If more than one IUPAC name is available from REACH registered dossiers, all IUPAC names are displayed in ‘Other names’ section of the Brief Profile. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. Within each of these categories, data is prioritised further by duration (in hours), with longer prioritised over shorter. The date of the last update corresponds to the publication date of the Brief Profile and not necessarily to the date in which the update occurred in the source data (registered dossiers, the C&L Inventory or a regulatory process). Maleic acid homopolymer, also known as 2,3-dimethylmaleic acid or a,b-dimethylmaleate, belongs to the class of organic compounds known as methyl-branched fatty acids. Registrant can provide information on the long and acute/short term exposure for both systemic and local effects of inhalation exposure of workers and/or general population by selecting one of the following hazard assessment conclusions: Prioritisation of display occurs based on the order above. Dynamic viscosity at 20°C provides substance information on the substance’s (dynamic) viscosity per millipascal second at a temperature of 20°C. These study results can however be consulted when opening the source data. This polymer has the potential to disperse oxide ceramics for the preparation of colloidal suspension in aqueous medium . A distinct classification and labelling corresponds to each Index number. This substance has an industrial use resulting in manufacture of another substance (use of intermediates). Oral route provides substance information on the substance’s acute toxicity via the oral route. Please see the endpoint help sections for more specific information on the sections or see the ‘Scientific properties’ header for a more complete overview. Also, if the registrant selects the ‘mg/100 g solvent’; ‘g/kg solvent’; ‘ppb’; ‘vol%’ and ‘other’ as a unit of measure, the data provided will not be processed for the Brief Profile. Data is generally standardised and displayed in milligram per litre or molar per litre. The derived no- or minimum effect level (DN(M)EL) is the level of exposure above which a human should not be exposed to a substance. Maleic acid or cis-butenedioic acid is an organic compound that is a dicarboxylic acid, a molecule with two carboxyl groups. Maleic acid 1 25 1.92 2 25 6.23 C 4 H 4 O 4 Fumaric acid 1 25 3.02 2 25 4.38 C 4 H 4 O 5 Oxaloacetic acid 1 25 2.55 2 25 4.37 3 25 13.03 C 4 H 5 N Pyrrole 25 -3.8 C 4 H 5 NO 2 Succinimide 25 9.62 C 4 H 5 N 3 2-Pyrimidinamine 20 3.45 C 4 H 5 N 3 4-Pyrimidinamine 20 5.71 C 4 H 5 N 3 O Cytosine 1 4.60 2 12.16 C 4 H 5 N 3 O 2 6 … Answer: 10.00 mL Calculate the pH of the solution at the first equivalence point?? Maleic acid (MA) is a dicarboxylic acid that undergoes esterification with ethanol in the presence of cation-exchange resin catalysts to form diethyl maleate. Information on the most sensitive study can be provided by the registrants as: Dermal exposure provides information on the substance’s hazard assessment conclusions regarding dermal exposure (for workers). Registrants can provide data for one or more of the following picklist options: Note: Registrants can also select ‘other’ as the solvent. Note that this does not mean that they are properly structured names according to the IUPAC nomenclature. Data is generally displayed in milligrams per kilogram bodyweight per day. If impurities and/or additives have been identified, an informative sentence is displayed below the graphic. Due to ongoing appeals, all registrations flagged as revoked are published as, In the case of a merge between two companies having a registration for the same substance, the higher tonnage band registration is maintained as active, and the other registration is, Stability in organic solvents and identity of relevant degradation products, Storage stability and reactivity towards container material, Environmental data (monitoring data/field studies), Additional information on environmental fate and behaviour, Skin irritation/corrosion (study results), Respiratory sensitisation (study results), Repeating dose toxicity oral/inhalation/dermal/other routes (study results), EINECS (European INventory of Existing Commercial chemical Substances) List, ELINCS (European LIst of Notified Chemical Substances) List. A 10.00 mL solution of 0.1000 M maleic acid is titrated with 0.1000 M NaOH. Melting/freezing point at 101 325 Pa provides information on the substance melting/freezing point in °C at a pressure of 101 325 Pa. Note: If a temperature value is not provided by the registrant, the information on half-life in water will not be processed for the Brief Profiles. metal, wooden and plastic construction and building materials). Standard for quantitative NMR, TraceCERT, Maleic acid Dimethylmaleic acid is a dicarboxylic acid that is maleic acid in which each