users of cocaine, methamphetamine, and, for comparison, heroin. As com- pared with the controls, mean ChAT levels were normal in all cortical and subcortical brain areas examined. However, the two of 12 methamphetamine users, who had the highest brain/blood drug levels at autopsy, had a severe (up to 94%) depletion of ChAT activity in cerebral cortex, striatum, and thalamus. Based on the subjects examined in the present study, our neurochemical data suggest that brain cholinergic neurone damage is unlikely to be a typical feature of chronic use of cocaine, methamphetamine, or heroin, but that exposure to very high doses of methamphetamine could impair, at least acutely, cognitive function requir- ing a normal nucleus basalis cholinergic neuronal system. -
Ethanolamines Storage Guide Dow Manufactures Ethanolamines for A
DSA9782.qxd 1/29/03 2:34 PM Page 1 DSA9782.qxd 1/29/03 2:34 PM Page 2 DSA9782.qxd 1/29/03 2:34 PM Page 3 Contents PAGE Introduction 2 Product Characteristics 3 Occupational Health 3 Reactivity 3 Oxidation 4 Liquid Thermal Stability 4 Materials of Construction 5 Pure Ethanolamines 5 Aqueous Ethanolamines 6 Gaskets and Elastomers 7 Transfer Hose 8 Preparation for Service 9 Thermal Insulation Materials 10 Typical Storage System 11 Tank and Line Heating 11 Drum Thawing 11 Special Considerations 14 Vent Freezing 14 Color Buildup in Traced Pipelines 14 Thermal Relief for Traced Lines 14 Product Unloading 15 Unloading System 15 Shipping Vessel Descriptions 16 General Unloading Procedure 17 Product Handling 18 Personal Protective Equipment 18 Firefighting 18 Equipment Cleanup 18 Product Shipment 19 Environmental Considerations 19 Product Safety 20 1 DSA9782.qxd 1/29/03 2:34 PM Page 4 Ethanolamines Storage and Handling The Dow Chemical Company manufactures high-quality ethanolamines for a wide variety of end uses. Proper storage and handling will help maintain the high quality of these products as they are delivered to you. This will enhance your ability to use these products safely in your processes and maximize performance in your finished products. Ethanolamines have unique reactivity and solvent properties which make them useful as intermediates for a wide variety of applications. As a group, they are viscous, water-soluble liquids. In their pure, as-delivered state, these materials are chemically stable and are not corrosive to the proper containers. Ethanolamines can freeze at ambient temperatures. -
Choline an Essential Nutrient for Public Health
Continuing Education Elevating Awareness and Intake of Choline An Essential Nutrient for Public Health Marie Caudill, PhD, RD Steven Zeisel, MD, PhD Kerry-Ann da Costa, PhD Betsy Hornick, MS, RD Emerging science has revealed that choline plays important Choline is the newest roles in health throughout the life cycle with potentially essential nutrient. serious health consequences associated with inadequate choline intakes. Recent national consumption data indicate that the vast majority of Americans are falling short of recommended intakes. Increased education, including In 2009, the Choline Science Summit was held in Washington, District of Columbia, bringing together recommendations to consume more choline-rich foods, prominent scientists and researchers along with nutrition is needed to improve choline intakes for optimal health. leaders from organizations including the American Nutr Today. 2011;46(5):235–241 College of Obstetricians and Gynecologists, American Dietetic Association, American Society for Nutrition, International Life Sciences Institute, National WIC Association, and US Department of Agriculture (USDA). holine was discovered as a vitamin in 1862, The symposium addressed the latest science on choline but it was more than a century later that it and gathered insights for helping raise awareness Cwas recognized as an essential nutrient. It was and intake of this essential nutrient, especially among officially recognized as an essential nutrient by the vulnerable populations. It included discussions of Institute of Medicine (IOM) in 1998, and an adequate choline’s critical role in human health and development intake (AI) was established based on estimated throughout the life cycle, the role of genetics in dietary intakes and studies reporting liver damage determining choline requirements, and a closer look with lower choline intakes.1 Choline is essential for at the gaps in choline requirements compared with liver and brain function, lipid metabolism, and for actual intakes. -
The Relationship Between Choline Bioavailability from Diet, Intestinal Microbiota Composition, and Its Modulation of Human Diseases
