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8.00408

Sigma-Aldrich

Maleic anhydride

for synthesis

Synonym(s):

Maleic anhydride, 2,5-Furanedione

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About This Item

Empirical Formula (Hill Notation):
C4H2O3
CAS Number:
Molecular Weight:
98.06
MDL number:
UNSPSC Code:
12352106
EC Index Number:
203-571-6

vapor pressure

1.33 hPa ( 44 °C)

Quality Level

form

solid

autoignition temp.

475 °C (DIN 51794)

potency

1090 mg/kg LD50, oral (Rat)
2620 mg/kg LD50, skin (Rabbit)

expl. lim.

1.4-7.1 % (v/v)

pH

0.8 (20 °C, 550 g/L in H2O, Hydrolysis)

bp

202 °C/1013 hPa

mp

51-53 °C

transition temp

flash point 103 °C

density

1.32 g/cm3 at 55 °C

bulk density

700‑800 kg/m3

storage temp.

2-30°C

InChI

1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H

InChI key

FPYJFEHAWHCUMM-UHFFFAOYSA-N

Application

  • Chemical modification of polypropylene by maleic anhydride: This study explored the application of maleic anhydride (MAH) for modifying the properties of polypropylene through melt grafting. The findings reveal how variations in the concentration of MAH influence the polymer′s properties (Ebadi-Dehaghani et al., 2014).
  • Renewable production of phthalic anhydride: A study on the synthesis of phthalic anhydride from biomass-derived furan and maleic anhydride, highlighting an eco-friendly pathway for producing a widely used industrial chemical (Mahmoud et al., 2014).
  • Enhancement of biopolymer properties: Research on using maleic anhydride as a compatibilizer in natural fiber-reinforced poly(lactic acid) composites, which demonstrates the improvements in mechanical and thermal properties of the composites (Yu et al., 2014).
  • Application in electrical property enhancement: This article reports on the application of maleic anhydride grafted polypropylene which significantly enhances the material′s electrical properties, potentially applicable in various advanced electronics and engineering fields (Zhou et al., 2016).

Analysis Note

Assay (morpholine method): ≥ 99,0 %(m)
Melting range (lower value): ≥ 51 °C
Melting range (upper value): ≤ 54 °C
Identity (IR): conforms

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1A - STOT RE 1 Inhalation

target_organs

Respiratory system

supp_hazards

Storage Class

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

flash_point_f

217.4 °F

flash_point_c

103 °C


Certificates of Analysis (COA)

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