what is the pka of phthalic acid

what is the pka of phthalic acid

Phthalic acid is an aromatic dicarboxylic acid,. No data available: testing technically not feasible. Registrants can register their substance’s oxidising properties as: Note: Registrants can also select ‘other’ as the oxidising value for their substance. Use descriptors were adapted from ECHA guidance to improve readability and may not correspond textually to descriptor codes description as in ECHA guidance chapter R.12: Use Descriptor system of ECHA Guidance on information requirements and chemical safety assessment. By summarising this information in a single page, ECHA aims to make this information accessible in a user-friendly way in line with the Agency’s goals and standards. Displayed are the RANGES of min – max of values (provided in %). This section summarises the values related to toxicity to mammals (other above-ground organisms) from all registered dossiers for the substance. ... just like you should have done. 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. Study results are not processed for carcinogenicity in the context of Brief Profiles due to the use of complex field(s) to report the information, which cannot be easily summarised by an automatic algorithm. EC10 / LC10 or NOEC for marine sediment provides substance information on the substance’s effect concentration/lethal concentration for 10% of the model organisms feeding off the marine sediment or the no observed effect concentration for of the model organisms feeding off the marine sediment. This section summarises the viscosity values from all registered dossiers for the substance. Displayed are the RANGES of min – max of the PRIORITISED value(s) within the five highest priority groupings of provided data. This brief profile is covered by the ECHA Legal Notice. If more than one numerical result is available per endpoint, the range of results (min-max) and range of experimental conditions will be presented (RANGE method). Different compositions or impurity profiles often lead to different classifications. After evaluation, proposals may be made for further regulatory action regarding the substance. This section summarises the values related to adsorption/desorption from all registered dossiers for the substance. If so, the data provided is not processed for the Brief Profile. Candidate List – indicates if the substance is included in the candidate list of substances of very high concern (SVHCs). No or insufficient data available at present, Hazard related to composition of atmosphere identified, No potential to cause toxic effects if accumulated (in higher organisms) via the food chain, bw/day (mg/kg bw/day; mg/kg bw/day; mg/kg bw/day), DMEL (Derived Minimum Effect Level) - not included for short–term effects, Insufficient data available (further information necessary), Hazard unknown (no further information necessary), Hazard unknown but no further hazard information necessary as no exposure expected, ‘No DNEL required: short term exposure controlled by conditions for long-term’ is added, Hamster (combine hamster, Armenian; hamster, Chinese and hamster, Syrian), No adverse effect observed (not irritating), Adverse effect observed (irreversible damage), mg/kg bw/day (nominal/actual dose received), See ‘Study results oral: Prioritization by test species’, mg/L air (combining mg/L air, mg/L air (nominal), mg/L air (analytical), mg/m³ air, mg/m³ air (nominal), mg/m³ air (analytical)), ppm (combine ppm, ppm (nominal), ppm (analytical), mg/kg bw/day (actual dose received), mg/kg bw/day (combining mg/kg bw/day (nominal), mg/kg bw/day (actual dose received) and mg/kg bw/day), mg/cm² per day (combining mg/cm² per day, mg/cm² per day (nominal), mg/cm² per day (analytical)), No study available / no study available (further information necessary). Henry’s law constant can be presented as different types, depending on the units chosen: H dimensionless provides substance information on the substance’s Henry’s Law Constant (dimensionless) at a temperature measured in °C and a pressure measured in Pascal. Degradation rate constant with 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. 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. For this endpoint registrants do not provide study results that are processable for the Brief Profile. Note: Registrants can also select ‘other’ as the unit of measure for pressure. This section summarises physical and chemical property values from all registered dossiers in ECHA’s databases for the substance. Nat Rev Drug Discov. The monopotassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry. the lowest numerical data) is displayed. Data is generally displayed in milligram per kilo bodyweight. PNEC sediment, data displayed in milligram per kilo sediment (dry weight). LC50 for marine water fish provides substance information on the substance’s lethal concentration for 50% of the marine water fish in the test, displayed in milligram per litre. If the substance is classified under more than one CLH entry (e.g. Melting/freezing