DOCSLIB.ORG

Possible Hazards for CHEM 201

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Possible Hazards for CHEM 201 Possible Hazards for CHEM 201 This list of substances represents the possible hazards currently identified for this course; however, substitutions or additions are possible. Do not assume a substance is safe if it is not listed. You will be notified of changes as soon as they are available. If you are aware of any known allergies or sensitivities to chemicals, please let your professor know prior to the first lab class. Methylene chloride Cyclohexene Caffeinated cola Isobutyl Alcohol Tea Amyl Alcohol Coffee Cyclohexanone Caffeine Tablet Toluene Sodium sulfate N-Butyl Alcohol Ethyl acetate Denatured Ethanol Acetanilide Hexane Charcoal Salicylic acid Naphthalene Methanol Urea Catechol Citric Acid Camphor Naphthalene Para dichlorobenzene Flourene Updated: August 26, 2019 ss Complete List of Chemicals These chemicals are stored in an adjacent area. Any of these chemicals could be used for another course in the same lab room but at a different time. Exposure is possible but not probable. Acetanilide Benzoic Acid Acetic Acid, Glacial Benzophenone Acetic Acid, 0.01M, 0.1M, 1M Bleach Acetic Anhydride Bogen Universal Indicator Acetone Boiling Chips, pumice Acrylic Acid Boric Acid Adhesive Side Powder, Dark Boric Acid, 0.1M Albumin, Egg Brass Alka-Seltzer Bromocresol Green Indicator All-Purpose Cleaner Bromoethane (Ethyl Bromide) Aluminum (Foil) Bromothymol Blue Aluminum (Wire) Buffer solutions, pH4,pH7,pH10 Aluminum Nitrate – 9-hydrate Butyl Alcohol-n Aminobenzoic Acid, 3- Butyl Alcohol-tert Ammonia (household) Caffeine Ammonia Tablets #1, #2 Caffeine Ammonium Acetate Calcium Granules Ammonium Acetate, 0.1M Calcium Turnings Ammonium Bicarbonate Calcium Acetate Ammonium Chloride Calcium Carbonate Ammonium Dichromate Calcium Chloride – Anhydrous Ammonium Hydroxide Calcium Chloride – 2-hydrate Ammonium Nitrate Calcium Hydroxide (Lime) Ammonium Nitrate, 0.1M Calcium Nitrate – 4-hydrate Ammonium Oxalate Monohydrate Calcium Oxide Ammonium Persulfate Calcium Sulfate – 2-hydrate Amyl Alcohol Camphor-dl Argon Spectrum Tubes Carbon (Charcoal) Arsenic Trioxide Casein Ascorbic Acid (Vitamin C) Catechol (Pyrocatechol) Aspirin (Acetylsalicylic Acid) Chlorobenzene Barium Chloride-anhydrous Chlorobenzoic Acid-p Barium Chloride-2-hydrate Chloroform Barium Hydroxide – Anhydrous Chromium Test Tablet Barium Hydroxide – 8-hydrate Citric Acid – Anhydrous Barium Nitrate Club Soda (Carbonic Acid) Basic Yellow Cobalt Chloride – 6-hydrate Benzil Cobalt Nitrate – 6-hydrate Congo Red Hydrogen Peroxide, 30% Copper solid Indanone, 1- Copper(II) Chloride–2-hydrate Iodine solid Copper(II) Nitrate–2½-hydrate Iodine Solution Copper(II) Sulfate–Anhydrous Iodine Spectrum Tubes Copper(II) Sulfate–5-hydrate Iodoacetophenone, 4’ Cyanoacrylate Iodophenol, 4 Cyclohexane Iron (Filings) Cyclohexanol Iron (III) Chloride – 6-hydrate Cyclohexanone Iron (III) Nitrate – 9-hydrate Cyclohexene Iron (II) Sulfate – 7-hydrate Deet (N,N-diethyl-m-toluamide) Iron (II) Sulfide – Anhydrous Dessicant Isoamyl Alcohol Dichlorobenzene-p (PDB) Iso-butanol Diethyl Ether, anhydrous (Ether) Isopropyl Alcohol Diethylamine Krypton Spectrum Tubes Dimethoxybenzaldehyde, 3,4- Latent Print Powder, Magnetic Dimethylformamide, N,N- Latent Print Powder, Silk Black Dimethylglyoxime Latex liquid Dinitrobenzoic Acid-3,5 Lead Diphenylaminesulfonic Acid Lead Chloride Dodecyl Alcohol Lead Nitrate EDTA Lithium Chloride Ethyl Acetate Lycopodium Ethyl Alcohol Lye (Sodium Hydroxide) Ethyl Alcohol, 95% Magnesium Metal Ribbon Ethyl Bromide (Bromoethane) Magnesium Chloride – 6-hydrate Ethylenediamine Manganese Sulfate monohydrate Ferric Tartrate Magnesium Sulfate – anhydrous Fluorene Malonic Acid Formaldehyde Manganese Chloride–4-hydrate Formic Acid Manganese Dioxide Fructose Manganese Sulfate monohydrate Furfural Mercury Spectrum Tubes Glass Beads Methyl Alcohol (Methanol) Glycerin Methyl Ethyl Ketone Gold Methyl Formate Helium Spectrum Tubes Methyl Orange Sodium Salt Hexamethylenediamine Methyl Orange Indicator Hexanes Methylene Chloride Hydrochloric Acid Molybdic Acid Hydrogen Spectrum Tubes Naphthalene Hydrogen Peroxide, 3% Neon Spectrum Tubes Nickel (II) Chloride – 6-hydrate Sodium Acetate – 3-hydrate Nickel Nitrate – 6-hydrate Sodium Bicarbonate Ninhydrin – monohydrate Sodium Bisulfate Ninhydrin Spray Sodium Bisulfite Nitric Acid Sodium Borohydride Nitrogen Spectrum Tubes Sodium Bromide Oleic Acid Sodium Carbonate–Anhydrous Oxalic Acid Octyl Alcohol Oxygen Spectrum Tubes Sodium Carbonate–Monohydrate Palladium (II) Chloride Sodium Chloride Phenol Sodium Dichromate – Dihydrate Phenolphthalein Sodium Hydroxide Phenylboronic Acid Sodium Iodide Phosphoric Acid Sodium Nitrate Phthalic Acid Sodium Nitrite Phthalic anhydride Sodium Phosphate Monohydrate Polyvinyl Alcohol Sodium Phosphate 7-hydrate Potassium Acid Phthalate Sodium Phosphate 12-hydrate Potassium Bromide Sodium Sulfate Anhydrous Potassium Carbonate – anhydrous Sodium Sulfate 10-hydrate Potassium Chlorate Sodium Sulfide 9-hydrate Potassium Chloride Sodium Sulfite Anhydrous Potassium Chromate Sodium Tetraborate (Borax) Potassium Citrate – Monohydrate Sodium Thiosulfate Anhydrous Potassium Dichromate Starch, Potato Potassium Ferrocyanide–3hydrate Steel Shots Potassium Hydroxide Strontium Chloride – 6-hydrate Potassium Iodate Strontium Nitrate Potassium Iodide Sucrose Potassium Nitrate Sulfur, Flowers of (sublimed) Potassium Oxalate–Monohydrate Sulfuric Acid Potassium Permanganate Tannic Acid Potassium Phosphate–Monobasic Thiamine Hydrochloride Potassium Thiocyanate Thioacetamide Propyl Alcohol-n Thyionyl Chloride Pyrocatechol (Catechol) Tin solid Salicylamide Tin (II) Chloride – 2-hydrate Salicylic Acid Toluene Sebacoyl Chloride Toluic Acid-m Silver Toluic Acid-p Silver Nitrate Trichloroethylene Small Particle Reagent, Dark Urea Sodium Acetate – Anhydrous Vanillin Vegetable Oil Xenon Spectrum Tubes Xylene Zinc solid Zinc Chloride Zinc Nitrate – 6-hydrate .
