Why is enol formation in dimedone more favorable than in. Chem 12c lab manual summer 2017 page 24 experiment 7 synthesis of an azo dye reading. Chloralkali customers should refer to the nafion users guide. Expt 804 the pechmann reaction chem undergrad courses. Nafion is a brand name for a sulfonated tetrafluoroethylene based fluoropolymer copolymer. Strong acid cation exchange polymer, hydrogen ion form skin irritation rabbit oecd test guideline 404 4 hour nonirritating component. Handling and storage of dupont nafion perfluorinated. Contact nafion customer service for availability of larger quantities.
To search for a specific grade enter it in the search box below. For the purpose of industrial effluent treatment our mza cationic membranes give a similar compartment as the commercial cationic membranes 100 100, a a w so. Nafion perfluorinated membrane nafion 117, thickness 0. Material safety data sheet for nafion pfsa membranes n115, n117, and n1110 nafion safety in handling and use technical bulletin, t01 guide to safe handling of fluoropolymer resins, fourth edition, november 2005, published by the. Material safety data sheet page 2 printed on 02102011 with chills and fever. Lithiated nafion as polymer electrolyte for solidstate. Nafion 417 perfluorinated membrane, reinforced with ptfe and. Dowex monosphere 650c h ion exchange resin page 5 of 7 revision date 07172012 acute inhalation toxicity lc50 rat 4 hour 11 mgl component. Threedimensional mesoporous sba16 silica materials were functionalized with perfluorosulfonic acidic resin nafion using an impregnation method. Study of ionselective membranes from electrodialysis.
Proton and water transport in nanoseparated polymer membranes pdf. Use our technical data sheet finder to explore our different compound product offerings. Pdf protonexchange membrane fuel cells pemfcs are considered to be a promising. Vacuum filter the mixture on a hirsh funnel to remove the brown acid strips or resin and wash with a little warm methanol. Uses advised against food, drug, pesticide or biocidal product use. This product is not regulated under the hazard communication standard, 29cfr1910. The density of nafion membranes wetted in water and acetonitrile and the solubility of nafion in a 50. The contents of li nafion resin and conductive carbon ab in the cathode are 40% and 10%, respectively. Prelab questions 1 the material safety data sheets msds for some of the chemicals involved in this. Nafion is a brand name for a sulfonated tetrafluoroethylene based fluoropolymercopolymer. The intrinsic polarity of the sba16 surface was tuned by grafting ethoxytrimethylsilane on its surface.
It is designed to meet the demand for hightemperature fluoropolymers in sustainable energy production, such as geothermal energy, and the oil and gas, military, aerospace. Refer to the nafion safety and handling in use bulletin and the material safety data sheet. Symptoms may not occur for several hours after exposure and go. Additional information may be obtained by calling the evercoat msds hotline at 18007297600. Their application as versatile heterogeneous catalysts in organic transformations has been well established. Their synthesis is relatively straightforward, and uses classical aromatic substitution chemistry. Such nanocomposite membrane is obtained crackfree and with thickness close to 100. Sigmaaldrich material safety data sheet date printed. Nafion as a catalyst in organic synthesis the nafion catalyst, a perfluroalkanesulfonic acid resin was developed by dupont chemists in early 1960 during work with general electric on a fuel cell. Handling and storage of chemours nafion perfluorinated membranes before you start follow standard safety practices. Pss as a transparent holetransporting layer for highperformance crystallinesiorganic heterojunction solar cells with improved light soaking stability.
The purpose of this lab is to perform a fischer esterification using acidic resin as an acid catalyst and i hypothesize we will be able to make an ester from an alcohol and acetic acid. Du pont material safety data sheet page 2 printed on 03142010 inhalation of fumes from overheating or b urning nafion, or from smoking tobacco or cigarettes contaminate d with polymer, may cause polymer fume fever, a flulike illness wi th chills and fever. Alkylation of isobutane1butene on methylmodified nafion. Nafion 417 perfluorinated membrane, reinforced with ptfe. When discharging and charging at 1 c, the capacity retention of 89% could be still maintained after 100 cycles. Guide to safe handling of fluoropolymer resins, fourth edition, november 2005, published by the fluoropolymers division of the society of the plastics industry, inc. Safety data sheet revision date 26feb2020 revision number 2 1. Nafion s unique ionic properties are a result of incorporating perfluorovinyl ether groups terminated with. Carey 10th ed pp 893898 diazotization, p561563 uvvis spectroscopy. Material safety data sheet pfa fluoropolymer resin antistatic c980 version 2. Commercially available membranes, solution recast membranes, and recast membranes thermally processed for varying lengths of time were examined. Inhalation of fumes from overheating or burning nafion, or from. Novel device applications nafion resins are perfluorinated ionexchange materials composed of carbonfluorine backbone chains and perfluoro side chains containing sulfonic acid groups. The acidic hydrogen ion form and derivatives are solid, superacid catalysts useful in a wide variety of synthetic applications.
For more than 50 years, nafion membranes and dispersions have provided critical applications with unparalleled performance and durability. Allow the toluene and methanol to evaporate from the filter flask until the next lab period. Characterized by n2physisorption, xray diffraction xrd, and transmission electron micrographs tem, all the materials synthesized exhibited. Nafion 417 perfluorinated membrane, reinforced with ptfe and dacron, 0. If at any time you are unable to find a grade you are looking for, please contact us for assistance. The fep resin in fepd 121 is a melt flowable thermoplastic, providing superior properties typical of fluoropolymer resins. If product is to be sanded, the osha peltlv of 10 mgm3 for nuisance dust should be observed. Nafion 417, membrane, reinforced with teflon and dacron, 0. Delivering industryleading performance and durability at any scale. Data sheet of the cleaning chemicals be procured from the. The solutions are available in solid concentrations of 5% or 15% weight.
Unknown lab part 1 esterification via acidic resin purpose. Nafion can be produced as both a powder resin and a copolymer. Strong acid cation exchange polymer, hydrogen ion form eye irritation rabbit oecd test guideline 405 24 hour. Nafion perfluorinated resin solution 25ml, 100ml size. Identification of the substancemixture and of the companyundertaking 1. Nafion is a brand name for a sulfonated tetrafluoroethylene based fluoropolymercopolymer discovered in the late 1960s by walther grot of dupont. Sigmaaldrich offers a number of nafion perfluorinated resin solution products. Perfluorinated resin solution containing nafion 1100w 5 wt. Nafionptfe composite membranes for direct methanol fuel. This material is classified as an article and not subject to tsca. Introduction azo dyes have long been used in the fabric industry to color clothing and other materials. Symptoms may not occur for several hours after exposure and go away in 2448 hours even in absence of treatment. Put the used nafion 417 pieces into the recycling vial that is attached to the nafion supply bottle. Nafion c23h20n2o2s cid 52054 structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities.
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