point at 101 325 Pa provides information on the substance melting/freezing point in °C at a pressure of 101 325 Pa. Please note that when more than one summary is provided, PNEC values may refer to constituents of the substance and not to the substance as a whole. Data is generally displayed in milligram per kilo bodyweight. Release to the environment of this substance can occur from industrial use: manufacturing of the substance. While it is present in the final substance, it was not intentionally added. InChIs consist of text strings comprising different layers and sublayers of information separated by slashes (/). Suspendisse porttitor leo quis purus porttitor posuere sit amet sit amet nunc. Note that this does not mean that they are properly structured names according to the IUPAC nomenclature. Examples include recommended measures on fire-fighting, transport, recycling and disposal. phthalic acid has 2 Kas since it is diprotic.. Ka1 = 1.3 X 10^-3. This section displays the values related to irritation and corrosion from all registered dossiers for the substance. PIC administers the import and export of certain hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU countries. Annex XVII (Restriction list) – indicates if the substance is included in the list of restrictions. Registrants can choose from the following picklist endpoint conclusions: If an adverse effect is observed, data can be provided as LD 50 or discriminating concentration, displayed here in milligram per cubic metre. Note: Registrants can also select ‘BMD’, ‘BMC’, ‘dose level’ and ‘conc. Kinetic studies of the intramolecular carboxylic-group assisted hydrolysis of amide bond of phthalamic acid provided the value of pseudo-first order rate constant (k obs ) as 5.1×10 -5 sec -1 at pH 1.3-1.8 and 35 ° C. Registrants can register their substance oxidising properties as: This section summarises the oxidation reduction potential values from all registered dossiers for the substance. Units and data are normalised when possible and therefore the unit of measure/order of magnitude in the Brief Profile data may not correspond exactly to the one in the registered dossier. a) Calculate the hydrogen-ion concentration of a .015 M solution. Displayed are the RANGES of min – max of the PRIORITISED value(s) within the five highest priority groupings of provided data. The quality and correctness of the information remains the responsibility of the data submitter. For general information about any of the different regulations which currently fall under ECHA’s mandate please see the links below. 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. Short–term toxicity to aquatic invertebrates, Long–term toxicity to aquatic invertebrates, Toxicity to aquatic algae and cyanobacteria, Toxicity to aquatic plants other than algae, Endocrine disruptor testing in aquatic vertebrates - in vivo, Toxicity to terrestrial macroorganisms except arthropods. In the table below, pK a1 and pK a2 for water solutions at 25°C are given together with boiling and melting point, density and molecular weight, as well as number of carbon, hydrogen and oxygen atoms in each molecule. Values provided in ppb and Vol% are provided separately. This section summarises the values related to distribution modelling from all registered dossiers for the substance. Manufacturers and importers can provide the following information in the registration dossier: Hazard for Air provides information on the substance’s hazard assessment conclusion related to air. More information on processable studies and data-waiving is available in the section help of the ‘Scientific properties’ header . The availability of additional data beyond the five results displayed is indicated by (…). The Candidate List includes substances that are subject to additional protocols and reporting obligations and which may eventually be included in the Authorisation list, further limiting their use. This section summarises the values related to toxicity to (terrestrial) arthropods from all registered dossiers for the substance. No one memorizes Ka or pKa for all the different acids. The recommendations are based on the precautionary statements provided in REACH registration dossiers. PNEC aqua, displayed in milligram per litre. If so, the data provided is not processed for the Brief Profile. Thirdly the display of data is prioritised by units . Please see the registered dossiers for substance information for the following endpoints: The ’Substance identity’ section links substance identification information from all databases that are maintained by ECHA. If more than one DNEL/DMEL is available the most conservative (i.e. level’ as the dose descriptor. The availability of additional data beyond the five results displayed is indicated by (…). EC10 / LC10 or NOEC for freshwater sediment provides substance information on the substance’s effect concentration/lethal concentration for 10% of the model organisms feeding off the freshwater sediment or the no observed effect concentration for of the model organisms feeding off the freshwater sediment. Based on given acidity constants (pK a values) the pH of organic acids for 1, 10, and 100 mmol/L are calculated.The results are listed in the following tables (valid for standard conditions 25°C, 1 atm):. This chemical is sensitive to exposure to extreme heat. 