Jeannette. The EC name and number are the official identifiers for substances within the European Union and can be found in the EC Inventory. Different classifications can also be due to technical errors made during the notification process. Why don't libraries smell like bookstores? The basis of SMILES is the representation of a valence model of a molecule. Candidate List – indicates if the substance is included in the candidate list of substances of very high concern (SVHCs). Registrants can choose from the following (picklist) conclusions: Displayed is the MOST CONSERVATIVE of the value(s) provided, ranking in the order as above. 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).Relative density provides substance information on the relatively density (measurement units are not processed for relative density) at a temperature measured in Celsius (°C). Note that translated names are available at this time only for substances which have a harmonised C&L or which are approved Biocidal active substances. A distinct classification and labelling corresponds to each Index number. Displayed is the most conservative of the prioritised value(s). PBT properties are derived from REACH registered substances dossiers. If so, the data provided is not processed for the Brief Profile. Duis pulvinar non magna ac viverra. ... Is there any difference in pka values compared with sodium and potassium carbonate? The quality and correctness of the information remains the responsibility of the data submitter. 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. The availability of additional data beyond the five results displayed is indicated by (…).Processable data is prioritised by the toxicity descriptor type (see list below) and subsequently further prioritised by duration (longer prioritised over shorter). If additional information derived from classification and labelling (C&L) notifications to ECHA under the CLP Regulation exists, this will be displayed below the information derived from harmonised classification and labelling and REACH registrations. If so, the data provided is not processed for the Brief Profile. Sodium amide, commonly called sodamide (systematic name sodium azanide), is the inorganic compound with the formula NaNH 2.It is a salt composed of the sodium cation and the azanide anion. This section summarises the values related to phototransformation in air from all registered dossiers for the substance. Half-life in air provides substance information on the substance’s dissipation half-life in air in seconds/minutes/hours/days/weeks/months/years. A reagent that, in a reaction, acts as the hydride ion would if it were nucleophilic is called a hydride reagent or hydride equivalent. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH). Classifications under REACH have to be supported by data (support studies). 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. 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. Conditions to Avoid Incompatible products. The POPs regulatory processes identified for the Brief Profile are: Classification, Labelling and Packaging (CLP)The CLP Regulation (1272/2008) entered into force on 20 January 2009. This section displays the values related to genetic toxicity from all registered dossiers for the substance. REACH and/or CLP notifiers may classify a substance differently based on different studies or the way they access the data. An IUPAC name is based on the international standard chemical nomenclature set by the International Union of Pure and Applied Chemistry (IUPAC). Welcome to the ECHA website. Applicant’s summary and conclusion – Interpretation of results. The Brief Profile summarizes the non-confidential data on substances as it is held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The source of the information is mentioned in the introductory sentence of the hazard statement. See ‘Summary oral systemic effects’, except: ‘See Summary inhalation systemic effects’. This section summarises the surface tension values from all registered dossiers for the substance. If there is more than one result with the same value, data is further prioritised by test type and endpoint conclusion. According to the harmonised classification and labelling (CLP00) approved by the European Union, this substance in contact with water releases flammable gases which may ignite spontaneously. More information about the EC Inventory can be found here. 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. Bulk density provides substance information on the bulk density in (kilo)grams per (centi)metre (cm/m) at a temperature measured in °C. 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). pH provides substance information on the substance’s acidity level measured in pH at a temperature measured in °C and a concentration measured in (milli)grams per litre. If such information is available in ECHA’s database and is it not claimed confidential, the molecular formula and molecular structure will be displayed here. Regulatory process names gives the names under which the substance appears in ECHA's regulatory processes and lists. If more than one value is found for this section, the range of min-max values will be displayed here. If you have any comments or suggestions, please contact ECHA using our contact form. Data for calculating the ’total tonnage’ band is extracted from REACH registered dossiers for the last year reported on the tonnage manufactured or imported, unless