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Cas Database

79-41-4

79-41-4

Identification

  • Product Name:2-Propenoicacid, 2-methyl-

  • CAS Number: 79-41-4

  • EINECS:201-204-4

  • Molecular Weight:86.0904

  • Molecular Formula: C4H6O2

  • HS Code:2916130010

  • Mol File:79-41-4.mol

Synonyms:Methacrylicacid (8CI);2-Methyl-2-propenoic acid;2-Methylacrylic acid;Acryester MAA;GE110;Light Ester A;Loctite 3298;MAA;NSC 7393;NorsocrylMAA;a-Methacrylic acid;a-Methylacrylic acid;α-Methylacrylic acid;

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Safety information and MSDS view more

  • Pictogram(s):CorrosiveC

  • Hazard Codes: C:Corrosive;

  • Signal Word:Danger

  • Hazard Statement:H302 Harmful if swallowedH312 Harmful in contact with skin H314 Causes severe skin burns and eye damage

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled Fresh air, rest. Half-upright position. Refer for medical attention. In case of skin contact First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. In case of eye contact First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. If swallowed Rinse mouth. Rest. Refer for medical attention . INHALATION: Severe irritation to respiratory tract. EYES: Short contact can cause severe damage. SKIN: Causes severe irritation and burns. Ingestion: High hazard - may cause death or permanent injury on short exposure to small quantities. OTHER: May affect blood pressure temporarily. (USCG, 1999) Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Organic acids and related compounds/

  • Fire-fighting measures: Suitable extinguishing media Use dry chemical, carbon dioxide, or alcohol foam extinguishers. Vapors are heavier than air and will collect in low areas. Vapors may travel long distances to ignition sources and flashback. Vapors in confined area may explode in fire. Storage containers and parts of containers may rocket great distances, in many directions. If materials or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Notify local health and fire officials and pollution control agencies. From a secure, explosion-proof location, use water spray to cool exposed containers. If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors, or shows any signs of deforming), withdraw immediately to a secure position. If employees are expected to fight fires, they must be trained and equipped. Special Hazards of Combustion Products: Vapor forms explosive mixtures with air. Thermal decomposition produces carbon monoxide and carbon dioxide. Behavior in Fire: Vapors form explosive mixtures with air. Sealed containers may rupture explosively at elevated temperatures (polymerization). (USCG, 1999) Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Collect leaking and spilled liquid in sealable plastic containers as far as possible. Cautiously neutralize remainder with aqueous sodium carbonate or lime. Then wash away with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents. Personal protection: complete protective clothing including self-contained breathing apparatus. Evacuate and restrict persons not wearing protective equipment from area of spill or leak until cleanup is complete. Remove all ignition sources. Establish forced ventilation to keep levels below explosive limit. Absorb liquids in vermiculite, dry sand, earth, or a similar non-organic materials and deposit in sealed containers. Using caution, neutralize remainder with aqueous sodium carbonate or lime. Then wash away with plenty of water. Keep this chemical out of a confined space, such as a sewer, because of the possibility of an explosion, unless the sewer is designed to prevent the build-up of explosive concentrations. It may be necessary to contain and dispose of this chemical as a hazardous waste. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Contact your Department of Environmental Protection or your regional office of the federal EPA for specific recommendations. If employees are required to clean-up spills, they must be properly trained and equipped.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Separated from strong oxidants and food and feedstuffs. Cool. Keep in the dark. Keep in a well-ventilated room. Store only if stabilized.Prior to working with this chemical you should be trained on its proper handling and storage. Before entering confined space where this chemical may be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containers in a cool, well ventilated area away from oxidizers (such as perchlorates, peroxides, permanganates, chlorates and nitrates). Methacrylic acid should be stored at temperatures below 15 degrees C. Sources of ignition such as smoking and open flames are prohibited where Methacrylic acid is handled, used, or stored. Wherever Methacrylic acid is used, handled, manufactured, or stored, use explosion-proof electrical equipment and fittings.