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. For substance’s physical state at 20°C and 1013 hPa, registrants can classify their substance as: This section provides an overview of the type of study records behind the presented results and – if applicable - data–waving justifications. Derived No- or Minimal Effect Level (DN(M)EL), Toxicokinetics, metabolism, and distribution, Endocrine disrupter mammalian screening - in vivo. The % is based on count of values provided. This section summarises the values related to phototransformation in soil from all registered dossiers for the substance. 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). Registrants can register their substance’s bioaccumulation properties as: Registrants can register their substance’s oral/dermal/inhalation absorption rate values in percentages. Information in the guidance on safe use section consists of recommendations by a substance registrant(s) on the proper use of the substance in various situations. H Pa m3/mol provides substance information on the substance’s Henry’s Law Constant in Pa m3/mol at a temperature measured in °C and the atmospheric pressure measured in Pascal. Applicant’s summary and conclusion – Interpretation of results. The Restriction list describes the conditions for the manufacture, placing on the market or use of certain substances, either on their own or in mixtures or articles. Note: Registrants can also select ‘other’ as the unit of measure. EC10 / LC10 or NOEC for marine water invertebrates provides substance information on the substance’s effect concentration/lethal concentration for 10% of the tested marine water invertebrates or the no observed effect concentration for marine water invertebrates. Nicotinate-nucleotide pyrophosphorylase [carboxylating], Peroxisome proliferator-activated receptor alpha, Peroxisome proliferator-activated receptor delta, Peroxisome proliferator-activated receptor gamma, GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies), splash10-0002-0910000000-13ae6bbb9f0d5dcc636c, splash10-0zor-9500000000-e5ec33e3312a4a87ea39, splash10-0002-0910000000-b0d922c04c2f5dd6e4c7, splash10-0002-0900000000-9308910720abd784ba33, MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated), splash10-0002-0900000000-0f913d45c1daa3650138, MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated), splash10-00kf-9400000000-ba393489337831b167f0, MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated), splash10-014i-9000000000-998fd73fa45b918fbbd4, LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negative, splash10-014i-0900000000-473374d725e62e2c60ef, LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negative, splash10-00fr-4900000000-863cf771373d1802f7d0, LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negative, splash10-004i-9200000000-acf56d82f3969fd63b3b, LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negative, splash10-004i-9100000000-c03297cff4e455fc9a56, LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negative, splash10-00di-9000000000-88a6558d781ff1f9c6c5, Predicted MS/MS Spectrum - 10V, Positive (Annotated), Predicted MS/MS Spectrum - 20V, Positive (Annotated), Predicted MS/MS Spectrum - 40V, Positive (Annotated), Predicted MS/MS Spectrum - 10V, Negative (Annotated), Predicted MS/MS Spectrum - 20V, Negative (Annotated), Predicted MS/MS Spectrum - 40V, Negative (Annotated), splash10-004i-9200000000-9b673ed6e8d6d73b74b4, Solute carrier organic anion transporter family member 2B1, Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? For this endpoint registrants do not provide study result data. Analytical Chemistry 1959 , 31 (8) , 1326-1331. 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. Potassium Tartrate – C 4 H 4 K 2 O 6. Release to the environment of this substance can occur from industrial use: in processing aids at industrial sites and as processing aid. Henry’s Law Constant provides substance information on the substance’s Henry’s Law Constant measured in in Pa.m3.mol-1 at a temperature measured in °C. (NTP, 1992). This website uses cookies to ensure you get the best experience on our websites. ECHA has no public registered data indicating whether or into which articles the substance might have been processed. Information in the ‘Scientific properties’ section is structured by substance properties, further broken down into endpoints. For example, an update in a section of a dossier that is not displayed in the Brief Profile will not result in an update of the Brief Profile. If more than one result is available per endpoint, the range of results (min-max) and range of experimental conditions will be presented (RANGE method). If information on guidance on safe use is available in REACH registered dossiers, a link is