Data for workers – eye exposure provides information on the substance’s hazard assessment conclusions regarding eye exposure (for workers). This section summarises the water solubility values from all registered dossiers for the substance. If more than one result is available per endpoint, the range of results (min-max, RANGE method) will be presented. The five highest priority groupings of provided data are displayed in milligram per litre or molar per litre. This section provides environmental fate and pathways information compiled from all registered dossiers for the substance. REACH registration dossiers notifications. Note: Registrants can also select ‘other’ as the test species. CAS names gives the name(s) provided to ECHA by the Chemical Abstracts Service, a division of the American Chemical Society, where available. 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 sediment (dry weight). Carbonylation of the methyl iodide in turn affords acetyl iodide, which reacts with acetate salts or acetic acid to give the product. Authorisation list (Annex XIV) – indicates if the substance is included in the Authorisation List. BOD5 provides substance information on the substance’s BOD5 values displayed in O2 (milli)gram per gram test material. Praesent et nulla orci.
Other relevant information includes the following: To see the full list of notified classifications and have more information on impurities and additives relevant to classification, you can consult the C&L Inventory. Please upgrade your Internet Explorer to a newer version. Data is generally displayed in milligram per litre or molar per litre. If so, the data provided is not processed for the Brief Profile. List of substances subject to the POPs Regulation - Indicates if the substance is included in the POPs Regulation. 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). To a decreasing extent, acetic anhydride is also prepared by the reaction of ketene (ethenone) with acetic acid at 45–55 °C and low pressure (0.05–0.2 bar).[7]. Processable data is prioritised by the toxicity descriptor type (see list below) and subsequently further prioritised by duration (longer prioritised over shorter).
Data is generally displayed in milligram per kilo bodyweight. Values are presented in (nano/ micro/milli)gram per litre and/or (nano/ micro/milli)molar per litre. Different compositions or impurity profiles often lead to different classifications. This section summarises the values related to toxicity to mammals (other above-ground organisms) from all registered dossiers for the substance. Aldehydes react with acetic anhydride in the presence of an acidic catalyst to give geminal diacetates. The brief profile is based on non-confidential data contained in ECHA’s databases at the time of generation. Values are generally displayed in milligram per litre.
The substance must be disposed in accordance with local/regional/national/international regulation. Koc provides substance information on the substance’s Koc adsorption at a temperature measured in °C and a percentage of organic carbon. ); use non-sparking tools; wash parts of the body (as specified by manufacturer/supplier)in contact with substance thoroughly after handling; avoid breathing the dust, fume, gas, mist, vapours or spray; wear respiratory protection. Y is the check-digit calculated in accordance with the 10-digit ISBN method. . Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH3CO)2O. [15] A former industrial route to vinyl acetate involved the intermediate ethylidene diacetate, the geminal diacetate obtained from acetaldehyde and acetic anhydride:[16], Acetic anhydride dissolves in water to approximately 2.6% by weight. Compare the structure of an acid anhydride with that of an acyl chloride - looking carefully at the way it is color in the diagram. Information on Registered Substances comes from registration dossiers which have been assigned a registration number. Displayed are the RANGES of min – max of the PRIORITISED value(s) within the five highest priority groupings of provided data. [22], Except where otherwise noted, data are given for materials in their. Tap density provides substance information on the bulk density per grams per millilitre at a temperature measured in °C. Please note that the information provided in the free-text fields is not published in the brief profiles.
Values are presented in (nano/ micro/milli)gram per litre and/or (nano/ micro/milli)molar per litre. This section displays the values related to acute toxicity from all registered dossiers for the substance. Applicant’s summary and conclusion – Interpretation of results. Applicant’s summary and conclusion – Interpretation of results provides information on the substance’s biodegradation properties in water and can be registered by the registrants by one or more of the following picklist options: Note: Registrants can also select ‘other’ as picklist option for describing the biodegradation values of the substance in water. Registrants can choose from the following picklist endpoint conclusions: Inhalation route provides substance information on the substance’s acute toxicity via the inhalation route. The following properties have been highlighted as critical: The substance properties displayed in this section (with the exception of PBT properties) are derived from harmonised classification and labelling (CLH) and/or REACH registered dossier information. Degradation rate constant (OH Radicals) provides substance information on the substance’s degradation rate constant with OH Radicals as a reaction type in cm3molecule-1s-1, cm3molecule-1d-1, m3molecule-1s-1 or m3molecule-1d-1.
These substances cannot be placed on the market or used after a given date, unless an authorisation is granted for their specific use, or the use is exempted from authorisation.
Processable data is prioritised by the toxicity descriptor type (see list below) and subsequently further prioritised by duration (longer prioritised over shorter). 215–540–4, is covered by three harmonisations – 005–011–00–4; 005–011–01–1; 005–011–02–9), CLH information cannot be displayed in the Brief Profile as the differences between the CLH classifications require manual verification.
Brief Profile - Last updated: 11/11/2020 Print. H atm provides substance information on the substance’s Henry’s Law Constant in atm at temperature measured in °C and a pressure measured in Pascal. This section displays the values related to endocrine disrupter mammalian screening from all registered dossiers for the substance. Note: Results without a measurement condition (temperature) are not processed for the Brief Profile. Long-term EC10 or LC10 or NOEC for mammals provides substance information on the substance’s effect concentration or lethal concentration (long term) for 10% of the mammals in the test, or the no observed effect concentration for mammals. [10] For example, the reaction of acetic anhydride with ethanol yields ethyl acetate: Often a base such as pyridine is added to function as catalyst. If there is a confidentiality claim, an indication is provided with the tag [Confidential]. Values are generally displayed in milligram per litre.
Processable data for study results is prioritised by test species (see list below) and subsequently further prioritised by the dose descriptor. A. Bender "3-Nitrophthalic Anhydride" Org.
RST is the consecutive number of the substance in the series ABC. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. This section summarises the values related to Henry’s law constant (H) from all registered dossiers for the substance.
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