  • Exposure controls/personal protection:Occupational Exposure limit valuesRecommended Exposure Limit: 10 hr Time-Weighted avg: 20 ppm (70 mg/cu m). Skin.Biological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

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Relevant articles and documentsAll total 246 Articles be found

Ni-Catalyzed enantioselective reductive arylcyanation/cyclization of: N -(2-iodo-aryl) acrylamide

Dong, Kaiwu,Ren, Xinyi,Shen, Chaoren,Wang, Guangzhu

supporting information, p. 1135 - 1138 (2022/02/03)

A Ni/(S,S)-BDPP-catalyzed intramolecular Heck cyclization of N-(2-iodo-aryl) acrylamide with 2-methyl-2-phenylmalononitrile was developed to give oxindoles with good enantioselectivities. We found that utilizing such an electrophilic cyanation reagent cou

A CATALYST AND A PROCESS FOR THE PRODUCTION OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS OR ESTERS

-

Page/Page column 40, (2021/02/05)

The invention discloses a catalyst comprising a silica support, a modifier metal and a catalytic alkali metal. The silica support has a multimodal pore size distribution comprising a mesoporous pore size distribution having an average pore size in the range 2 to 50 nm and a pore volume of said mesopores of at least 0.1 cm3/g, and a macroporous pore size distribution having an average pore size of more than 50 nm and a pore volume of said macropores of at least 0.1 cm3/g. The level of catalytic alkali metal on the silica support is at least 2 mol%. The modifier metal is selected from Mg, B, Al, Ti, Zr and Hf. The invention also discloses a method of producing the catalyst, a method of producing an ethylenically unsaturated carboxylic acid or ester in the presence of the catalyst, and a process for preparing an ethylenically unsaturated acid or ester in the presence of the catalyst.

Method for synthesizing methacrylic acid by decarboxylating itaconic acid

-

Paragraph 0043-0050, (2021/11/06)

The invention relates to a method for synthesizing methacrylic acid by decarboxylating itaconic acid. The method comprises the following steps: adding water, itaconic acid and a catalyst into a high-pressure kettle, sealing the high-pressure kettle, introducing nitrogen, and conducting reacting at 190-260 DEG C for 1-8 hours to obtain methacrylic acid, wherein the catalyst is a modified hydroxyapatite catalyst with a general formula of M10(ZO4)6(X) 2, M is one or two selected from a group consisting of Ca, Mg, Ba, Fe or Sr, ZO4 is PO4, and X is OH. The modified hydroxyapatite catalyst has the advantages of being high in activity and selectivity, easy to separate, environmentally friendly and the like, an itaconic acid conversion rate is larger than 98%, and the selectivity of the target product methacrylic acid can reach 75% or above at most.

Ligand-controlled divergent dehydrogenative reactions of carboxylic acids via C–H activation

Wang, Zhen,Hu, Liang,Chekshin, Nikita,Zhuang, Zhe,Qian, Shaoqun,Qiao, Jennifer X.,Yu, Jin-Quan

, p. 1281 - 1285 (2021/12/10)

Dehydrogenative transformations of alkyl chains to alkenes through methylene carbon-hydrogen (C–H) activation remain a substantial challenge. We report two classes of pyridine-pyridone ligands that enable divergent dehydrogenation reactions through palladium-catalyzed b-methylene C–H activation of carboxylic acids, leading to the direct syntheses of a,b-unsaturated carboxylic acids or g-alkylidene butenolides. The directed nature of this pair of reactions allows chemoselective dehydrogenation of carboxylic acids in the presence of other enolizable functionalities such as ketones, providing chemoselectivity that is not possible by means of existing carbonyl desaturation protocols. Product inhibition is overcome through ligand-promoted preferential activation of C(sp3)–H bonds rather than C(sp2)–H bonds or a sequence of dehydrogenation and vinyl C–H alkynylation. The dehydrogenation reaction is compatible with molecular oxygen as the terminal oxidant.

