Product
  • Product
  • Supplier
  • Inquiry

    EN

    Home > Maleic anhydride
    Maleic anhydride structure

    Maleic anhydride

    • CAS No:

      108-31-6

    • Formula:

      C4H2O3

    • China Export:

      From 2018.11 to 2019.11, total export volume of Maleic anhydride from China was 151,241,090KG while total export value was $140,016,571. The biggest proportion of exporting volume in the last 12 months was 15.40% in 2019.04.

    Request for Quotation

    Description

    Colorless needles, white lumps, or pellets with an irritating, choking odor.

    Basic Attributes

    • 108-31-6

    • C4H2O3

    • 98.05688

    • 98.000397

    • 43.37000

    • -0.37

    • 203-571-6

    • FPYJFEHAWHCUMM-UHFFFAOYSA-N

    • 3

    • 0

    • 0

    Characteristics

    • White powder

    • 1.5±0.1 g/cm3

    • 51-56 °C(lit.)

    • 200 °C(lit.)

    • 218 °F

    • 1.515

    • H2O: 79 g/100 mL (25 ºC)

    • Store at RT.

    • 0.16 mm Hg ( 20 °C)

    • 3.4 (vs air)

    • 106909

    • Stable. Combustible. Incompatible with water, strong oxidizing agents, alkali metals, strong bases, amines, most common metals, polymerization catalysts and accelerators.

    Safety Information

    • III

    • 8

    • 2917140000

    • UN 2215 8/PG 3

    • 1

    • 22-34-42/43

    • 22-26-36/37/39-45

    • ON3675000

    • C

    • The warehouse is ventilated, low temperature and dry; stored separately from oxidants and amines

    • P261-P280-P284-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338-P342 + P311

    • H302-H314-H317-H334-H372-H373

    • Flammable; spicy and irritating smoke is released from the fire

    • 1.4-7.1%(V)

    • Explosive when mixed with air

    • Oral-rat LD50: 708 mg/kg; Oral-Mouse LD50: 2400 mg/kg

    • moderately toxic

    Product Usage

    In Diels-Alder syntheses (as a dienophile), manufacture of alkyd-type of resins, dye intermediates, pharmaceuticals, agricultural chemicals (maleic hydrazide, malathion), in copolymerization reactions.

    Production Methods

    The synthesis methods of maleic anhydride mainly include benzene oxidation method, butene oxidation method, butane oxidation method, etc. At present, most of the production uses benzene oxidation method, that is, benzene is used as a raw material to obtain maleic anhydride through catalytic oxidation. A fixed-bed or ebullated-bed reactor is used to oxidize benzene to maleic anhydride with air under the action of a V-Mo-P catalyst. The reaction temperature is 365°C. Then absorb with water to produce maleic acid aqueous solution, and then use xylene for azeotropic distillation and dehydration to obtain maleic anhydride, and finally vacuum distillation to obtain the finished product.

    More

    China Maleic anhydride Export Data

    Data referenced from General Administration of Customs,P.R.China

    2018.11-2019.11 China - America  Maleic anhydride Export Data

    From 2018.11 to 2019.11, total export volume of Maleic anhydride from China to America was 120,000KG while total export value was $119,000. The biggest proportion of exporting volume in the last 12 months was 33.33% in 2018.11.

    2018.11-2019.11 China Maleic anhydride Export Data

    From 2018.11 to 2019.11, total export volume of Maleic anhydride from China was 151,241,090KG while total export value was $140,016,571. The biggest proportion of exporting volume in the last 12 months was 15.40% in 2019.04.

    Suggestions
    Email:
    Message:
    Send Message