Load more

Recommended publications
  • Sodium Sulfate
    FT-08762A Sodium Sulfate Product Information Chemical name : Sodium Sulfate, ACS grade Syn.: Na2SO4 , sodium salt of sulfuric acid, Disodium sulfate; Bisodium sulfate; Dibasic sodium sulfate; Disodium monosulfate; (All.): disodium sulphate; Natriumsulfat; sodium sulphate CAS: 7757-82-6 EC number: 231-820-9 Cat. Number : 08762A, 500g 08762B, 1Kg 08762C, 2.5Kg 08762-B, Bulk Structure : Na2SO4 (anh.) Molecular Weight : 142.04 Properties: Form: white solid crystalline powder (hygroscopic) Density: 2.664 g/cm3 Melting point: 884°C Boiling point: 1429°C Refractive index (nD)/ 1.468 pKa: 10.329 and 6.351(carbonic acid) Solubility: readily soluble in water >4% w/v Storage: Room temperature (Z) Safety: Irritant. Non-flammable. Risk Statements: 36/37/38 Safety Statements: 36/37/39 Applications: Suitable for many biochemistry and biotechnology applications. P.1 FT-08762A Specifications Test Specifications Purity >99.0% Calcium (%) 0.01 Chloride (%) 0.001 Heavy Metals (as Pb) 0.0005 Iron (%) 0.001 Magnesium (%) 0.005% Nitrogen compounds (%) 0.0005% Phosphates (%) 0.001% Insolubles 0.001% Loss on Ignition (%) 0.5 pH (5%, water, 25°C) 0.01 + Technical information ●Chemistry Sodium sulfate is a neutral salt, which forms aqueous solutions with pH of 7. The Na+ ion weakly polarizes its water lig- ands provided there are metal ions in solution. Sodium sulfate reacts with sulfuric acid to give the acid salt sodium bisulfate, leading ot a temperatude-dependant equi- librium: Na2SO4 + H2SO4 ⇌ 2 NaHSO4 2− Sulfate ions (SO4 ) in solution can be indicated by the easy formation of insoluble sulfates when these solutions are treated with Ba2+ or Pb2+ salts: Na2SO4 + BaCl2 → 2 NaCl + BaSO4 Double salts with some other alkali metal sulfates are known, including Na2SO4·3K2SO4.
    [Show full text]
  • Allyson M. Buytendyk
    DISCOVERING THE ELECTRONIC PROPERTIES OF METAL HYDRIDES, METAL OXIDES AND ORGANIC MOLECULES USING ANION PHOTOELECTRON SPECTROSCOPY by Allyson M. Buytendyk A dissertation submitted to Johns Hopkins University in conformity with the requirements for the degree of Doctor of Philosophy Baltimore, Maryland September, 2015 © 2015 Allyson M. Buytendyk All Rights Reserved ABSTRACT Negatively charged molecular ions were studied in the gas phase using anion photoelectron spectroscopy. By coupling theory with the experimentally measured electronic structure, the geometries of the neutral and anion complexes could be predicted. The experiments were conducted using a one-of-a-kind time- of-flight mass spectrometer coupled with a pulsed negative ion photoelectron spectrometer. The molecules studied include metal oxides, metal hydrides, aromatic heterocylic organic compounds, and proton-coupled organic acids. Metal oxides serve as catalysts in reactions from many scientific fields and understanding the catalysis process at the molecular level could help improve reaction efficiencies - - (Chapter 1). The experimental investigation of the super-alkali anions, Li3O and Na3O , revealed both photodetachment and photoionization occur due to the low ionization potential of both neutral molecules. Additionally, HfO- and ZrO- were studied, and although both Hf and Zr have very similar atomic properties, their oxides differ greatly where ZrO- has a much lower electron affinity than HfO-. In the pursuit of using hydrogen as an environmentally friendly fuel alternative, a practical method for storing hydrogen is necessary and metal hydrides are thought to be the answer (Chapter 2). Studies yielding structural and electronic information about the hydrogen - - bonding/interacting in the complex, such as in MgH and AlH4 , are vital to constructing a practical hydrogen storage device.