High-performance 3D printing UV-curable resins derived from soybean oil and gallic acid

Cheng, Jianwen,Hu, Lihong,Hu, Yun,Huang, Jia,Liu, Chengguo,Shang, Qianqian,Yu, Xixi,Zhang, Jinshuai,Zhou, Yonghong,Zhu, Guoqiang

, p. 5911 - 5923 (2021/08/23)

Developing sustainable 3D printing materials has attained intensive interest due to the rapid growth of the 3D printing industry and the concerns on depletion of fossil resources and environmental pollution. In this work, a novel biobased UV-curable oligomer (GMAESO) was firstly synthesized from epoxidized soybean oil (ESO) and gallic acid (GA) via a 'green' one pot method. The obtained biobased oligomer possessed a biobased content of 82.9%. By co-photopolymerization of the obtained oligomer with a hydroxyethyl methacrylate (HEMA) diluent, a series of UV-curable materials were prepared, and their properties as well as curing behaviors were investigated. Notably, the resulting GMAESO resins with high HEMA contents (50-60%) showed low viscosities (52-93 mPa s) and excellent thermal and mechanical properties (a Tg of 128-130 °C, Tp >430 °C, a tensile strength of 42.2-44.4 MPa, etc.) which were comparable or superior to a commercial product. Furthermore, the optimal resin (GMAESO with 50% HEMA) was used for digital light processing (DLP) 3D printing. The resin showed lower penetration depth (0.277 mm) than the commercial resin, thus different-structured objects with high resolution were successfully printed. In general, the developed bio-based UV-curable resins are very promising for application in the 3D printing industry.

Process route upstream and downstream products

Process route

3-bromo-2-methylpropionic acid
56970-78-6

3-bromo-2-methylpropionic acid

furan-2,3,5(4H)-trione pyridine (1:1)

furan-2,3,5(4H)-trione pyridine (1:1)

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

hydrogen bromide
10035-10-6,12258-64-9

hydrogen bromide

Conditions
Conditions Yield
3-bromo-2-methylpropionic acid
56970-78-6

3-bromo-2-methylpropionic acid

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

hydrogen bromide
10035-10-6,12258-64-9

hydrogen bromide

Conditions
Conditions Yield
2-bromo-2-methyl-succinic acid
20469-56-1

2-bromo-2-methyl-succinic acid

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

hydrogen bromide
10035-10-6,12258-64-9

hydrogen bromide

methylammonium carbonate
15719-64-9,15719-76-3,97762-63-5

methylammonium carbonate

Conditions
Conditions Yield
Zerfaellt beim Kochen;
parathion-methyl
298-00-0

parathion-methyl

2-propyl-1-pentanol
58175-57-8

2-propyl-1-pentanol

O,O,S-trimethyl phosphorothioate
152-20-5

O,O,S-trimethyl phosphorothioate

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

methyl paraoxon
950-35-6

methyl paraoxon

Diethyl phthalate
84-66-2

Diethyl phthalate

hydroquinone
123-31-9,8027-02-9

hydroquinone

tiolacetic acid
507-09-5

tiolacetic acid

Conditions
Conditions Yield
With oxygen; at 22.2 - 25.3 ℃; Wavelength; Kinetics; Quantum yield; UV-irradiation; Neat (no solvent);
parathion-methyl
298-00-0

parathion-methyl

2-propyl-1-pentanol
58175-57-8

2-propyl-1-pentanol

O,O,S-trimethyl phosphorothioate
152-20-5

O,O,S-trimethyl phosphorothioate

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

methyl paraoxon
950-35-6

methyl paraoxon

propionic acid
802294-64-0,79-09-4

propionic acid

hydroquinone
123-31-9,8027-02-9

hydroquinone

tiolacetic acid
507-09-5

tiolacetic acid

Conditions
Conditions Yield
With water; at 22.2 - 25.3 ℃; Wavelength; Kinetics; Quantum yield; UV-irradiation; Neat (no solvent); Inert atmosphere;
sodium 3-hydroxyisobutyrate