the tonnage band has been claimed confidential. See the official IUPAC website for more information on the International Union of Pure and Applied Chemistry. Bioaccumulation Factor (aquatic species) L/kg ww provides substance information on the substance’s bioaccumulative properties for aquatic species measured in litre per kilogram  (wet weight). Hazard for terrestrial organisms provides information on the substance’s hazard assessment conclusion related to terrestrial organisms/soil. level’ as the dose descriptor. List of substances proposed as POPs - Indicates if the substance has been proposed for its inclusion in the Stockholm Convention or if a proposal is under preparation in the European Union. The percentage is based on the count of values provided. Long-term EC10 or LC10 or NOEC for soil dwelling arthropods provides substance information on the substance’s effect concentration or lethal concentration (long term) for 10% of the soil dwelling arthropods in the test, or the no observed effect concentration for soil dwelling arthropods. 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. This section summarises the values related to aquatic/sediment bioaccumulation in all registered dossiers for the substance. Annex V – indicates if the substance is prohibited from export. This substance is used in the following activities or processes at workplace: closed batch processing in synthesis or formulation and transfer of chemicals at dedicated facilities. If more than one value is available, results are displayed as concatenated distinct values, ordered by most to least commonly provided, with the % of provided values appended. Olesen ChemPharm GmbH, Gustav-Becker-Strasse 20B 21218 Seevetal Germany, DOW AGROSCIENCES LIMITED, CPC2 Capital Park, Fulbourn Cambridge CB21 5XE Cambridgeshire United Kingdom, ERREGIERRE SPA, Via Francesco Baracca, 19 24060 SAN PAOLO D'ARGON BERGAMO Italy, S.Goldmann GmbH & Co. KG, Schillerstr. Data is generally displayed in milligram per kilo bodyweight. LC50 for freshwater invertebrates provides substance information on the substance’s lethal concentration for 50% of the freshwater invertebrates in the test, displayed in milligram per litre. Displayed are the RANGES of min – max of values (provided in %). pKa ~ 35 (the conjugate acid is H2) Source(s): google. This section summarises the auto flammability values from all registered dossiers for the substance. pKa Chart conjugate acid conjugate base conjugate acid conjugate base s t r o n g e s t a c i d s w e a k e s t b a s e s hydrogen sulfide 1 2 (bicarbonate) hydrochloric acid -7 carbocations -3. Reacts … Solubility in mg/100g standard fat at 20°C provides substance information on the substance solubility in standard fat in milligram per 100 gram at a temperature of 20°C. Favourite answer. Short-term EC50 or LC50 for soil microorganisms provides substance information on the substance’s effect concentration or lethal concentration (short term) for 50% of soil microorganisms in the test, generally displayed in milligram per kilo soil (dry weight). If more than one numerical result is available per endpoint, the range of results (min-max, RANGE method) will be displayed. the minimum numerical value associated with the highest priority picklist item. EC10 / LC10 or NOEC for freshwater invertebrates provides substance information on the substance’s effect concentration/lethal concentration for 10% of the tested freshwater invertebrates or the no observed effect concentration for freshwater invertebrates. More information on processable studies and data-waiving is available in the section help of the ‘Scientific properties’. Dissipation half-life provides substance information on the substance’s dissipation half-life for the parent compound per second/minute/hour/day/week/month/year. Inherently biodegradable, fulfilling specific criteria; Inherently biodegradable, not fulfilling specific criteria, Under test conditions no biodegradation observed. More information about classification and labelling can be found in the Regulations section of ECHA website. Note: Registrants can also select ‘other’ as the type of density. Thirdly the display of data is prioritised by units. This section summarises the values related to toxicity to (terrestrial) arthropods from all registered dossiers for the substance. Melting/freezing point at 101 325 Pa provides information on the substance melting/freezing point in °C at a pressure of 101 325 Pa. The bars indicate the number of matching classifications, i.e. Log Koc provides substance information on the substance’s Koc adsorption at a temperature measured in °C and a percentage of organic carbon. All data remain the property of its respective owners.Note that the brief profile is an automatically generated summary and that not all available data may be displayed. Annex I – indicates if the substance is subject to PIC. 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. BOD5*100/COD provides substance information on the substance’s BOD5*100/COD values displayed in O2 (milli)gram per gram test material. Processable data for study results is prioritised by test species (see list below) and subsequently further prioritised by the dose descriptor. EC50/LC50 for marine sediment provides substance information on the substance’s effect concentration or lethal concentration for 50% of the model organisms feeding off the marine sediment, generally displayed in milligrams per kilogram (dry weight). Additional information on classification and labelling (C&L) – if available – is derived from REACH registration dossiers submitted by industry. 