Natriumethanolat
Sodium ethoxide
Daten werden ergänzt – lade die Seite später neu, um den aktuellen Stand zu sehen
Grundinformationen
- CAS
141-52-6- Standard-SMILES
CC[O-].[Na+]- InChIKey
QDRKDTQENPPHOJ-UHFFFAOYSA-N- Summenformel
- C2H5NaO
- Durchschnittliche Molmasse
- 68,05 g/mol
- Monoisotopische Masse
- 68,02380906
Namen und Bezeichner
- Bevorzugter Name
- Sodium ethoxide
- IUPAC
- sodium ethanolate
- Lokaler Name
- Natriumethanolat
- Englischer Name
- Sodium ethoxide
- Summenformel
- C2H5NaO
- Molmasse
- 68.05
Namen und Synonyme
Sodium ethoxide141-52-6Sodium ethylateSODIUM ETHANOLATEEthoxysodiumCaustic alcoholEthanol, sodium saltEthyl alcohol, sodium salt1I9504387JDTXSID3027089CHEBI:52096RefChem:183880
Weitere Namen anzeigen
EtONaSodium ethoxide solutionNE-21Sodium ethoxide-ethanol solutionSODIUM ETHYLATE SOLUTION, ~21% IN ETHYL ALCOHOL, DENAT.JACS-141-52-6
DTXCID707089205-487-5sodiumethoxidesodium;ethanolateNaOEtC2H5NaOMFCD00012417Sodium Ethoxide (>85%)
Datenbank-Bezeichner
- CAS
141-52-6- PubChem CID
- 2723922
- DTXSID
DTXSID3027089- ChEBI
CHEBI:52096- UNII
- 1I9504387J
- EC Number
- 205-487-5
- Nikkaji
- J91.259J
Eigenschaften
Berechnete StruktureigenschaftenWird ergänzt
- Polarare Oberfläche (TPSA)
- 23,1 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 1
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 4
- Formalladung
- 0
- Komplexität
- 6
Experimentelle und physikochemische Eigenschaften
Color/Form
WHITE OR YELLOWISH POWDER
WHITE POWDER SOMETIMES HAVING BROWNISH TINGE
SolubilitySOL IN ABSOLUTE ALCOHOL
Physical Description
White or yellowish hygroscopic solid; Decomposed by air and water; [Merck Index] Off-white powder with an odor of alcohol; [MSDSonline]
WHITE-TO-YELLOW POWDER.
Stability/Shelf LifeDECOMP ON EXPOSURE TO AIR & BECOMES DARKER ON KEEPING
Other Experimental PropertiesDECOMP BY WATER INTO SODIUM HYDROXIDE & ALC; HYGROSCOPIC
Physikochemische Eigenschaften
- Schmelzpunkt
- 260 °C · 260 °C
- Siedepunkt
- 91 °C · 91°C
- Dichte
- 0.868 g/mL · 0.868 g/mL at 25 °C
- Dampfdichte
- 1.6 · 1.6 (vs air)
- Dampfdruck
- 0.1 mm · <0.1 mm Hg ( 20 °C)
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Danger
H251: Self-heating; may catch fire [Danger Self-heating substances and mixtures]；H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P235, P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P407, P410, P413, P420, and P501 (click each P-code to see the statement)
Danger
Gefahrenhinweise
Regulatory Information
Chemical: Ethanol, sodium salt
Status: Active Update: 09-11-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/5912；Status: Active Update: 27-01-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/26638
Sodium ethoxide: HSNO Approval: HSR004687 Approved with controls
Fire HazardsHighly flammable. Risk of fire and explosion on contact with water.
Hazards Summary
Reacts violently with water posing fire and explosion risk; Corrosive; [ICSC] Highly flammable; Reacts violently with water; May causes burns; [eChemPortal: ESIS] Reacts violently with water; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline]
EC ClassificationSymbol: F, C; R: 11-14-34; S: (1/2)-8-16-26-43-45
Chemical DangersDecomposes on burning. This produces toxic fumes. Reacts violently with water. This generates fire and explosion hazard.
Packaging and LabellingAirtight.
Chemie und Industrie
Verwendung und Herstellung
Uses
Used in hair straighteners and to make other organic chemicals; [HSDB]
Dressing Hair [Category: Other]
ORGANIC SYNTHESIS
IN HAIR STRAIGHTENERS
U.S. Exports(1986) No Data
U.S. Imports(1986) No Data
U.S. Production(1986) No Data
Methods of ManufacturingBY CAREFULLY ADDING SMALL AMT OF SODIUM TO ABSOLUTE ALC KEPT @ TEMP OF 10 °C, HEATING CAREFULLY TO 37.7 °C, AGAIN CAREFULLY ADDING SODIUM, COOLING TO 10 °C, & ADDING SAME QUANTITY OF ABSOLUTE ALC AS WAS USED ORIGINALLY.
General Manufacturing Information
Ethanol, sodium salt (1:1): ACTIVE
AN ADDITIVE IN SOLID HAIR STRAIGHTENING COMPD.
Anwendungen
VerwendenSodium ethoxide is used in organic synthesis for condensation reactions. It also is a catalyst in many organic reactions.
Darstellung
synthetischeSodium ethoxide is prepared by reacting sodium with absolute ethanol: 2Na + 2C2H5OH → 2C2H5ONa + H2 Sodium in small quantities is added to absolute alcohol at 10°C. The temperature is raised to warming (to about 38°C). The mixture is cooled again and sodium and absolute alcohol are added gradually followed by careful warming. The process is repeated to obtain a sufficient yield of the p
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
Zugehörige Reaktionen
4.604
Notizen zur Verbindung
Wird geladen…