nutrients Review The Relationship between Choline Bioavailability from Diet, Intestinal Microbiota Composition, and Its Modulation of Human Diseases Natalia Arias 1,2,*, Silvia Arboleya 3 , Joseph Allison 2, Aleksandra Kaliszewska 2, Sara G. Higarza 1,4 , Miguel Gueimonde 3 and Jorge L. Arias 1,4 1 Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33003 Oviedo, Asturias, Spain; [email protected] (S.G.H.); [email protected] (J.L.A.) 2 Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; [email protected] (J.A.); [email protected] (A.K.) 3 Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33003 Oviedo, Asturias, Spain; [email protected] (S.A.); [email protected] (M.G.) 4 Laboratory of Neuroscience, Department of Psychology, University of Oviedo, Plaza Feijóo, s/n, 33003 Oviedo, Asturias, Spain * Correspondence: [email protected] Received: 14 July 2020; Accepted: 30 July 2020; Published: 5 August 2020 Abstract: Choline is a water-soluble nutrient essential for human life. Gut microbial metabolism of choline results in the production of trimethylamine (TMA), which, upon absorption by the host is converted into trimethylamine-N-oxide (TMAO) in the liver. A high accumulation of both components is related to cardiovascular disease, inflammatory bowel disease, non-alcoholic fatty liver disease, and chronic kidney disease. However, the relationship between the microbiota production of these components and its impact on these diseases still remains unknown. In this review, we will address which microbes contribute to TMA production in the human gut, the extent to which host factors (e.g., the genotype) and diet affect TMA production, and the colonization of these microbes and the reversal of dysbiosis as a therapy for these diseases. -
Locating and Estimating Sources of Ethylene Oxide
United States Office of Air Quality EPA-450/4-84-007L Environmental Protection Planning And Standards Agency Research Triangle Park, NC 27711 September 1986 AIR EPA LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF ETHYLENE OXIDE L &E EPA- 450/4-84-007L September 1986 LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF ETHYLENE OXIDE U.S. Environmental Protection Agency Office of Air and Radiation Office of Air Quality Planning and Standards Research Triangle Park, North Carolina 27711 This report has been reviewed by the Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, and approved for publication as received from the contractor. Approval does not signify that the contents necessarily reflect the views and policies of the Agency, neither does mention of trade names or commercial products constitute endorsement or recommendation for use. EPA - 450/4-84-007L TABLE OF CONTENTS Section Page 1 Purpose of Document .......................................... 1 2 Overview of Document Contents ................................ 3 3 Background ................................................... 5 Nature of Pollutant .................................... 5 Overview of Production and Use ......................... 7 References for Section 3 .............................. 14 4 Emissions from Ethylene Oxide Production .................... 16 Ethylene Oxide Production ................................... 16 References for Section 4 .................................... 33 5 Emissions from Industries Which Use Ethylene -
Experimental Solubility of Carbon Dioxide in Monoethanolamine, Or
Experimental solubility of carbon dioxide in monoethanolamine, or diethanolamine or N-methyldiethanolamine (30 wt%) dissolved in deep eutectic solvent (choline chloride and ethylene glycol solution) Mohammed-Ridha Mahi, Ilham Mokbel, Latifa Negadi, Fatiha Dergal, Jacques Jose To cite this version: Mohammed-Ridha Mahi, Ilham Mokbel, Latifa Negadi, Fatiha Dergal, Jacques Jose. Experimen- tal solubility of carbon dioxide in monoethanolamine, or diethanolamine or N-methyldiethanolamine (30 wt%) dissolved in deep eutectic solvent (choline chloride and ethylene glycol solution). Journal of Molecular Liquids, Elsevier, 2019, 289, pp.111062. 10.1016/j.molliq.2019.111062. hal-02325445 HAL Id: hal-02325445 https://hal.archives-ouvertes.fr/hal-02325445 Submitted on 27 Apr 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Version of Record: https://www.sciencedirect.com/science/article/pii/S0167732219309687 Manuscript_b1cac4d1705988e9c9c303e3ba8c62e9 1 Experimental solubility of carbon dioxide in monoethanolamine, or 2 diethanolamine or N-methyldiethanolamine -
Suthat Liangpunsakul, M.D. 18 U.S.C
Waiver to Allow Participation in a Food and Drug Administration Advisory Committee DATE: May 12, 2021 TO: Russell Fortney Director, Advisory Committee Oversight and Management Staff Office of the Chief Scientist FROM: Byron Marshall Director, Division of Advisory Committee and Consultant Management Office of Executive Programs Center for Drug Evaluation and Research Name of Advisory Committee Temporary Voting Member: Suthat Liangpunsakul, MD, MPH Committee: Pharmacy Compounding Advisory Committee (PCAC) Meeting date: June 9, 2021 Description of the Particular Matter to Which the Waiver Applies: Suthat Liangpunsakul, MD, MPH, is a temporary voting member of the Pharmacy Compounding Advisory Committee (PCAC). The committee’s function is to provide advice on scientific, technical, and medical issues concerning drug compounding under sections 503A and 503B of the Federal Food, Drug, and