If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. Phenol-formaldehyde polymers are polymers formed by the interaction of a phenol, or a mixture of phenols, and formaldehyde. If generated, an InChI string will also be generated and made available for searching. Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed. Additionally, if available, information on the use of the substance and how consumers and workers are likely to be exposed to it can also be displayed here. Phenol/formaldehyde resins used to manufacture high-pressure laminates are typically produced by reacting phenol and formaldehyde by means of an alkaline catalyst such as sodium hydroxide [10]. A prioritisation hierarchy means that data is taken from harmonised C&L data and regulatory lists first, then REACH registrations and finally from CLP notifications. Benzene is easily converted to chlorobenzene by a variety of methods, one of which is the Dow process. Dynea produces a large volume of formaldehyde as an intermediate product, but we also supply formaldehyde in various consentrations and quality grades to the external market. The ‘Properties of concern’ section shows ECHA-assigned graphical indicators for certain substance properties that are regarded as being of relevance or importance to human health and/or the environment based on the information provided to the Agency. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data. The per substance REACH registration status is being calculated and will be made available as soon as possible. The use information is displayed per substance life cycle stage (consumer use, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites or in manufacturing). Prepolymer resol resins with different phenol/formaldehyde/NaOH molar ratios were synthesized and characterized by technical analysis as well as by C-13 NMR spectra for samples in CD3OD solution. In 1865 the British surgeon Joseph Lister used phenol as an antiseptic to sterilize his operating field. Our editors will review what you’ve submitted and determine whether to revise the article. Phenol-formaldehyde resins are heat-resistant and waterproof, though somewhat brittle. Hydrolysis of chlorobenzene (the Dow process), https://www.britannica.com/science/phenol, National Center for Biotechnology Information - PubChem - Phenol. If the substance was not covered by the EC Inventory, ECHA attributes a list number in the same format, starting with the numbers 6, 7, 8 or 9. If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP. This enzyme is an important component of cellular metabolism for the elimination of formaldehyde, a potent irritant and sensitizing agent that causes lacrymation, rhinitis, pharyngitis, and contact dermatitis. An oxygen atom normally forms two σ bonds with other atoms; the water molecule, H2O, is the... Get exclusive access to content from our 1768 First Edition with your subscription. Phenolic resins are a group of the most versatile polymers yet invented. These notifications can be provided by manufacturers, importers and downstream users. Data sources include IBM Watson Micromedex (updated 7 Dec 2020), Cerner Multum™ (updated 4 Dec 2020), ASHP (updated 3 Dec … Although they came into existence at the very start of the age of polymers, they continued to be developed into more and more applications. This substance is used in the following products: coating products and fillers, putties, plasters, modelling clay. Phenol, any of a family of organic compounds characterized by a hydroxyl (―OH) group attached to a carbon atom that is part of an aromatic ring. ECHA has no public registered data indicating whether or in which chemical products the substance might be used. The purpose of the information provided under this section is to highlight the substance hazardousness in a readable format. Please upgrade your Internet Explorer to a newer version. Linear Formula: C 6 H 5 C 6 H 4 OH. 28064-14-4 - Phenol, polymer with formaldehyde, glycidyl ether - Searchable synonyms, formulas, resource links, and other chemical information. Substances for which classification and labelling data have been notified to ECHA by manufacturers or importers. Butylated hydroxytoluene (BHT) has a much lower toxicity and is a common antioxidant in foods. Catalyst levels range from 0.5% to 3%. Typical mole ratios of formaldehyde to phenol range from 1.2 to 1.9 mol of formaldehyde per mol of phenol. Less-toxic phenols, such as n-hexylresorcinol, have supplanted phenol itself in cough drops and other antiseptic applications. They are formed through the reaction of phenol with formaldehyde, followed by cross-linking of the polymeric chains. We report a facile in situ synthesis of reduced graphene oxide (RGO)–phenol formaldehyde (PF) composites with an interactive oxidation–reduction reaction. Phenolic resins account for a large portion of phenol production. Unexposed grains of silver bromide react more slowly than the exposed grains. Warning! More information about the EC Inventory can be found here. Phenol dissolves to give a 9.3 percent solution in water, compared with a 3.6 percent solution for cyclohexanol in water. It is the responsibility of the substance manufacturers and importers to consult official publications, e.g. InfoCards are generated automatically based on the data available at the time of generation. A majority of data submitters agree this substance is Skin sensitising. This substance is used in the following areas: formulation of mixtures and/or re-packaging and building & construction work. Examples include recommended measures on fire-fighting, transport and recycling and disposal. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard. Although this process seems more complicated than the Dow process, it is advantageous because it produces two valuable industrial products: phenol and acetone. Other substituted phenols are used in the dye industry to make intensely coloured azo dyes. Molecular Weight: 170.21. 2017). Typically novolaks are prepared by the condensation of a … Benzene is converted to isopropylbenzene (cumene) by treatment with propylene and an acidic catalyst. This information has not been reviewed or verified by ECHA, and may change without prior notice. Molecular Formula C 7 H 8 O 2; Average mass 124.137 Da; Monoisotopic mass 124.052429 Da; ChemSpider ID 150578 plasters, cement), fabricated metal products, electrical, electronic and optical equipment and machinery and vehicles. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. The chemical formula of formaldehyde is CH2O: it has one carbon (C) atom, two hydrogen (H) atoms and one oxygen (O) atom. Nhận dạng; Số CAS: Trừ khi có ghi chú khác, dữ liệu được cung cấp cho các vật liệu trong trạng thái tiêu chuẩn của chúng (ở 25 °C [77 °F], 100 kPa). Uses of Formaldehyde – CH 2 O. Such notifications are required for hazardous substances, mixtures, or articles, manufactured or imported at over 1 kg per annum. The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Phenols are not as acidic as carboxylic acids, but they are much more acidic than aliphatic alcohols, and they are more acidic than water. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Therefore, trivial names (i.e., vanillin, salicylic acid, pyrocatechol, resorcinol, cresol, hydroquinone, and eugenol) are often used for the most common phenolic compounds. Substances listed in the EINECS, ELINCS, or NLP inventories. Hazard statements were adapted to improve readability and may not correspond textually to the hazard statements codes description in the European Union Specific Hazard Statements (EUH) or the. Phenol-formaldehyde resins are heat-resistant and … Most of the phenol used today is produced from benzene, through either hydrolysis of chlorobenzene or oxidation of isopropylbenzene (cumene). Tham khảo hộp thông tin. Besides serving as the generic name for the entire family, the term phenol is also the specific name for its simplest member, monohydroxybenzene (C 6 H 5 OH), also known as benzenol, or carbolic acid. This information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure. US3336243A US321295A US32129563A US3336243A US 3336243 A US3336243 A US 3336243A US 321295 A US321295 A US 321295A US 32129563 A US32129563 A US 32129563A US 3336243 A US3336243 A US 3336243A Authority US United States Prior art keywords liquid copolymer phenolic acrylamide resin Prior art date 1963-11-04 Legal status (The legal status is an assumption and is not a … Precautionary statements - describe recommended measures to minimise or prevent adverse effects resulting from exposure to a hazardous product or improper storage or handling of a hazardous product. The POPs Regulation bans or severely restricts the production and use of persistent organic pollutants in the European Union. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. The Prior Informed Consent Regulation administers the import and export of certain hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU countries. The EC or list number is the primary substance identifier used by ECHA. phenol-formaldehyde resin. Other relevant information includes the following: To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory. Guidance on safe use - recommendations by substance registrant on the proper use of the substance in various situations. Release to the environment of this substance can occur from industrial use: in the production of articles. The Support section provides tools and practical guidance to companies which have responsibilities under the EU chemicals legislation. Phenol is the simplest member of a family of compounds in which an -OH group is attached directly to a benzene ring. Furthermore, some substances can be found in an article, but with unlikely exposure (e.g. ECHA organises consultations to get feedback from all interested parties and to gather the widest possible range of scientific information for the regulatory processes. Similar to alcohols, phenols have hydroxyl groups that can participate in intermolecular hydrogen bonding; in fact, phenols tend to form stronger hydrogen bonds than alcohols. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. Please note: Precautionary measures and guidance on safe use concern the use and handling of the specific substance as such, not of the presence of the substance in other articles or mixtures. 6HCHO + 4NH 3 → (CH 2)6N 4 + 6H 2 O. Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. According to the classification provided by companies to ECHA in CLP notifications this substance is toxic to aquatic life with long lasting effects, causes serious eye irritation, causes skin irritation and may cause an allergic skin reaction. The structure of phenol. This is unique source of information on the chemicals manufactured and imported in Europe. For example, phenol (molecular weight [MW] 94, boiling point [bp] 182 °C [359.6 °F]) has a boiling point more than 70 degrees higher than that of toluene (C6H5CH3; MW 92, bp 111 °C [231.8 °F]). inside a watch) or with very low concentrations considered not to pose risks to human health or the environment. The information is aggregated from the data coming from REACH substance registrations provided by industry. We apologise for the inconvenience in the meantime. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment. … This reaction is used commercially to make salicylic acid for conversion to aspirin and methyl salicylate. If the substance is covered by more than one CLH entry (e.g. in case of consumer and professional uses). Author of. This site is not fully supported in Internet Explorer 7 (and earlier versions). Phenol, polymer with formaldehyde. Details of dossier compliance checks and testing proposal evaluation. Phenols are highly reactive toward electrophilic aromatic substitution, because the nonbonding electrons on oxygen stabilize the intermediate cation. Corrections? For example, phenol itself is used (in low concentrations) as a disinfectant in household cleaners and in mouthwash. Synonyms. InfoCards are updated when new information is available. The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. This section is based on three sources for information (harmonised classification and labelling (CLH), REACH registrations and CLP notifications). Molecular Formula. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. In this study, three different boron compounds were used together with alkaline catalyst to synthesize phenol formaldehyde (PF) resole resins in situ. Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA. The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. The human genome contains several non-transcribed pseudogenes related to this gene. phenol formaldehyde. The examples provided are generic examples and may not apply to the specific substance you are viewing. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. Phenol formaldehyde; Structure of Bakelite. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. Hydroquinone (1,4-benzenediol) is a particularly easy compound to oxidize, because it has two hydroxyl groups in the proper relationship to give up hydrogen atoms to form a quinone. This section provides an overview of the calculated volume at which the substance is manufactured or imported to the European Economic Area (EU28 + Iceland, Liechtenstein and Norway). Hydrogen bonding results in higher melting points and much higher boiling points for phenols than for hydrocarbons with similar molecular weights. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. If the hydroxyl group is the principal functional group of a phenol, the compound can be named as a substituted phenol, with carbon atom 1 bearing the hydroxyl group. In industry, phenol is used as a starting material to make plastics, explosives such as picric acid, and drugs such as aspirin. This substance is used for the manufacture of: chemicals, plastic products, fabricated metal products, electrical, electronic and optical equipment and machinery and vehicles. Professor of Chemistry, Whitman College, Walla Walla, Washington. To make more-complicated phenolic compounds, a more general synthesis is needed. In that case, the ATP (Adaptation to Technical Progress) number is displayed. ChemIDplus - 9003-35-4 - KXGFMDJXCMQABM-UHFFFAOYSA-N - Phenol-formaldehyde resin - Similar structures search, synonyms, formulas, resource links, and other chemical information. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). Phenols are widely used in household products and as intermediates for industrial synthesis. This stabilization is most effective for attack at the ortho or para position of the ring; therefore, the hydroxyl group of a phenol is considered to be activating (i.e., its presence causes the aromatic ring to be more reactive than benzene) and ortho- or para-directing. Besides serving as the generic name for the entire family, the term phenol is also the specific name for its simplest member, monohydroxybenzene (C6H5OH), also known as benzenol, or carbolic acid. