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2-甲基丙烯醛

2-甲基丙烯醛用途

用于共聚物和树脂制造，是甲基丙燃酸的生产原料和热塑性塑料单体原料。

2-甲基丙烯醛名称

[ CAS 号 ]:
78-85-3

[ 中文名 ]:
2-甲基丙烯醛

[ 英文名 ]:
Methylpropenal

[中文别名 ]:

[英文别名 ]:

α-Methylacrolein
Metharolein
2-methyl propenal
2-methylprop-2-enal
METHACROLEIN
Methylacrolein
Methacraldehyde
Methakrylaldehyd
2-Methyl-propenal
Methacrylaldehyde

2-甲基丙烯醛物理化学性质

[ 密度 ]:
0.8±0.1 g/cm3

[ 沸点 ]:
68.0±0.0 °C at 760 mmHg

[ 熔点 ]:
-81 °C

[ 分子式 ]:
C₄H₆O

[ 分子量 ]:
70.090

[ 闪点 ]:
-15.0±0.0 °C

[ 精确质量 ]:
70.041862

[ PSA ]:
17.07000

[ LogP ]:
0.54

[ 外观性状 ]:
无色至淡黄色液体

[ 蒸汽密度 ]:
2.4 (vs air)

[ 蒸汽压 ]:
142.3±0.1 mmHg at 25°C

[ 折射率 ]:
1.385

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、酸类分开存放,不宜久储,以防聚合

[ 稳定性 ]:
Stable. Incompatible with strong bases, strong oxidising agents, strong reducing agents. Light and air-sensitive. Hazardous polymerisation may occur.

[ 水溶解性 ]:
6 g/100 mL (20 ºC)

2-甲基丙烯醛MSDS

2-甲基丙烯醛毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OZ2625000

CHEMICAL NAME :: Methacrylaldehyde

CAS REGISTRY NUMBER :: 78-85-3

BEILSTEIN REFERENCE NO. :: 1209258

LAST UPDATED :: 199701

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: C4-H6-O

MOLECULAR WEIGHT :: 70.10

WISWESSER LINE NOTATION :: VHY1&U1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 140 mg/kg

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

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 125 ppm/4H

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

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 430 uL/kg

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

MUTATION DATA

TYPE OF TEST :: Mutation in microorganisms

TEST SYSTEM :: Bacteria - Salmonella typhimurium

DOSE/DURATION :: 500 umol/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 93,305,1982

2-甲基丙烯醛安全信息

[ 符号 ]:

GHS02, GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H225-H301 + H311-H314

[ 警示性声明 ]:
P210-P280-P301 + P310-P305 + P351 + P338-P310

[ 个人防护装备 ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
F:Flammable;T:Toxic;

[ 风险声明 (欧洲) ]:
R11;R24/25;R26;R34

[ 安全声明 (欧洲) ]:
S16-S26-S36/37/39-S45-S28A

[ 危险品运输编码 ]:
UN 2396 3/PG 2

[ WGK德国 ]:
3

[ RTECS号 ]:
OZ2625000

[ 包装等级 ]:
II

[ 危险类别 ]:
3

2-甲基丙烯醛合成路线

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2-甲基丙烯醛制备

1.制备异丁烯醛的方法，将异丁烯和叔丁醇中的至少一种，用含分子氧的气体在氧化催化剂组合物Ｍｏ₁₂Bi_aCe_bK_cFe_dA_eB_fO_g存在下进行气相催化氧化，Ａ是指单独的钴，或者镁与钴的原子比不大于０．７的钴和镁的混合物，Ｂ是指铷、铯或其混合物，并且a、b、c、d、e、f和g分别是相应于钼的１２个原子的铋、铈、钾、铁、Ａ、Ｂ和氧的原子比。通过本发明的方法，采用一种氧化催化剂组合物，可以稳定地生产高产量的异丁烯醛，这种氧化催化剂组合物具有比较简单的结合组成，并因此可以简单地制备，而且它不仅具有由于优良的热稳定性和抗还原性而延长了的催化剂寿命，而且具有对异丁烯醛优良的选择性，其中这种催化剂组合物以特定量和特定相对比例含有铋、铈、铁和钾，而不包括那些产生环境污染和毒害问题的成分，制备原料也不必采用在水中溶解度低的化合物，如钨、锑和铌化合物，它们通常用于获得所需的催化性能，但是其使用由于难以获得均相催化剂组合物而是不利的。

2. 烟草：FC，40。

2-甲基丙烯醛文献

Formation of dimethylketene and methacrolein by reaction of the CH radical with acetone.

Phys. Chem. Chem. Phys. 15(11) , 4049-58, (2013)

The reaction of the methylidyne radical (CH) with acetone ((CH(3))(2)C[double bond, length as m-dash]O) is studied at room temperature and at a pressure of 4 Torr (533.3 Pa) using a multiplexed photoi...

Mechanism of the hydroxyl radical oxidation of methacryloyl peroxynitrate (MPAN) and its pathway toward secondary organic aerosol formation in the atmosphere.

Phys. Chem. Chem. Phys. 17 , 17914-26, (2015)

Methacryloyl peroxynitrate (MPAN), the acyl peroxynitrate of methacrolein, has been suggested to be an important secondary organic aerosol (SOA) precursor from isoprene oxidation. Yet, the mechanism b...

Analysis of volatile organic compounds liberated and metabolised by human umbilical vein endothelial cells (HUVEC) in vitro.

Cell Biochem. Biophys. 71(1) , 323-9, (2015)

Gas chromatography with mass spectrometric detection combined with head-space needle trap extraction as the pre-concentration technique was applied to identify and quantify volatile organic compounds ...

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