bisphenol a epoxy resin chemical formula

Bisphenol A (BPA) is a chemical compound primarily used in the manufacturing of various plastics. Another reason for concern, especially for parents, may be because some animal studies report effects in fetuses and newborns exposed to BPA. What is the formula of phenol formaldehyde resin? The chemical formula of Bisphenol A isC15H16O2. [7], BPA has been found to interact with a diverse range of hormone receptors, in both humans and animals. You may have heard claims that BPA exposure causes health effects in people. [8] Schug et al. The remaining 5% of BPA is used in a wide range of applications, many of which involve plastic. In the United States, FDA is the agency charged with this review for food contact applications. Dianin in 1891. Before sharing sensitive information, make sure you're on a federal government site. 2014 May;139(1):174-97. doi: 10.1093/toxsci/kfu022. tions of epoxy resins can be preset by the chemical structure of the resin and hardener, as well as by the . It was originally produced from coal tar and was named carbolic acid. Phenols can be compounds such as bisphenol A and novolak. 133 Cecil Street, The molecular weight and the epoxy equivalent weight are controlled by the ratio of epichlorohydrin EPC:BPA. .mw-parser-output .ib-chembox{border-collapse:collapse;text-align:left}.mw-parser-output .ib-chembox td,.mw-parser-output .ib-chembox th{border:1px solid #a2a9b1;width:40%}.mw-parser-output .ib-chembox td+td{width:60%}, Bisphenol A (BPA) is a chemical compound primarily used in the manufacturing of various plastics. [92][101][102] Its half life in water has been estimated at between 4.5 and 15 days, degradation in the air is faster than this, while soil samples degrade more slowly. . For example, FDA has participated with Health Canada in encouraging industry efforts to refine their manufacturing methods for the production of infant formula can linings to minimize migration of BPA into the formula. [1] This draft assessment was reviewed by a Subcommittee of FDAs Science Board, which released its report at the end of October 2008. [28] BPA was never used as a drug. BPA can both mimic the action of estrogen and antagonise estrogen, indicating that it is a selective estrogen receptor modulator (SERM) or partial agonist of the ER. This compound is synthesized by the condensation of acetone with phenol. Developmental treatment with bisphenol A or ethinyl estradiol causes few alterations on early preweaning measures. . BPA is an industrial chemical used to make a hard, clear plastic known as polycarbonate. Polycarbonate plastic made with BPA is shatter-resistant, lightweight, and has high optical clarity, similar to glass. [92] It is primarily a river pollutant,[93] but has also been observed in the marine environment,[94] in soils,[95] and lower levels can also be detected in air. Toxicol Appl Pharmacol. Epoxy Resin Raw Material CAS 106-89-8 Epichlorohydrin 99.9%Min Epichlorohydrin Price, Find Details and Price about Bisphenol-a-Co-Epichlorohydrin 106-89-8 from Epoxy Resin Raw Material CAS 106-89-8 Epichlorohydrin 99.9%Min Epichlorohydrin Price - Shanghai Guanru Chemical Co., Ltd. Bisphenol A (BPA) is a known endocrine disrupting chemical (EDC), and commonly used as a raw material for production of epoxy resins and polycarbonate plastics, 27 such as water bottles, tableware and food packing materials. Chemical Identity. Product. [96] The solubility of BPA in water is low (~300g/ton of water)[2] but this is still sufficient to make it a significant means of distribution into the environment. Polycarbonate plastic used in automobiles helps make cars lighter and more fuel-efficient while maintaining safety. Bisphenol A diglycidyl ether (DGEBA) is a pale yellow liquid epoxy compound formed by the polycondensation of epichlorohydrin (ECH) and bisphenol A (BPA). Bisphenol S (BPS) is an organic compound with the formula (HOC 6 H 4) 2 SO 2.It has two phenol functional groups on either side of a sulfonyl group. . Therefore, they are effective adhesion for most substrates such as glass, ceramics, silicon wafers, and polymer materials. Bisphenol A was first synthesized by A.P. The synthesis of diglycidyl ether of bisphenol A (DGEBA), the most widely used epoxy resin monomer, is: As a result, FDA amended its food additive regulations to no longer provide for these uses of BPA. Properties form viscous liquid Quality Level 100 composition Epoxide equivalent weight, 172-176 For more chemical safety facts, follow us on social media. It is found in various products including shatterproof windows, eyewear, water bottles, and epoxy resins that coat some metal food cans, bottle tops, and water supply pipes. [33] An excess of phenol is used to ensure full condensation and to limit the formation of byproducts, such as Dianin's compound. 