    [Show full text]
  • Root Touch-Up Ingredients/Ingrédients
    ROOT TOUCH-UP INGREDIENTS/INGRÉDIENTS: In every box you’ll find: Color Blend Formula (#1) and the Color Blend Activator (#2). Our Color Blend Formula is uniquely formulated to achieve your desired shade. Find yours below. COLORBLEND ACTIVATOR (2) COLORBLEND FORMULA (1) WATER, HYDROGEN PEROXIDE, CETEARYL ALCOHOL, 5A/MEDIUM ASH BROWN NOL, CARAMEL, p-PHENYLENEDIAMINE, SODIUM 7/DARK BLONDE CETEARETH-20, STEARETH-21, LAURETH-23, WATER, C12-15 PARETH-3, AMMONIUM HYDROX- SULFITE, 1-NAPHTHOL, IRON OXIDES, N,N-BIS(2-HY- WATER, C12-15 PARETH-3, AMMONIUM HYDROX- POLYQUATERNIUM-37, PROPYLENE GLYCOL IDE, OLETH-10, DILINOLEIC ACID, COCAMIDE MEA, DROXYETHYL)-p-PHENYLENEDIAMINE SULFATE, MICA, IDE, OLETH-10, DILINOLEIC ACID, COCAMIDE MEA, DICAPRYLATE/DICAPRATE, STYRENE/VP COPOLYMER, LINOLEAMIDOPROPYL DIMETHYLAMINE DIMER p-AMINOPHENOL, SODIUM METASILICATE, EDTA, LINOLEAMIDOPROPYL DIMETHYLAMINE DIMER PPG-1 TRIDECETH-6, ETIDRONIC ACID. DILINOLEATE, STEARETH-21, BEHENTRIMONIUM m-AMINOPHENOL, SARGASSUM FILIPENDULA EX- DILINOLEATE, STEARETH-21, BEHENTRIMONIUM CHLORIDE, POLYQUATERNIUM-22, SODIUM SULFATE, TRACT, HYPNEA MUSCIFORMIS EXTRACT, GELLIDIELA CHLORIDE, POLYQUATERNIUM-22, FRAGRANCE, FRAGRANCE, RESORCINOL, ERYTHORBIC ACID, ACEROSA EXTRACT, TITANIUM DIOXIDE. SODIUM SULFATE, ERYTHORBIC ACID, p-AMINOPHE- p-PHENYLENEDIAMINE, CARAMEL, p-AMINOPHENOL, NOL, RESORCINOL, p-PHENYLENEDIAMINE, MICA, m-AMINOPHENOL, IRON OXIDES, MICA, SODIUM SODIUM SULFITE, TITANIUM DIOXIDE, m-AMINOPHE- SULFITE, N,N-BIS(2-HYDROXYETHYL)-p-PHENYLENE- 5G/MEDIUM GOLDEN BROWN NOL, SODIUM METASILICATE, EDTA, SARGASSUM FILI- DIAMINE SULFATE, 1-NAPHTHOL, SODIUM METASILI- WATER, C12-15 PARETH-3, AMMONIUM HYDROX- PENDULA EXTRACT, HYPNEA MUSCIFORMIS EXTRACT, CATE, EDTA, SARGASSUM FILIPENDULA EXTRACT, HY- IDE, OLETH-10, DILINOLEIC ACID, COCAMIDE MEA, 1-NAPHTHOL, IRON OXIDES, N,N-BIS(2-HYDROXYETH- PNEA MUSCIFORMIS EXTRACT, GELLIDIELA ACEROSA LINOLEAMIDOPROPYL DIMETHYLAMINE DIMER YL)-p-PHENYLENEDIAMINE SULFATE, GELLIDIELA EXTRACT, TITANIUM DIOXIDE.
