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乙缩醛二甲醇

乙缩醛二甲醇用途

【用途一】
该品在有机合成中可用于保护醛基，也用作工业溶剂及增塑剂。2体积该品与1体积氯仿的混合物为Mering混合物。
【用途二】
该品在有机合成中可用于保护醛基。

乙缩醛二甲醇名称

[ CAS 号 ]:
534-15-6

[ 中文名 ]:
二甲氧基乙烷

[ 英文名 ]:
Dimethyl Acetal

[中文别名 ]:

[英文别名 ]:

Ethylidene Dimethyl Ether
1,1'-Dimethoxyetiane
EINECS 208-589-8
Acetaldehyde Dimethyl Acetal
acetaldehyde diethyl acetal
dimethylaldehyde
(CH3O)2CHCH3
acetaldehyde dimethylacetate
CH3CH(OCH3)2
1,1-dimethoxy-ethan

乙缩醛二甲醇物理化学性质

[ 密度 ]:
0.852 g/mL at 25 °C(lit.)

[ 沸点 ]:
64 °C(lit.)

[ 熔点 ]:
-113 °C

[ 分子式 ]:
C₄H₁₀O₂

[ 分子量 ]:
90.12100

[ 闪点 ]:
1 °F

[ 精确质量 ]:
90.06810

[ PSA ]:
18.46000

[ LogP ]:
0.62520

[ 外观性状 ]:
液体;Colorless to Almost colorless clear liquid

[ 蒸汽密度 ]:
3.1 (vs air)

[ 折射率 ]:
n20/D 1.367(lit.)

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、酸类分开存放

[ 水溶解性 ]:
可溶

乙缩醛二甲醇MSDS

乙缩醛二甲醇毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: AB2825000

CHEMICAL NAME :: Acetaldehyde, dimethyl acetal

CAS REGISTRY NUMBER :: 534-15-6

BEILSTEIN REFERENCE NO. :: 1697039

LAST UPDATED :: 199806

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C4-H10-O2

MOLECULAR WEIGHT :: 90.14

WISWESSER LINE NOTATION :: 1OY1&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 31,60,1949

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3000 ppm/4H

TOXIC EFFECTS :: Behavioral - general anesthetic

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 12,623,1955

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 4507 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 29,730,1932

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 20 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 31,60,1949

乙缩醛二甲醇安全信息

[ 符号 ]:

GHS02

[ 信号词 ]:
Danger

[ 危害声明 ]:
H225

[ 警示性声明 ]:
P210

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US)

[ 危害码 (欧洲) ]:
F:Flammable

[ 风险声明 (欧洲) ]:
R11

[ 安全声明 (欧洲) ]:
S9-S16-S33

[ 危险品运输编码 ]:
UN 2377 3/PG 2

[ WGK德国 ]:
2

[ RTECS号 ]:
AB2825000

[ 包装等级 ]:
II

[ 危险类别 ]:
3

[ 海关编码 ]:
2911000000

乙缩醛二甲醇合成路线

乙缩醛二甲醇上下游产品

乙缩醛二甲醇上游产品

乙缩醛二甲醇下游产品

乙缩醛二甲醇制备

由甲醇与乙醛在浓硫酸作用下反应而得。也可由甲醇与乙炔反应，或甲醇与乙烯反应制得乙醛缩二甲醇。

乙缩醛二甲醇海关

[ 海关编码 ]: 2911000000

[ 中文概述 ]:
2911000000 缩醛及半缩醛，不论是否含其他含氧基，及其卤化，磺化，硝化和亚硝化衍生物。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:5.5%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2911000000 acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

乙缩醛二甲醇文献

One-pot enol silane formation-Mukaiyama aldol-type addition to dimethyl acetals mediated by TMSOTf.

J. Org. Chem. 73(8) , 3299-302, (2008)

Various ketones, esters, amides, and thioesters add in high yield to dimethyl acetals in the presence of silyl trifluoromethanesulfonates and an amine base. Acetals derived from aryl, unsaturated, and...

An expeditious synthesis of 4-hydroxy-2E-nonenal (4-HNE), its dimethyl acetal and of related compounds.

Chem. Phys. Lipids 150(2) , 239-43, (2007)

The facile one step synthesis of 4-hydroxy-2E-nonenal and its dimethyl acetal via a cross-metathesis reaction between commercially available octen-3-ol and acrolein or its dimethyl acetal is reported....

Matrix isolation infrared and ab initio study of the conformations of 2,2-dimethoxypropane.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 59(7) , 1497-507, (2003)

Conformations of 2,2-dimethoxypropane (DMP) were studied using matrix isolation infrared spectroscopy. An effusive source maintained at different temperatures (298, 388 and 430 K) was used to deposit ...

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