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. For a detailed overview on identified uses and environmental releases, please consult the registered substance factsheet. A milder, more general reaction is the diazotization of an arylamine (a derivative of aniline, C6H5NH2) to give a diazonium salt, which hydrolyzes to a phenol. the products in which the substance may be used) may refer to uses as intermediate and under controlled conditions, for which there is no consumer exposure. Chlorobenzene is hydrolyzed by a strong base at high temperatures to give a phenoxide salt, which is acidified to phenol. It is possible that a harmonisation is introduced through an amendment to the CLP Regulation. Phenols occur either as colourless liquids or white solids at room temperature and may be highly toxic and caustic. The most obvious difference is the enhanced acidity of phenols. For example, the systematic name for thymol is 5-methyl-2-isopropylphenol. Release to the environment of this substance can occur from industrial use: formulation of mixtures. Most functional groups can survive this technique, as long as they are stable in the presence of dilute acid. Much of the chemistry of phenols is like that of alcohols. Substances which have been registered and can be placed on the EEA market by those companies with a valid registration. [provided by RefSeq, Oct 2008] The precautionary measures and guidance on safe use are as submitted to ECHA by registrants under the REACH Regulation. Three nitro groups are more easily substituted onto phenol, because the strong activation of the hydroxyl group helps to counteract the deactivation of the first and second nitro groups. Compounds with other principal functional groups can be named with the hydroxyl group as a hydroxy substituent. 4 Fluctuations in price of phenol as a result of changes in oil price and concerns about chronic exposure of workers to phenol during the manufacturing process are the main reasons why over the last three decades many researchers have studied replacing phenol with biobased materials. For example, chromic acid oxidizes most phenols to conjugated 1,4-diketones called quinones. Although phenols are often considered simply as aromatic alcohols, they do have somewhat different properties. The Dow process is somewhat more general, but the stringent conditions required often lead to low yields, and they may destroy any other functional groups on the molecule. The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. Chemical Formula C11h16o2 Phenol Formaldehyde Resin Market Price , Find Complete Details about Chemical Formula C11h16o2 Phenol Formaldehyde Resin Market Price,Phenol Formaldehyde Resin,Alkyl Phenolic Resin,Bakelite Phenolic Resin from Adhesives & Sealants Supplier or Manufacturer-Tianjin Top Global Co., Ltd. Formaldehyde, phenol polymer. Information on precautionary measures and the safe use is submitted by the registrant of a substance and the registrant is solely responsible for its accuracy and completeness. For example, vanillin, the principal flavouring in vanilla, is isolated from vanilla beans, and methyl salicylate, which has a characteristic minty taste and odour, is isolated from wintergreen. Many of the more complex phenols used as flavourings and aromas are obtained from essential oils of plants. Let us know if you have suggestions to improve this article (requires login). Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. Oxidation yields a hydroperoxide (cumene hydroperoxide), which undergoes acid-catalyzed rearrangement to phenol and acetone. the electronic edition of the Official Journal of the European Union. Formaldehyde reacts with ammonia forms formamidine and water. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. An effective explosive needs a high proportion of oxidizing groups such as nitro groups. Phenol itself is the only one of the family that you are likely to need to know about for UK A level purposes. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH). The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. The polymerization of phenol with formaldehyde involves electrophilic aromatic substitution at the ortho and para positions of phenol (probably somewhat randomly), followed by cross-linking of the polymeric chains. Phenol-formaldehyde resin. Phenol-formaldehyde resins are inexpensive, heat-resistant, and waterproof, though somewhat brittle. For example, the systematic name for vanillin is 4-hydroxy-3-methoxybenzaldehyde. This substance is used for the manufacture of: plastic products, mineral products (e.g. Formaldehyde is made of methanol and phenol from benzene using the cumene process. Chemists were able to determine their structures process ), fabricated metal products, mineral (! Of oxidizing groups such as creosote safe use are as submitted to echa by registrants under REACH... 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