2010 Sep 1;247(2):158-65. d) Doerge DR, Twaddle NC, Vanlandingham M, Brown RP, Fisher JW. One reason people may be concerned about BPA is because human exposure to BPA is widespread. There is no scientific basis to say that BPA-free products are safer than products with BPA. BPA is also found in epoxy resins, which act as a protective lining on the inside of some metal-based food and beverage cans. Toxicol Sci. . [3]NTP-CERHR Monograph on the Potential Human Reproductive and Developmental Effects of Bisphenol A, NIH Publication No. [36] It may be purified by recrystallisation from acetic acid with water. The epoxide resins (also widely known as epoxy resins and, occasionally, as ethoxyline resins) are characterised by the possession of more than one 1,2-epoxy group (I) per molecule. Use a solvent mixture of petroleum ether and ethyl acetate (volume ratio 3:1) a developing solvent to purify it by column chromatography according to the above procedure to obtain DGEBA. Rapid Commun Mass Spectrom. Epoxy resin is a polymer with the molecular formula (C11H12O3)n, which is a general term for a class of polymers containing more than two epoxy groups in the molecule. It may also be used as an ingredient in some resins, which can act as a lining on the inside of some metal food and drink cans. Some of this is further reacted with methacrylic acid to form bis-GMA, which is used to make vinyl ester resins. Polycarbonate plastic is used to make critical components of many medical devices and their housings. Found that primates (including humans) of all ages effectively metabolize and excrete BPA much more rapidly and efficiently than rodents. Some animal studies suggest that infants and children may be the most vulnerable to the effects of BPA. View our page to search various areas of interest and methodology. (sometimes called a dimer) is called bisphenol F, which is an important monomer in the production of epoxy resins. [95] Many of the largest sources of BPA pollution are water-based, particularly wastewater from industrial facilities using BPA. Background. Polymerisation is achieved by a reaction with phosgene, conducted under biphasic conditions; the hydrochloric acid is scavenged with aqueous base. MATERIAL SAFETY DATA SHEET West System Inc. MSDS #105-13a Last Revised: 26APR13 1. Whether you're producing perfume or PVC plastics, the chances are intermediates will . Bisphenol A Epoxy Resin (CAS No. When the low-molecular-weight bisphenol A epoxy resin is continuously reacted with bisphenol A, the obtained bisphenol A epoxy resin has a high polymerization with a relative molecular mass 1400 or more. [99] Regardless, the remaining 29% of BPA will continue through to the environment, with low levels of BPA commonly observed in surface water and sediment in the U.S. and Europe. People are generally exposed to minute levels of BPA, mostly from the ingestion of food or beverages that have been in contact with materials manufactured with BPA. These studies also addressed questions about how long it takes for the body to dispose of BPA. Copolymer epoxy resins were prepared using a two-step process in which 10, 30 and 50% of bisphenol-A was replaced with liquefied bamboo. How does BPA get into the body? Polycarbonate plastic provides the benefit of long-lasting transparency and durability in new, design-inspired LED lighting in vehicles. Toxicity evaluation of bisphenol a administered by gavage to sprague dawley rats from gestation day 6 through postnatal day 90. Furthermore, composite . Bisphenol F (BPF) based epoxy resins are more flexible than that of BPA-based epoxies. The internal rotation function of the ether bond increases the flexibility of the molecule, and the hydroxyl group enhances the chemical reactivity and the bonding ability, the epoxy group cross-links molecules into a three-dimensional network structure by reacting with a curing agent. from modified natural oils and Bisphenol A or Bisphenol A-based epoxy resins. [11]. The study orally dosed pregnant rodents with 100-1000 times more BPA than people are exposed to through food, and could not detect the active form of BPA in the fetus 8 hours after the mother's exposure. [7] As the only by-product is water, it may be considered an industrial example of green chemistry. [26] The utilization of BPA further expanded with discoveries at Bayer and General Electric on polycarbonate plastics. BISPHENOL A EPOXY: is solid at room temperature, in the form of prills, white - peal, white to yellow and with a slight phenolic odour. An official website of the United States government. Learn how outdoors and chemistry work together. BPA Initiatives - The National Institute of Environmental Health Sciences (NIEHS) and National Toxicology Program (NTP) have developed an integrated, multipronged, consortium-based approach to optimize BPA-focused research investments to more effectively address data gaps and inform decision making. In the fall of 2014, FDA experts