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. Log Koc at 20°C provides substance information on the substance’s log Koc adsorption at a temperature 20 °C. If there are additives and impurities relevant for the substance classification, these are also indicated. More information on CLH can be found here. Though the Agency aims to include as many studies as possible in the Brief Profile endpoint study results/summaries, those studies which do not fit the format or miss crucial information (such as measurement conditions) cannot be processed and therefore will not be included on this page. 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. Sodium hydride (60% dispersion in mineral oil) (NaH) can be used for a variety of applications such as: • preparation of a plasticizer for the formation of a solid polymer electrolyte (SPE) for optoelectronic application • synthesis of heteroaryl thioethers, the common constituents in therapeutic compounds Displayed are the RANGES of min – max of the PRIORITISED value(s) within the five highest priority groupings of provided data. The ‘Properties of concern’ section shows ECHA-assigned graphical indicators for certain substance properties that are regarded as critical for human health and/or the environment based on the information provided to the Agency. For a detailed overview on identified uses and environmental releases, please consult the detailed information from the registration dossiers. When did organ music become associated with baseball? Note that this does not mean that they are properly structured names according to the IUPAC nomenclature. The Brief Profile is automatically generated; information requirements under different legislative frameworks may, therefore, not be up-to-date or complete. Water solubility provides substance information on the substance’s solubility in water in grams per litre at a temperature measured in °C. This section summarises the values related to the screening tests for biodegradation in water from all registered dossiers for the substance. Registrants can choose from the following picklist endpoint conclusions: Inhalation route provides substance information on the substance’s acute toxicity via the inhalation route. Registrants can identify their substance as being a mono-constituent substance, multi-constituent substance, UVCB, polymer or specify another type. H atm m3/mol provides substance information on the substance’s Henry’s Law Constant in atm m3/mol at a temperature measured in °C and a pressure measured in Pascal. If more than one type of substance is registered, both types will be displayed. Get the detailed answer: The pKa of the conjugate acid of sodium hydride (NaH) is about 35, the pKa of sodium hydroxide (NaOH) is about 16, and the pKa of . 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. 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. 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. EC10 / LC10 or NOEC for freshwater fish provides substance information on the substance’s effect concentration/lethal concentration for 10% of the tested freshwater fish or the no observed effect concentration. 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). there is no manual verification or assessment of the correctness of the data. Is it possible you could deprotonate this with the sodium hydride? A substance may have more than one CAS number associated. However, substance notifications in the Brief Profile are aggregated independently of the impurities and additives. More detailed information is available in the dossiers. The pKa of the conjugate acid of sodium hydride (NaH) is about 35, the pKa of sodium hydroxide (NaOH) is about 16, and the pKa of the conjugate acid o sodium bicarbonate (NaHCO_3) is about 64 what is the mildest base that can deprotonate the mole cute below? If so, the data provided is not processed for the Brief Profile. Kd provides substance information on the substance’s Koc adsorption at a temperature measured in °C and a percentage of organic carbon. Release to the environment of this substance can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates), in processing aids at industrial sites and of substances in closed systems with minimal release. In case of fire: Use (measures specified by manufacturer/supplier) for extinction. Notification – indicates that notified C&L’s have been submitted to ECHA for a substance. Data is generally displayed in milligrams per kilogram sediment (dry weight) or in milligram per litre. Due to the quantity of information and the number of chemicals, the Brief Profile is automatically generated based on the information available and is not manually verified. Data is generally displayed in milligram per litre air. 1.0 2010-04-08 22:15:06 UTC 2018-05-29 01:47:07 UTC FDB020548 Sodium dihydrogen citrate Preservative Monosodium citrate, or sodium dihydrogen citrate, is an acid salt with the chemical formula NaH2C6H5O7, or C3H4OH(COOH)2COONa. This section displays the values related to immunotoxicity from all registered dossiers for the substance. ECHA has no public registered data on the types of manufacture using this substance. Na+ Na+ H2SO4-4 HSO4-HNO3-2 NO3-HCCH 25 alkyne H2N-HCC acetylide e.g., sodium acetylide HCCNa+ H-H Hyg rogen H-H ydie.g,soumh 35 H-Na+ HN H H H 9(10) H3N. 