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M0375

Maleic acid

ReagentPlus®, ≥99% (HPLC)

동의어(들):

cis-Butenedioic acid, Toxilic acid

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제품정보 (DICE 배송 시 비용 별도)

Linear Formula:
HO2CCH=CHCO2H
CAS 번호:
110-16-7
Molecular Weight:
116.07
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
24896549
EC Number:
203-742-5
Beilstein/REAXYS Number:
605762
MDL number:
MFCD00063177
Assay:
≥99% (HPLC)
Concentration:
≤100%
Form:
powder
Grade:
reagent grade
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도움 문의

grade

reagent grade

Quality Level

200

vapor density

4.0 (at °C, vs air)

vapor pressure

≤0.1 at hPa ( 20 °C)

product line

ReagentPlus®

assay

≥99% (HPLC)

form

powder

concentration

≤100%

impurities

≤2.0% water

ign. residue

≤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.)

functional group

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

General description

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.

Application

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.

Analysis Note

Repurified

Legal Information

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

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

저장 등급

8A - Combustible corrosive hazardous materials

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시험 성적서(COA)

Lot/Batch Number
029K3530
029K5409
098K5421
098K0104
088K5448

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Bromine-Catalyzed Isomerization of Maleic Acid to Fumaric Acid.
Jwo JJ.
J. Chin. Chem. Soc., 28(1), 34-41 (1981)
A refinement of the crystal structure of maleic acid.
James MNG and Williams GJB.
Acta Crystallographica Section B, Structural Science, 30(5), 1249-1257 (1974)
Swelling equilibria and dye adsorption studies of chemically crosslinked superabsorbent acrylamide/maleic acid hydrogels.
Karadag E, et al.
Eur. Polymer J., 38(11), 2133-2141 (2002)
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국제 무역 품목 번호

SKUGTIN
M0375-100G04061835321070
M0375-1KG04061835321087
M0375-25KG04061835567744
M0375-500G04061835321094