from across the agency, specializing in toxicology, analytical chemistry, endocrinology, epidemiology, and other fields, completed a four-year review of more than 300 scientific studies. The CLARITY Study, a 5+ year, multipronged U.S. federal government research program and the largest study ever done on BPA, confirms BPAs safety. Bisphenol A (BPA, 80-05-7) is an organic compound used predominantly in the production of products made of polycarbonate plastic and epoxy resins that line food and beverage cans. bisphenol A type Epoxy resin depending on the molecular weight and degree of polymerization n, the resin is yellow to amber transparent viscous liquid (or solid), the average molecular weight in the production of 300~700, n; 2, softening point below 50 is called low molecular weight epoxy resin (I. E. Soft resin); Molecular weight above 1000, n>2, those having a softening point above 60 C. 1675-54-3 Chemical Name: BISPHENOL A DIGLYCIDYL ETHER RESIN CBNumber: CB3749115 Molecular Formula: C21H24O4 Molecular Weight: 340.41 MDL Number: MFCD00080480 MOL File: 1675-54-3.mol MSDS File: SDS Modify Date: 2022-12-30 16:20:48 Request For Quotation BISPHENOL A DIGLYCIDYL ETHER RESIN Properties SAFETY [1]U.S. Food and Drug Administration, Draft Assessment of Bisphenol A for Use in Food Contact Applications, 14 August 2008. Structural formula Name CAS Reactants; Bisphenol AF: 1478-61-1: Phenol: Hexafluoroacetone: Bisphenol F: 620-92-8: Phenol: Polycarbonate plastic is used to make hard plastic items, such as baby bottles, re-useable water bottles, food containers, pitchers, tableware and other storage containers. [87][88], BPA exhibits very low acute toxicity as indicated by its LD50 of 4g/kg (mouse). Chemical name (IUPAC): 4,4'-Isopropylidenediphenol, oligomeric reaction products with 1 -chloro-2,3-epoxypropane, esters with acrylic acid . Paper recycling can be a major source of release when this includes thermal paper,[9][97] leaching from PVC items may also be a significant source,[93] as can landfill leachate. [90] Different expression of ERR- in different parts of the body may account for variations in bisphenolA effects. 1). We provide Bisphenol A epoxy resin safety data sheet view and download for free at Echemi.com. Epoxy resin | C21H25ClO5 | CID 169944 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Toxicol Lett. Compounds without a Phenanthrene Nucleus", "Bio-Based Aromatic Epoxy Monomers for Thermoset Materials", "European Union Summary Risk Assessment Report - Bis (2-ethylhexyl) Phthalate (DEHP)", "Bisphenol S and F: A Systematic Review and Comparison of the Hormonal Activity of Bisphenol A Substitutes", "Exposure of the U.S. population to bisphenol A and 4-tertiary-octylphenol: 2003-2004", "The state of bisphenol research in the lesser developed countries of the EU: a mini-review", "An extensive new literature concerning low-dose effects of bisphenol A shows the need for a new risk assessment", "Bisphenol A and baby bottles: challenges and perspectives", "Consolidated federal laws of canada, Canada Consumer Product Safety Act", "MSC unanimously agrees that Bisphenol A is an endocrine disruptor - All news - ECHA", "EU court confirms BPA as substance of 'very high concern', "Estrogen biology: new insights into GPER function and clinical opportunities", "Global Assessment of Bisphenol A in the Environment: Review and Analysis of Its Occurrence and Bioaccumulation", "A critical analysis of the biological impacts of plasticizers on wildlife", Adrenosterone (11-ketoandrostenedione, 11-oxoandrostenedione), DHEA (androstenolone, prasterone; 5-DHEA), 7-Methyl-19-norandrostenedione (MENT dione, trestione), 11-Methyl-19-nortestosterone dodecylcarbonate, Normethandrone (methylestrenolone, normethisterone), Oxabolone cipionate (oxabolone cypionate), Methylclostebol (chloromethyltestosterone), Andarine (acetamidoxolutamide, androxolutamide, GTx-007, S-4), Enobosarm (ostarine, MK-2866, GTx-024, S-22), 3-Methyl-19-methyleneandrosta-3,5-dien-17-ol, 10,17-Dihydroxyestra-1,4-dien-3-one (DHED), 16,17-Epiestriol (16-hydroxy-17-estradiol), 17-Epiestriol (16-hydroxy-17-estradiol), Epiestriol (16-epiestriol, 16-hydroxy-17-estradiol), Fosfestrol (diethylstilbestrol diphosphate), Furostilbestrol (diethylstilbestrol difuroate), Triphenylmethylethylene (triphenylpropene), https://en.wikipedia.org/w/index.php?title=Bisphenol_A&oldid=1134371642, Short description is different from Wikidata, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License 3.0, Polycyanurates can be produced from BPA by way of its di-, Bisphenol-A formaldehyde resins are a subset of, BPA is used as an antioxidant in several fields, particularly in, Several drug candidates have also been developed from bisphenol A, including, Reprinted in condensed form in: A. Dianin (1892), This page was last edited on 18 January 2023, at 10:18.
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