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말론산 디에틸

말론산 디에틸
말론산 디에틸 구조식 이미지
카스 번호:
105-53-3
한글명:
말론산 디에틸
동의어(한글):
디에틸말론산;말론산디에틸;말론산에틸;디에틸말론산
상품명:
Diethyl malonate
동의어(영문):
DEM;FEMA 2375;MALONIC ESTER;ETHYL MALONATE;Diethyl malonat;DIETHYL MALONATE;Diethyi malonate;AKOS BBS-00004262;DICARBETHOXYMETHANE;Ethyl propanedioate
CBNumber:
CB8852658
분자식:
C7H12O4
포뮬러 무게:
160.17
MOL 파일:
105-53-3.mol

말론산 디에틸 속성

녹는점
-50 °C
끓는 점
199 °C(lit.)
밀도
1.055 g/mL at 25 °C(lit.)
증기 밀도
5.52 (vs air)
증기압
1 mm Hg ( 40 °C)
굴절률
n20/D 1.413(lit.)
FEMA
2375 | DIETHYL MALONATE
인화점
212 °F
저장 조건
Store below +30°C.
용해도
20.8g/l (External MSDS)
산도 계수 (pKa)
13.5(at 25℃)
물리적 상태
Liquid
폭발한계
0.8-12.8%(V)
수용성
Miscible with ethyl alcohol, ether, chloroform and benzene. Slightly miscible with water.
Merck
14,3823
JECFA Number
614
BRN
774687
안정성
Stable. Combustible. Incompatible with strong oxidizing agents,
InChIKey
IYXGSMUGOJNHAZ-UHFFFAOYSA-N
CAS 데이터베이스
105-53-3(CAS DataBase Reference)
NIST
Propanedioic acid, diethyl ester(105-53-3)
EPA
Propanedioic acid, diethyl ester(105-53-3)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi
위험 카페고리 넘버 36/37/38-36
안전지침서 24/25-26
WGK 독일 1
RTECS 번호 OO0700000
자연 발화 온도 435 °C DIN 51794
위험 참고 사항 Irritant
TSCA Yes
HS 번호 29171910
독성 LD50 orally in Rabbit: 15720 mg/kg LD50 dermal Rabbit > 16000 mg/kg
그림문자(GHS):
신호 어:
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H227 가연성 액체 인화성 액체 구분 4 경고 P210, P280, P370+P378, P403+P235,P501
예방조치문구:
P403+P235 환기가 잘 되는 곳에 보관하고 저온으로 유지하시오.

말론산 디에틸 MSDS


Ethyl propanedioate

말론산 디에틸 C화학적 특성, 용도, 생산

화학적 성질

colourless liquid

화학적 성질

Diethyl malonate has a faint, pleasant, aromatic odor.

출처

Reported found in pineapple, bilberry, Cape gooseberry, cognac, malt whiskey, apple brandy, grape brandy, port, cider, sherry and red, white, strawberry and bilberry wines.

용도

Diethyl Malonate occurs naturally in grapes and strawberries. It is used in the preparation of barbiturates, artificial flavourings, vitamin B1, and vitamin B6 as well as in perfumes.

용도

manufacture of barbiturates.

제조 방법

Reacting chloroacetic acid to cyanoacetic acid using sodium cyanide and subsequent saponification; malonic acid is finally esterified by azeotropic distillation with ethanol in benzene

Taste threshold values

Taste characteristics at 50 ppm: sweet and fruity with apple and pineapple nuances.

Safety Profile

Mildly toxic by ingestion. A skin irritant. Combustible liquid when exposed to heat or flame; can react with oxidizing materials. To fight fire, use water to blanket fire, foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS.

Purification Methods

If too impure (IR, NMR) the ester (250g) is heated on a steam bath for 36hours with absolute EtOH (125mL) and conc H2SO4 (75mL), then fractionally distilled under reduced pressure. Otherwise fractionally distil it under reduced pressure and collect the steady boiling middle fraction. [Beilstein 2 IV 1881.]

말론산 디에틸 준비 용품 및 원자재

원자재

준비 용품


말론산 디에틸 공급 업체

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