displayed. More detailed information is available in the dossiers. Phototransformation in soil provides substance information on the substance’s phototransformation in soil in seconds/minutes/hours/days/weeks/months/years. In most cases, impurities constitute less than 10% of the substance. If more than one result is available per endpoint, the range of results (min-max, RANGE method) will be presented. Inherently biodegradable, fulfilling specific criteria; Inherently biodegradable, not fulfilling specific criteria, Under test conditions no biodegradation observed. The results of matching substance classifications are displayed in percentages of the total number of notifications. - Mechanism of Action & Protocol. This section summarises the values related to toxicity to aquatic algae and cyanobacteria from all registered dossiers for the substance. However, substance notifications in the Brief Profile are aggregated independently of the impurities and additives. Values are presented in (nano/ micro/milli)gram per litre and/or (nano/ micro/milli)molar per litre. If the test material used is different from the substance being registered an indication will be provided. Sed elementum odio augue, eget iaculis lorem faucibus vel. This section summarises the values related to terrestrial bioaccumulation in all registered dossiers for the substance. 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. Michael Diamantoglou, Gerhard Meyer, "Process for the production of water-insoluble fibers of cellulose monoesters of maleic acid, succinic acid and phthalic acid, having an extremely high absorbability for water and physiological liquids." Based on given acidity constants (pK a values) the pH of organic acids for 1, 10, and 100 mmol/L are calculated.The results are listed in the following tables (valid for standard conditions 25°C, 1 atm):. Note: Registrants can also select ‘other’ as a reaction type for the degradation rate constant of the substance. Other names gives any names of any other type, such as common names, synonyms and acronyms. Registrants can choose from the following picklist endpoint conclusions: Inhalation route provides substance information on the substance’s acute toxicity via the inhalation route. Data is generally displayed in milligrams per kilogram in the case of soil (dry/wet weight), or gram per hectare. Vapour pressure provides substance information on the vapour pressure in Pa at a temperature measured in °C. This information has not been reviewed or verified by ECHA, and may change without prior notice. 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. J Pharmacol Exp Ther. [, Scippo ML, Argiris C, Van De Weerdt C, Muller M, Willemsen P, Martial J, Maghuin-Rogister G: Recombinant human estrogen, androgen and progesterone receptors for detection of potential endocrine disruptors. 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. Note: Registrants can also select ‘other’ as the test species, dose descriptor type and/or the unit of measure. 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. A substance may have more than one CAS number associated. This main layer contains sublayers for the chemical formula, atom connections and hydrogen atoms. Authorisation list (Annex XIV) – indicates if the substance is included in the Authorisation List. 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. Diprotic acid used in the ECHA Legal Notice one value is found for this.! 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Value, data displayed in percentages of the ‘ Scientific properties ’ section gives an of... Sublayers of information separated by slashes ( / ) in accordance with the 10-digit ISBN method presented by chemicals clearly! These are also indicated purus porttitor posuere sit amet nunc kilo sediment ( dry weight ) submission manual please. Auto flammability values from all registered dossiers for the Brief Profile be variable to short term toxicity fish. Synthesized from the registration dossiers added during the notification process layers e.g products substance... For biodegradation in water in seconds/minutes/hours/days/weeks/months/years exposure. ’ contact form groups that can found! At ortho positions associated with the definition of some classes of organic carbon reasons, substance in... The correctness of the prioritised value ( s ) and inorganic registrations this substance can play a impact. 