sodium 3-hydroxyisobutyrate

methanol
67-56-1

methanol

propan-1-ol
71-23-8

propan-1-ol

2-methylpropenal
78-85-3,25120-30-3

2-methylpropenal

butene-2
107-01-7

butene-2

(E/Z)-2-buten-1-ol
6117-91-5,542-72-3

(E/Z)-2-buten-1-ol

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

ethane
74-84-0

ethane

2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

2-methyl-2-pentenal
14250-96-5,16958-22-8,623-36-9

2-methyl-2-pentenal

cyclopenta-1,3-diene
542-92-7,25568-84-7,7313-32-8

cyclopenta-1,3-diene

propionaldehyde
123-38-6

propionaldehyde

hexa-2,4-diene
592-46-1

hexa-2,4-diene

isobutyraldehyde
78-84-2

isobutyraldehyde

pentan-3-one
96-22-0

pentan-3-one

butanone
78-93-3

butanone

Conditions
Conditions Yield
at 500 ℃; for 0.0166667h; Pyrolysis;
sodium 3-hydroxyisobutyrate

sodium 3-hydroxyisobutyrate

methanol
67-56-1

methanol

propan-1-ol
71-23-8

propan-1-ol

2-methylpropenal
78-85-3,25120-30-3

2-methylpropenal

(E/Z)-2-buten-1-ol
6117-91-5,542-72-3

(E/Z)-2-buten-1-ol

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

2-methyl-2-pentenal
14250-96-5,16958-22-8,623-36-9

2-methyl-2-pentenal

propyl methacrylate
2210-28-8,25609-74-9

propyl methacrylate

propionaldehyde
123-38-6

propionaldehyde

isobutyraldehyde
78-84-2

isobutyraldehyde

Conditions
Conditions Yield
at 400 ℃; for 0.0166667h; Pyrolysis;
furfural
98-01-1

furfural

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

benzaldehyde
100-52-7

benzaldehyde

propionic acid
802294-64-0,79-09-4

propionic acid

acrylic acid
79-10-7

acrylic acid

Conditions
Conditions Yield
isobutene; With water; oxygen; Oxidation catalyst I (first oxidation catalyst) was prepared according to Example 1 of EP 0 267 556 A2; at 360 ℃; Gas phase;
Oxidation catalyst II (second oxidation catalyst) was prepared according to Example 1 ofEP 0 376 117 A1; at 300 ℃; Product distribution / selectivity; Gas phase;
furfural
98-01-1

furfural

furan-3-carboxaldehyde
498-60-2

furan-3-carboxaldehyde

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

allyl acrylate
999-55-3

allyl acrylate

benzaldehyde
100-52-7

benzaldehyde

acetic acid
64-19-7,77671-22-8

acetic acid

propionic acid
802294-64-0,79-09-4

propionic acid

acrylic acid
79-10-7

acrylic acid

Conditions
Conditions Yield
Gas phase;
propane
74-98-6

propane

cyclopropane
75-19-4

cyclopropane

furfural
98-01-1

furfural

furan-3-carboxaldehyde
498-60-2

furan-3-carboxaldehyde

poly(methacrylic acid)
79-41-4,25087-26-7,50867-57-7

poly(methacrylic acid)

allyl acrylate
999-55-3

allyl acrylate

benzaldehyde
100-52-7

benzaldehyde

acetic acid
64-19-7,77671-22-8

acetic acid

propionic acid
802294-64-0,79-09-4

propionic acid

acrylic acid
79-10-7

acrylic acid

Conditions
Conditions Yield
With water; oxygen; [Bi2W2O9. 2WO3]0.5 [Mo12Co5.5Fe2.94Si1.59K0.08Ox]1, Mo12V3W1.2Cu2.4,4Ox; Conversion of starting material;

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  • Kono Chem Co.,Ltd
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  • Contact Tel:86-29-86107037-8015
  • Emails:info@konochemical.com
  • Main Products:83
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  • EAST CHEMSOURCES LIMITED
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  • Contact Tel:86-532-81906761
  • Emails:josen@eastchem-cn.com
  • Main Products:97
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  • Amadis Chemical Co., Ltd.
  • Business Type:Lab/Research institutions
  • Contact Tel:86-571-89925085
  • Emails:sales@amadischem.com
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  • Aecochem Corp.
  • Business Type:Manufacturers
  • Contact Tel:+86-592 599 8717
  • Emails:sales@aecochemical.com
  • Main Products:70
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