    [Show full text]
  • SDS Contains All of the Information Required by the HPR
    SAFETY DATA SHEET Preparation Date: 7/7/2015 Revision Date: 7/6/2018 Revision Number: G2 1. IDENTIFICATION Product identifier Product code: C1115 Product Name: CALCIUM HYDROXIDE, POWDER, REAGENT, ACS Other means of identification Synonyms: Calcium hydrate Carboxide Calcium dihydroxidede calcium (French) CAS #: 1305-62-0 RTECS # EW2800000 CI#: Not available Recommended use of the chemical and restrictions on use Recommended use: Fireproofing coatings. water treatment. Buffering agent. In paper manufacture process. Chemical intermediate. In dental cement. In lubricants. In mortar, plaster, cement and other building and paving materials. In fungicides. In pesticides. In SBR rubber vulcanization. Uses advised against No information available Supplier: Spectrum Chemical Mfg. Corp 14422 South San Pedro St. Gardena, CA 90248 (310) 516-8000 Order Online At: https://www.spectrumchemical.com Emergency telephone number Chemtrec 1-800-424-9300 Contact Person: Martin LaBenz (West Coast) Contact Person: Ibad Tirmiz (East Coast) 2. HAZARDS IDENTIFICATION Classification This chemical is considered hazardous according to the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Considered a dangerous substance or mixture according to the Globally Harmonized System (GHS) Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 1 Specific target organ toxicity (single exposure) Category 3 Label elements Danger Product code: C1115 Product name: CALCIUM 1 / 13 HYDROXIDE, POWDER, REAGENT, ACS Hazard statements Causes skin irritation Causes serious eye damage May cause respiratory irritation Hazards not otherwise classified (HNOC) Not Applicable Other hazards Not available Precautionary Statements - Prevention Wash face, hands and any exposed skin thoroughly after handling Avoid breathing dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area Wear protective gloves Wear eye/face protection Precautionary Statements - Response IF IN EYES: Rinse cautiously with water for several minutes.
    [Show full text]
  • Reactivity and Functionalization of Naphthalene and Anthracene Complexes of {Tpw(NO)(Pme3)}
    Reactivity and Functionalization of Naphthalene and Anthracene Complexes of {TpW(NO)(PMe3)} Laura Jessica Strausberg Baltimore, Maryland B.A., Hollins University, 2008 A Dissertation presented to the Graduate Faculty of the University of Virginia in Candidacy for the Degree of Doctor of Philosophy Department of Chemistry University of Virginia July, 2013 ii Abstract Chapter 1 introduces the organic chemistry of aromatic hydrocarbons, with attention paid to regiochemical outcomes of organic reactions. The binding of naphthalene and anthracene to metal complexes is discussed, along with organic transformations they undergo as a result of their complexation. The previous work on osmium and rhenium complexes of naphthalene from the Harman group is explored. Finally, some spectroscopic techniques for exploring the chemistry of {TpW(NO)(PMe3)} complexes of naphthalene and anthracene are introduced. Chapter 2 discusses the highly distorted allyl complexes formed from {TpW(NO)(PMe3)} and the exploration of their origin. Attempts at stereoselectively deprotonating these cationic complexes is also discussed. 2 Chapter 3 describes our study of TpW(NO)(PMe3)(3,4-η -naphthalene)’s ability to undergo a Diels-Alder reaction with N-methylmaleimide. A solvent study suggested that this reaction proceeds by a concerted mechanism. To probe the mechanism further, we synthesized a series of methylated and methoxylated naphthalene complexes and measured their rates of reaction with N-methylmaleimide compared to the parent complex. We found that 1- substitution on the naphthalene increased the rate of cycloaddition, even if the substituent was in the unbound ring, while 2-substitution slowed the reaction rate when in the bound ring. This information is consistent with a concerted mechanism, as a 2-substituted product would be less able to isomerize to form the active isomer for the cycloaddition to occur.