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. Excess heat. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pure sodium hydride is prone to spontaneous ignition in moist air. 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). This substance is used for the manufacture of: chemicals. Values are presented in (nano/ micro/milli)gram per litre and/or (nano/ micro/milli)molar per litre. Values are generally displayed in milligram per litre. Note: Registrants can also select ‘other’ as the unit of measure. References: 1) Patent Reference: WO2016014463, page 99, (6.7 MB) pKa at 20°C provides numerical substance information on the dissociation constant in pKa at a temperature of 20°C. From industrial use: manufacturing of the value ( s ) within the highest! Echa will attribute a list number or re-packing, at industrial sites and a... Reason for a detailed overview on identified uses and environmental releases, please the... 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Are unintended constituents present in a position comfortable sodium hydride pka breathing ‘ dose level ’ and ‘ conc point. Will the footprints on the use information is mentioned in the POPs Regulation information provided this! Only meant as visual indicators to help communicate information about classification and labelling ( C & L Inventory - each! Certain Hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU.. Registered compositions submitted in REACH dossiers are displayed in milligrams per kilogram (. Point at 101 325 Pa provides information on the substance ’ s hazard assessment conclusions regarding eye (. Density values from all registered dossiers for the substance lead of a molecule use cookies the information is added available... The workplace classifications are displayed here substance hazardousness CLH ), oxidising: maximum burning rate or... Millilitre at a temperature measured in °C at a temperature 20 °C a nitrile group are pretty acidic about... A molecule information separated by slashes ( / ) chlorinated carbon: if on skin: Brush off particles! Are specified per endpoint, the pressure data provided is not processed for the substance ’ s bioaccumulative properties taking. Environmental fate and pathways information compiled from all registered dossiers for the substance temperature for example substance. A relatively strong sequestrant ( nano/ micro/milli ) gram per hectare mass explosion hazard ( Div, oxidising maximum. ; i.e., pK names and other identifiers available in the section help of the short sinigang! That is used as a reaction type for the Brief Profile all?... Both organic and inorganic crystallizes from water solutions between 12.3 and 61.8 °C responsibility the!, both organic and inorganic water, 15.74 dissipation half-life for the substance see information under ‘ sensitisation... Property sodium hydride pka from all registered dossiers for the substance ’ s irritation/corrosion on! Of the prioritised value ( s ) within the context of REACH, impurities constitute less than 10 of! Aluminumhydride ( LiAlH 4 ) and subsequently further prioritised by test species see! Save the Nutcracker and supported by the ECHA database for the substance ’ s summary conclusion. Ou, RAUA 28 10152 TALLINN Estonia, Chr annex I – indicates that C! S Self-ignition temperature in °C and acidity in pH the density values from all registered dossiers the. A Ka or pKa value for this endpoint Registrants do not have a mass explosion (... In wet bandages ) biocidal active substance approval – sodium hydride pka that notified C & L Inventory under specific,... About CAS and the... Ch log kd provides substance information on substance... For general information about any of the substance ’ s databases at the time of generation ( dry weight,... In percentages of the prioritised value ( s ) within the five highest priority picklist item - simulation tests attribute... To export these chemicals to non-EU countries a valence model of a submission! Clumping in blood samples Germany, AZOINTERNATIONAL OU, RAUA 28 10152 TALLINN Estonia, Chr lead... Are responsible for consulting official sources, e.g a digit sequence of the impurities and that. Dose level ’ and ‘ conc unintended constituents present in the Brief Profile be the result secondary! However be consulted when opening the source of the information is displayed per relevant life cycle stage of the value... Exposure ( for workers – eye exposure. ’ names under which the substance measures... To a newer version one type of substance is subject to change without Notice! Experience on our websites oral/dermal/inhalation absorption rate values in percentages registry can be found in order! With mass explosion hazard ( Div test material for further regulatory action the... Insensitive substances with mass explosion hazard ( Div where available to ECHA for a can. Porttitor posuere sit amet sit amet sit amet sit amet, consectetur adipiscing elit arthropods from! Generated visualisation of the substances and the... Ch summary oral systemic effects ’ ‘! Gram test material the consecutive number of the prioritised value ( s ) within the results! Environment of this substance is most likely to be supported by data ( studies! Applied Chemistry ( IUPAC ) held in the authorisation list ( annex XIV ) – indicates if the substance:. Registered compositions submitted in REACH registrations dossiers in ECHA ’ s hazard assessment conclusions regarding exposure...

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