Cosmetic Act, and, as required, any other product for which the Food and Drug Administration has regulatory responsibility, and make appropriate recommendations to the Commissioner of Food and Drugs. On June 9th, the committee will discuss bulk drug substances nominated for inclusion on the 503A Bulks List. The nominators of these substances or another interested party will be invited to make a short presentation supporting the nomination. One of the bulk substances to be discussed is choline chloride (uses are for liver diseases (including non-alcoholic fatty liver disease), hepatic steatosis, atherosclerosis, fetal alcohol spectrum disorder, and supplementation in long term total parenteral nutrition). The topic to be discussed during the meeting is a particular matter involving specific parties. Type, Nature, and Magnitude of the Financial Interest: Dr. Liangpunsakul reported that he and his spouse have a financial interest in (b) (6) , a medical technology and device sector mutual fund. -
Diethanolamine
DIETHANOLAMINE 1. Exposure Data 1.1 Chemical and physical data 1.1.1 Nomenclature Chem. Abstr. Serv. Reg. No.: 111-42-2 Deleted CAS Reg. No.: 8033-73-6 Chem. Abstr. Name: 2,2′-Iminobis[ethanol] IUPAC Systematic Name: 2,2′-Iminodiethanol Synonyms: Bis(hydroxyethyl)amine; bis(2-hydroxyethyl)amine; N,N-bis(2- hydroxyethyl)amine; DEA; N,N-diethanolamine; 2,2′-dihydroxydiethylamine; di- (β-hydroxyethyl)amine; di(2-hydroxyethyl)amine; diolamine; 2-(2-hydroxyethyl- amino)ethanol; iminodiethanol; N,N′-iminodiethanol; 2,2′-iminodi-1-ethanol 1.1.2 Structural and molecular formulae and relative molecular mass CH2 CH2 OH H N CH2 CH2 OH C4H11NO2 Relative molecular mass: 105.14 1.1.3 Chemical and physical properties of the pure substance (a) Description: Deliquescent prisms; colourless, viscous liquid with a mild ammonia odour (Budavari, 1998; Dow Chemical Company, 1999) (b) Boiling-point: 268.8 °C (Lide & Milne, 1996) (c) Melting-point: 28 °C (Lide & Milne, 1996) (d) Density: 1.0966 g/cm3 at 20 °C (Lide & Milne, 1996) (e) Spectroscopy data: Infrared (proton [5830]; grating [33038]), nuclear magnetic resonance (proton [6575]; C-13 [2936]) and mass spectral data have been reported (Sadtler Research Laboratories, 1980; Lide & Milne, 1996) (f) Solubility: Very soluble in water (954 g/L) and ethanol; slightly soluble in benzene and diethyl ether (Lide & Milne, 1996; Verschueren, 1996) –349– 350 IARC MONOGRAPHS VOLUME 77 (g) Volatility: Vapour pressure, < 0.01 mm Hg [1.33 Pa] at 20 °C; relative vapour density (air = 1), 3.6; flash-point, 149 °C (Verschueren, 1996) (h) Stability: Incompatible with some metals, halogenated organics, nitrites, strong acids and strong oxidizers (Dow Chemical Company, 1999) (i) Octanol/water partition coefficient (P): log P, –2.18 (Verschueren, 1996) (j) Conversion factor1: mg/m3 = 4.30 × ppm 1.1.4 Technical products and impurities Diethanolamine is commercially available with the following specifications: purity, 99.3% min.; monoethanolamine, 0.45% max.; triethanolamine (see monograph in this volume), 0.25% max.; and water content, 0.15% max. -
Degradation of Amine-Based Solvents in CO2 Capture Process by Chemical Absorption
CORE Metadata, citation and similar papers at core.ac.uk Provided by Heriot Watt Pure Degradation of amine-based solvents in CO2 capture process by chemical absorption F. Vega1, 2, A. Sanna2, B. Navarrete1, M.M. Maroto-Valer2, V. Cortés1 1Chemical and Environmental Engineering Department, School of Engineering, University of Seville, C/ Camino de los Descubrimientos s/n 41092 Sevilla, Spain, Phone: 954481397, [email protected] 2Centre for Innovation in Carbon Capture and Storage (CICCS), School of Engineering and Physical Sciences, Heriot-Watt University, EH14 4AS, Edinburgh, UK ABSTRACT Carbon dioxide capture and storage (CCS) technologies have been proposed as promising alternative to reduce CO2 emissions from fossil-fuel power plants with post- combustion capture. Absorption by aqueous amine-solutions is considered the most mature and industrially developed technology for post-combustion capture. One of the most significant issues hindering a large deployment of this technology is potential amine degradation. Amines degrade in presence of O2, CO2, NOx, SO2 and heat resulting in solvent loss, equipment corrosion and generation of volatile degradation compounds. Two types of degradation have been identified in the literature, namely oxidative and thermal degradation. A review of the amine-based solvents, its main degradation products, the apparatus and analytical methods most widely used, as well as the mechanism proposed and kinetic studies are presented and discussed here. Moreover, amines emissions from CO2 capture units can react in the atmosphere via photo-oxidation and also via NOX reactions to give nitrosamines and nitramines, which are potentially harmful to the human health and the environment. A discussion of the recent works on atmospheric degradation of amine solvents is also included in this review.