    [Show full text]
  • Sodium Sulfate CAS N°: 7757-82-6
    OECD SIDS SODIUM SULFATE FOREWORD INTRODUCTION Sodium sulfate CAS N°: 7757-82-6 UNEP PUBLICATIONS 1 OECD SIDS SODIUM SULFATE SIDS Initial Assessment Report For SIAM 20 Paris, France, 19 – 22 April 2005 1. Chemical Name: Sodium sulfate 2. CAS Number: 7757-82-6 3. Sponsor Country: Slovak Republic Contact Point: Centre for Chemical Substances and Preparations, Bratislava Contact Person: Peter Rusnak, Ph.D. Director Co-sponsor Country: Czech Republic Contact Point: Ministry of Environment Contact Person: Karel Bláha, Ph.D. Director Department of Environmental Risks Prague 4. Shared Partnership with: Sodium Sulfate Producers Association (SSPA)∗ and TOSOH 5. Roles/Responsibilities of the Partners: • Name of industry sponsor Sodium Sulfate Producers Association (SSPA) /consortium • Process used Documents were drafted by the consortium, then peer reviewed by sponsor countries experts 6. Sponsorship History • How was the chemical or Nominated by ICCA in the framework of the ICCA HPV category brought into the program OECD HPV Chemicals Programme? 7. Review Process Prior to Two drafts were reviewed by the Slovakian/Czech authorities; third the SIAM: draft subject to review by OECD membership 8. Quality check process: Data was reviewed against the OECD criteria as described in the SIDS manual. These criteria were used to select data for extraction into the SIDS dossier. Original data was sought wherever possible. Originally reported work was deemed reliable if sufficient information was reported (according to the manual) to judge it robust. Reviews were only judged reliable if reported 2 UNEP PUBLICATIONS OECD SIDS SODIUM SULFATE by reputable organisations/authorities or if partners had been directly involved in their production 9.
    [Show full text]
  • Microstructural and Compressive Strength Analysis for Cement Mortar with Industrial Waste Materials
    Available online at www.CivileJournal.org Civil Engineering Journal Vol. 6, No. 5, May, 2020 Microstructural and Compressive Strength Analysis for Cement Mortar with Industrial Waste Materials Zahraa Fakhri Jawad a, Rusul Jaber Ghayyib a, Awham Jumah Salman a* a Al-Furat Al-Awsat Technical University, Najaf, Kufa, Iraq. Received 06 December 2019; Accepted 02 March 2020 Abstract Cement production uses large quantities of natural resources and contributes to the release of CO2. In order to treat the environmental effects related to cement manufacturing, there is a need to improve alternative binders to make concrete. Accordingly, extensive study is ongoing into the utilization of cement replacements, using many waste materials and industrial. This paper introduces the results of experimental investigations upon the mortar study with the partial cement replacement. Fly ash, silica fume and glass powder were used as a partial replacement, and cement was replaced by 0%, 1%, 1.5%, 3% and 5% of each replacement by the weight. Compressive strength test was conducted upon specimens at the age of 7 and 28 days. Microstructural characteristic of the modified mortar was done through the scanning electron microscope (SEM) vision, and X-ray diffraction (XRD) analysis was carried out for mixes with different replacements. The tests results were compared with the control mix. The results manifested that all replacements present the development of strength; this improvement was less in the early ages and raised at the higher ages in comparison with the control specimens. Microstructural analysis showed the formation of hydration compounds in mortar paste for each replacement. This study concluded that the strength significantly improved by adding 5% of silica fume compared with fly ash and glass powder.
    [Show full text]
  • ACUMER™ 9000 Mineral Slurry Dispersant
    Technical Data ACUMER™ 9000 Mineral Slurry Dispersant Description ACUMER™ 9000 is a sodium salt of an acrylic acid-based polymer. It is a highly effective dispersant for aqueous calcium hydroxide and magnesium hydroxide slurries. Features and • Controlling phase separation Benefits • Reducing caking and clogging of equipment • Aiding the remixing of slurries after settling Typical Properties Property Typical Value Appearance Clear, light amber solution Total solids, % 44 pH 7.5 Density (lb/gal, @ 25°C) 10.8 Brookfield viscosity, (mPa.s/cps @ 25°C) 500 These properties do not constitute specifications. Performance Many problems can be encountered in producing calcium hydroxide or magnesium hydroxide slurries, including: • Wettability • Phase separation • Caking • Pumping • Pipe clogging • Remixing after setting • Slurry viscosity Calcium Hydroxide Figure 1 shows the efficiency of ACUMER 9000 as a dispersant for 30% calcium hydroxide slurry. Figure 1. ACUMER 9000 Dosage vs. Viscosity (30% Lime Slurry) Page 1 of 4 ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow Form No. 812-00352-0216BBI ACUMER™ 9000 / Dow Oil, Gas & Mining The following table shows the positive effect of ACUMER™ 9000 dosage on lime slurry stability. Lower dosage (0.2%) gives higher slurry viscosity and lower syneresis (liquid phase separation). The desired slurry properties can be controlled by optimizing the dispersant dosage. Effect of ACUMER 9000 Dispersant on 30% Lime Slurry1 Stability After 8 Days at Room Temperature Initial Make-Down Dosage, % (solids basis) Syneresis Gel3 Flowed4 Viscosity2 0.2 2080 1.7 98.3 93.3 0.4 810 12.0 88.0 97.1 0.6 382 16.5 83.5 96.3 130% lime slurry was prepared by mixing 210 grams of slaked lime with 490 grams of deionized water (including additives) for five minutes in a Waring blender at high speed.
