M0375

Maleic acid

ReagentPlus^®, ≥99% (HPLC)

• 동의어(들): cis-Butenedioic acid, Toxilic acid
• Linear Formula: HO₂CCH=CHCO₂H
• CAS Number: 110-16-7
• Molecular Weight: 116.07
• Beilstein: 605762
• EC Number: 203-742-5
• MDL number: MFCD00063177
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24896549
• NACRES: NA.21

속성

• Grade: reagent grade
• Quality Level: 200
• vapor density: 4.0 (at °C, vs air)
• vapor pressure: ≤0.1 at hPa ( 20 °C)
• 제품 라인: ReagentPlus^®
• 분석: ≥99% (HPLC)
• 양식: powder
• 농도: ≤100%
• 불순물: ≤2.0% water
• 무기 잔류물: ≤0.1%
• pH: 1,3 -at 100 g/l (at 20 °C)
• pKa(25 °C): (1) 1.97, (2) 6.24
• bp: 157.8 °C/316.0 °F -at 997 hPa
• mp: 130-135 °C (lit.)
• solubility: water: soluble 478,8 g/L at at 20 °C (Completely )
• density: 1.59 g/mL at 25 °C (lit.)
• 작용기: carboxylic acid
• SMILES string: OC(=O)\C=C/C(O)=O
• InChI: 1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
• InChI key: VZCYOOQTPOCHFL-UPHRSURJSA-N

설명

일반 설명

Maleic acid (MA) is a dicarboxylic acid that undergoes esterification with ethanol in the presence of cation-exchange resin catalysts to form diethyl maleate. Its crystalline structure has been analyzed. Reaction kinetics and mechanism of the isomerization of maleic acid to fumaric acid in the presence of ceric and bromide ions has been investigated. The reaction mechanism and reactivity ratios for the radical copolymerization of maleic acid with styrene have been determined.

애플리케이션

Maleic acid has been used in the preparation of tris-maleate buffer and sodium maleate buffer. It has also been used for the pretreatment of poplar tracheid cell walls for the spectroscopic analysis of lignin. It may be used to synthesize superswelling acrylamide/maleic acid hydrogels.

분석 메모

Repurified

법적 정보

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

안전성 정보

• 픽토그램: GHS05,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H302 + H312,H314,H317,H335
• 예방조치 성명서: P260 - P271 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1 - Skin Sens. 1 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1