나트륨 에톡시드
Sodium ethoxide
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기본 정보
- CAS
141-52-6- 표준 SMILES
CC[O-].[Na+]- InChIKey
QDRKDTQENPPHOJ-UHFFFAOYSA-N- 분자식
- C2H5NaO
- 평균 분자량
- 68.05 g/mol
- 단동위원소 질량
- 68.02380906
이름 및 식별자
- 우선 이름
- Sodium ethoxide
- IUPAC
- sodium ethanolate
- 현지명
- 나트륨 에톡시드
- 영어명
- Sodium ethoxide
- 분자식
- C2H5NaO
- 분자량
- 68.05
이름 및 동의어
Sodium ethoxide141-52-6Sodium ethylateSODIUM ETHANOLATEEthoxysodiumCaustic alcoholEthanol, sodium saltEthyl alcohol, sodium salt1I9504387JDTXSID3027089CHEBI:52096RefChem:183880
이름 더 보기
나트륨에톡시드나트륨에톡시드나트륨 에탄올산EtONaSodium ethoxide solutionNE-21Sodium ethoxide-ethanol solutionSODIUM ETHYLATE SOLUTION, ~21% IN ETHYL ALCOHOL, DENAT.JACS-141-52-6
DTXCID707089205-487-5sodiumethoxidesodium;ethanolateNaOEtC2H5NaOMFCD00012417Sodium Ethoxide (>85%)
데이터베이스 식별자
- CAS
141-52-6- PubChem CID
- 2723922
- DTXSID
DTXSID3027089- ChEBI
CHEBI:52096- UNII
- 1I9504387J
- EC Number
- 205-487-5
- Nikkaji
- J91.259J
물성
구조 계산 물성보충 중
- 극성 표면적
- 23.1 Ų
- 수소 결합 공여자 수
- 0
- 수소 결합 수용자 수
- 1
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 4
- 형식 전하
- 0
- 복잡도
- 6
실험 및 물리화학적 성질
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
물리화학적 성질
- 녹는점
- 260 °C · 260 °C
- 끓는 점
- 91 °C · 91°C
- 밀도
- 0.868 g/mL · 0.868 g/mL at 25 °C
- 증기 밀도
- 1.6 · 1.6 (vs air)
- 증기압
- 0.1 mm · <0.1 mm Hg ( 20 °C)
- 굴절률
- 20 · n20/D 1.386
- 인화점
- 48 °F · 48 °F
- 저장 조건
- 15 °C · Store at +15°C to +25°C.
안전 및 규제
안전 정보는 참고용이며, 공급업체의 물질안전보건자료(SDS), 관련 법규 및 전문가 평가를 대체하지 않습니다.
GHS 분류
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
유해성 정보
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.
Hazard Classes and Categories
화학 및 산업
용도 및 제조
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.
응용 분야
용도Sodium ethoxide is used in organic synthesis for condensation reactions. It also is a catalyst in many organic reactions.
일반 설명Sodium ethoxide is an alkoxide salt mainly used as a strong base in organic reactions such as deprotonation, dehydration and dehalogenation.
제조 방법
Sodium 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
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