    [Show full text]
  • 2-‐Bromobutane
    Practice Questions 1. What is true about the reaction between (R)-2-bromobutane and potassium cyanide as shown below? Br KCN a) The product is a racemic mixture. b) The product is (S)-2-cyanobutane. c) The mechanism proceeds through a stable intermediate. d) The mechanism proceeds through a single transition state step. e) Answers a and c. f) Answers b and d. 2. The following reaction goes through an SN2 mechanism. - - CH3CH2CH2Br + OH à CH3CH2CH2OH + Br At constant temperature, what is the effect on the rate of the reaction by simultaneously doubling the concentration of propyl bromide and OH- ion? a) It would increase the rate by six. b) It would double the rate. c) It would triple the rate. d) It would increase the rate by four. e) It would have no effect on the rate. 3. Which is the minor substitution product in the following reaction? a) I b) II c) III d) Equal amounts of I and II e) None of these products 4. What is the major product of the following reaction? a) I b) II c) III d) IV e) Equal amount of I and III 5. Consider the reaction between 2-bromo-2,4-dimethylpentane and sodium iodide, NaI, in acetone. Br NaI I acetone At constant temperature, what is the effect on the reaction rate if one simultaneously double the concentration of 2-bromo-2,4-dimethylpentane and sodium iodide? a) It would double the reaction rate. b) It would triple the reaction rate. c) It would quadruple the reaction rate. d) It would increase the reaction rate by 5.
    [Show full text]
  • Sodium Iodide Spotlight 352 Compiled by Vinícius Rangel Campos Vinícius Rangel Campos Was Born in Niterói/RJ, Brazil in 1986
    1186 SPOTLIGHT SYNLETT Sodium Iodide Spotlight 352 Compiled by Vinícius Rangel Campos Vinícius Rangel Campos was born in Niterói/RJ, Brazil in 1986. He This feature focuses on a re- received his Chemistry degree from the Universidade Federal Fluminense (UFF), Niterói/RJ, Brazil in 2009. He is currently in the agent chosen by a postgradu- final stages of his MSc. studies under the supervision of Professors ate, highlighting the uses and Anna Claudia Cunha and Vitor Francisco Ferreira in Organic preparation of the reagent in Chemistry at the Universidade Federal Fluminense. His research in- current research terest is focused on the design and synthesis of new bioactive com- pounds, such as quinone and 1,2,3-triazole derivatives. Instituto de Química, Universidade Federal Fluminense, UFF, CEP: 24020-141 Niterói, Rio de Janeiro, Brazil E-mail: [email protected] Introduction NaI R–I NaX + R–X acetone Sodium iodide (NaI) occurs as colorless, odorless or as a X = Cl or Br white crystalline solid; it is slightly hygroscopic, and a commercially available reagent. It is soluble in water, Scheme 1 alcohols, acetone, and other organic solvents and stable This reaction has been expanded to include the conversion under normal temperature and pressure (mp: 651 °C, of alcohols into alkyl halides by first converting the alco- d = 3.67 g/cm3).1 On a laboratory scale, sodium iodide hol into a sulfonate ester (tosylates or mesylates are usu- may be prepared by neutralizing a solution of sodium hy- ally used), and then performing the substitution.6 Other droxide or sodium carbonate with hydriodic acid.2 Sodi- applications using sodium iodide as reagent in organic um iodide is a very useful and versatile reagent for the synthesis have been reported.
