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Dinatriumhydrogencitrat
Sodium 2-(carboxymethyl)-2-hydroxysuccinate · citralka · alkacitron · natriumcitricum · DISODIUM CITRATE · SODIUMACIDCITRATE · sodiumcitrate,acid · DisodiuM Citrate Disodium Chromtropate
Identifikatoren & physikalische Daten
| CAS No. | 144-33-2 |
|---|---|
| Summenformel | C6H6Na2O7 |
| Durchschnittliche Molmasse | 236,09 g/mol |
| Monoisotopische Masse | 235,99089109 g/mol |
| SMILES | O=C([O-])CC(O)(CC(=O)[O-])C(=O)O.[Na+].[Na+] |
| InChIKey | CEYULKASIQJZGP-UHFFFAOYSA-L |
| PubChem CID | 8950 |
| EC No. | 205-623-3 |
| DTXSID | DTXSID50889423 |
| Lokaler Name | Dinatriumhydrogencitrat |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 138 |
|---|---|
| H-Brücken-Donoren | 2 |
| H-Brücken-Akzeptoren | 7 |
| Frei drehbare Bindungen | 3 |
| Schwere Atome | 15 |
| Formalladung | 0 |
| Komplexität | 216 |
| Stoffklassen | Metals -> Organic Acids, Metal Salts |
| pH | Between 4,9 and 5,2 (1 % aqueous solution)5.48(1 mM solution)5.28(10 mM solution)4.88(100 mM solution)3.72(1000 mM solution) |
| Lebensmittelzusatzstoffe | STABILIZER OR THICKENER -> FDA Substance added to food |
| Physical Description | Crystalline white powder or colourless crystalsWhite solid[Merck Index] White powder or fine crystalsOdorless[Merck Eurolab MSDS] |
| Other Experimental Properties | WHITE POWDERSALINE TASTEPH OF 3% WT/VOL SOLN IN WATER: 4.9-5.21 G DISSOLVES IN LESS THAN 2 ML WATER /SESQUIHYDRATE/ |
| Schmelzpunkt | 240°C |
| Dichte | 1.858[at 20℃] |
| Dampfdruck | 0Pa at 20℃ |
| Lagerbedingungen | Store at room temperature, keep dry and cool |
| Löslichkeit | Freely soluble in waterpractically insoluble in ethanol (96%).263.1 g/l at 20 °C |
| Aggregatzustand | Solid |
| Farbe | White crystalline |
| Geruch | Odorless |
| Merck | 2326 |
| LogP (Verteilungskoeffizient) | -1.624 at 20℃ |
| CAS Datenbank | 144-33-2(CAS DataBase Reference) |
| EPA chemische Informationen | 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, disodium salt (144-33-2) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 100% (116 of 116) of all reports.Not ClassifiedAggregated GHS information provided per 116 reports by companies from 1 notifications to the ECHA C&L Inventory. |
|---|---|
| Regulatorische Informationen | Chemical: 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, disodium salt1,2,3-Propanetricarboxylic acid, 2-hydroxy-, sodium salt (1:2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, sodium salt (1:2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)REACH registered substance: Disodium hydrogen citrate (EC: 205-623-3)Disodium citrate: Does not have an individual approval but may be used under an appropriate group standard |
| Weitere Sicherheitsinformationen | IMAP assessments - 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, disodium salt: Human health tier I assessment |
| Gefahrenübersicht | Causes convulsions and cyanosis in intravenous and intraperitoneal lethal-dose studies of mice and rats[RTECS] An eye and respiratory tract irritant[Merck Eurolab MSDS] See Citric acid. |
| Hazard Classes and Categories | Not Classified |
| TSCA-Inventar-Status | TSCA listed |
| RTECS-Nr. | GE7580000 |
| Toxizität | LD50 in mice, rats (mmol/kg): 7.5, 7.3 i.p. (Gruber, Halbeisen) |
| Gefahrstoffdaten | 144-33-2(Hazardous Substances Data) |
Anwendungen & Verwendung
Beschreibung
Disodium citrate, or disodium hydrogen citrate, is a sodium acid salt of citric acid (sodium citrate) with the chemical formula Na2HC6H5O7, or Na2H(C3H5O(COO)3). It is used as an antioxidant in food as well as to improve the effects of other antioxidants. It is also used as an acidity regulator and sequestrant.Typical products include gelatin, jam, sweets, ice cream, carbonated beverages, milk powder, wine, and processed cheeses.
Verwenden
Anticoagulant.