of the hydrogens that is attached to a carbon atom is substituted by a methyl group. Otherwise data is displayed reported as provided by the registrant(s).The availability of additional data beyond the five results displayed is indicated by (…). If more than one numerical result is available per endpoint, the range of results (min-max) will be presented (RANGE method). This section summarises the flammability values from all registered dossiers for the substance. Maleic acid is the cis-isomer of butenedioic acid, whereas fumaric acid is the trans-isomer. Although it is found as a naturally occurring organic compound in various fruits, many choose to take malic acid supplements to increase their overall health, as well as treat various maladies. The CAS number is the substance numerical identifier assigned by the Chemical Abstract Service, a division of the American Chemical Society, to substances registered in the CAS registry database. BOD5 provides substance information on the substance’s BOD5 values displayed in O2 (milli)gram per gram test material. Within the context of REACH, impurities are unintended constituents present in a substance as manufactured. Processable data for study results is prioritised by test species (see list below) and subsequently further prioritised by the dose descriptor. Registrants can identify the origin of their substance as being: If more than one type of substance is registered, both types will be displayed. 110-16-7 - VZCYOOQTPOCHFL-UPHRSURJSA-N - Maleic acid [NF] - Similar structures search, synonyms, formulas, resource links, and other chemical information. This section displays the values related to reproductive toxicity from all registered dossiers for the substance. I got pKa1 = 1.76 , pKa2= 2.34 See information under ‘Study results oral’. The availability of additional data beyond the five results displayed is indicated by (…) icon. Precautionary measures and guidance on safe use concern the use and handling of the specific substance, not of the presence of the substance in other articles or mixtures. While it is present in the final substance, it was not intentionally added. Remove contact lenses if present and easy to do – continue rinsing. Please see Registrants/Suppliers details. EC/LC50 for freshwater sediment provides substance information on the substance’s effect concentration or lethal concentration for 50% of the model organisms feeding off the freshwater sediment, generally displayed in milligrams per kilogram (dry weight). Displayed is the most conservative of the prioritised value(s). Only non-confidential use descriptors are displayed and for readability purpose only use descriptors occurring in more than 5% of the total occurrences are displayed. Thirdly the display of data is prioritised by units . Pour density provides substance information on the pour density in grams per millilitre at a temperature measured in °C. Long-term EC10 or LC10 or NOEC for birds provides substance information on the substance’s effect concentration or lethal concentration (long term) for 10% of the birds in the test, or the no observed effect concentration for birds. Displayed are the RANGES of min – max of the PRIORITISED value(s) within the five highest priority groupings of provided data. If you have any comments or suggestions, please contact ECHA using our contact form. More information about classification and labelling can be found in the Regulations section of ECHA website. 85662 Hohenbrunn Germany, NOVEAL, 16 rue Maurice Berteaux 95500 LE THILLAY France, POLYNT S.p.A., via Enrico Fermi, 51 I-24020 Scanzorosciate BG Italy, Procter & Gamble Amiens S.A.S., 163/165 quai Aulagnier 92600 ASNIERES SUR SEINE France, PRODUCTOS CAPILARES L'OREAL S.A., Calle Lopez Bravo n°78 Poligono Industrial Villalonquéjar 09001 BURGOS Spain, Quality Chemicals S.L., C/ Fornal, 35, Pol. This section provides environmental fate and pathways information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. While the Agency tries to aggregate the information on chemicals in the best possible way, ECHA cannot check whether all the information provided by industry is free of errors. Short-term EC50 or LC50 for soil dwelling arthropods provides substance information on the substance’s effect concentration or lethal concentration (short term) for 50% of the soil dwelling arthropods in the test, generally displayed in milligram per kilo soil (dry weight). Y is the check-digit calculated in accordance with the 10-digit ISBN method. Mutations in this gene result in the autosomal recessive disorder argininosuccinic aciduria, or argininosuccinic acid lyase deficiency. Candidate list – indicates if the substance pH, the negative charge develops on oxygen! Per millilitre at a temperature measured in °C and CLP notifications importers responsible... 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