    [Show full text]
  • Revision of KS4 the Periodic Table for KS5 Chemistry - Worksheet
    Revision of KS4 The Periodic Table for KS5 Chemistry - Worksheet 1. On the copy of the periodic table (next page) label the following: a. metals and non metals b. groups (with numbers) c. periods (with numbers) d. transition elements 2. How are elements in the periodic table ordered? 3. Find two examples where the mass number does not increase. 4. How many electrons does Magnesium have in its highest energy level? 5. How many electrons does Oxygen have in its highest energy level? 6. What do elements in the same group have in common? 7. What happens to reactivity in group 1 as you go down the group? 8. What happens to reactivity in group 7 as you go down the group? 9. Name 1 similarity and 1 difference between group 1&2 metals and the transition elements. 10. Write a word and symbol equation to show how sodium reacts with water. 11. If identical pieces of lithium and potassium were dropped into a bowl of water at the same time describe how their reactions would differ. 12. Complete the table with ticks to show which reaction will happen. Fluorine Chlorine Bromine Iodine Sodium fluoride Sodium chloride Sodium bromide Sodium iodide Extension Question Research the appearance and state of group 7 elements, use this knowledge to predict observation for the reaction in question 12. Revision of KS4 The Periodic Table for KS5 Chemistry Image credit to LeVanHan https://commons.wikimedia.org/wiki/File:Periodic-table.jpg Revision of KS4 The Periodic Table for KS5 Chemistry Revision of KS4 The Periodic Table for KS5 Chemistry - Worksheet (Answers) 1.
    [Show full text]
  • Anaerobic Degradation of Methanethiol in a Process for Liquefied Petroleum Gas (LPG) Biodesulfurization
    Anaerobic degradation of methanethiol in a process for Liquefied Petroleum Gas (LPG) biodesulfurization Promotoren Prof. dr. ir. A.J.H. Janssen Hoogleraar in de Biologische Gas- en waterreiniging Prof. dr. ir. A.J.M. Stams Persoonlijk hoogleraar bij het laboratorium voor Microbiologie Copromotor Prof. dr. ir. P.N.L. Lens Hoogleraar in de Milieubiotechnologie UNESCO-IHE, Delft Samenstelling promotiecommissie Prof. dr. ir. R.H. Wijffels Wageningen Universiteit, Nederland Dr. ir. G. Muyzer TU Delft, Nederland Dr. H.J.M. op den Camp Radboud Universiteit, Nijmegen, Nederland Prof. dr. ir. H. van Langenhove Universiteit Gent, België Dit onderzoek is uitgevoerd binnen de onderzoeksschool SENSE (Socio-Economic and Natural Sciences of the Environment) Anaerobic degradation of methanethiol in a process for Liquefied Petroleum Gas (LPG) biodesulfurization R.C. van Leerdam Proefschrift ter verkrijging van de graad van doctor op gezag van de rector magnificus van Wageningen Universiteit Prof. dr. M.J. Kropff in het openbaar te verdedigen op maandag 19 november 2007 des namiddags te vier uur in de Aula Van Leerdam, R.C., 2007. Anaerobic degradation of methanethiol in a process for Liquefied Petroleum Gas (LPG) biodesulfurization. PhD-thesis Wageningen University, Wageningen, The Netherlands – with references – with summaries in English and Dutch ISBN: 978-90-8504-787-2 Abstract Due to increasingly stringent environmental legislation car fuels have to be desulfurized to levels below 10 ppm in order to minimize negative effects on the environment as sulfur-containing emissions contribute to acid deposition (‘acid rain’) and to reduce the amount of particulates formed during the burning of the fuel. Moreover, low sulfur specifications are also needed to lengthen the lifetime of car exhaust catalysts.
    [Show full text]