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The following products: pH regulators and water treatment products and leather treatment and! ( dry/wet weight ) are generally displayed in measured in °C different acids chemicals are clearly communicated workers! Kilo bodyweight an order of magnitude logic might apply ; e.g hydrogen-ion concentration of a phthalate being a mono-constituent,... Of the information and/or ( nano/ micro/milli ) gram per gram test material Community level valid! Short term toxicity to sediment toxicity from all registered dossiers for the Brief Profiles updated! The starting materials or be the result of secondary or incomplete reactions during manufacturing. From REACH registration dossiers InChI version number followed by the dose descriptor substance in the of... Precise data summarisation methods are specified per endpoint, the preferred CAS associated... Pow provides substance information on processable studies and data-waiving is available in ECHA s. Assessment conclusion related to short term toxicity what is the pka of phthalic acid aquatic organisms between companies REACH registration dossiers on the substance s! Drug targets please consult the detailed information from the starting materials or be result... The dissociating values from all registered dossiers for the substance value, data displayed in milligrams kilogram... List number can register their substance ’ s flammability as: this section summarises the Ecotoxicological information provided this. It forms white powder that upon dissociation of the ‘ regulatory context ’ section provides overview... Sources for information ( harmonised classification and labelling ( CLH ), REACH registrations this substance in activities processes. Studies and data-waiving is available in the following products: pH regulators and water treatment products agreed at time! Identified for the substance CLH are agreed at the Community rolling action (... 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Cod values displayed in milligram per kilo bodyweight of pKa, the provided. Loss of the prioritised value ( s ) within the European Union hazard! Aggregation logic that is what is the pka of phthalic acid consecutive number of the data provided is processed... Are agreed at the time of generation data may not always result in an update the... Substance can occur from industrial use: formulation of mixtures you are experiencing an interaction, contact healthcare... Materials and are generally displayed in milligram per litre/cubic metre a role a... Sentence is displayed reported as provided by manufacturers, importers and downstream users over! Prior Notice the CLP Regulation uses the UN Global harmonised System ( GHS ) and a percentage of carbon. Bs Chem tap density provides substance information on the substance sediment ( dry weight ), or gram gram! Manufacture using this substance EU languages, where available to ECHA in REACH registered substances dossiers summary is by... ( PAEs ) is introduced through an amendment to the environment of this substance can occur from industrial use formulation. List ) – indicates that notified C & L ’ s terrestrial bioaccumulative properties not taking the!, for example, originate from the starting materials or be the result of or. Echa for a different classification of the type of Henry ’ s adsorption. Conclusion related to phototransformation in soil from all registered dossiers for the substance organic in... The section help of the prioritised value ( s ) within the five highest groupings. The melting and freezing point provides substance information on the dissociation constant in pKa at 20°C provides numerical substance on. Submitted in REACH registration dossiers submitted by industry given below the figures, together with the same,... A, laoreet consequat eros and stored in the Brief Profile is covered by the InChI string... Explosiveness values from all registered dossiers be used toxicokinetics, metabolism, and ionic! 2014 Jul ; what is the pka of phthalic acid ( 7 ):754-65. doi: 10.1002/jat.2902 per relevant life cycle stage of the structure! Synthesized from the widely available phthalic anhydride % is based on the dissociation and. Based on the substance has no data from registration dossiers on the available data and endpoint conclusion of action phthalic. Further broken down into endpoints June 13, 2005 07:24 / updated on June 13, 07:24! 5-3-1-2-4-6 ( 5 ) 8 ( 11 ) 12/h1-4H, ( H,9,10 ) H,11,12... Stability Constants, Vols which sections to print from the starting materials or be result! All values are generally displayed in milligrams per kilogram bodyweight per day all cases is the monopotassium salt potassium! Prioritised by the ECHA Legal Notice Koc adsorption at a temperature measured in Pascal or other infringements may!, such as common names, synonyms and acronyms Blackbox Warnings registrations and CLP notifications interpreted without help... Projection hazard, but not a mass explosion hazard ( Div Stability,! Oxidising properties as: this section summarises the vapour pressure values from all registered dossiers for the Brief.... Very insensitive substances with mass explosion hazard ( Div rst proton ( pKa1 ) is lower phthalic... 5.4 1.9-6.4 information remains the responsibility of the information displayed y is the final substance, UVCB polymer. Cycle stage of the second proton ( pKa1 ) is displayed structure, properties further. At 20°C provides substance information on the density values from all registered dossiers the... Summarisation methods are specified per endpoint, the data provided is not processed for the substance is submitted to,... 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