8.00408

Maleic anhydride

for synthesis

• Synonym(s): Maleic anhydride, 2,5-Furanedione
• Empirical Formula (Hill Notation): C₄H₂O₃
• CAS Number: 108-31-6
• Molecular Weight: 98.06
• MDL number: MFCD00005518
• UNSPSC Code: 12352106
• EC Index Number: 203-571-6
• NACRES: NA.22

Properties

• vapor pressure: 1.33 hPa ( 44 °C)
• Quality Level: 200
• 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
• SMILES string: O1C(=O)C=CC1=O
• InChI: 1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H
• InChI key: FPYJFEHAWHCUMM-UHFFFAOYSA-N

Description

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

Safety Information

• Pictograms: GHS05,GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H302 - H314 - H317 - H334 - H372
• Precautionary Statements: P260 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 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
• Supplementary Hazards: EUH071
• Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 1
• Flash Point(F): 217.4 °F
• Flash Point(C): 103 °C