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    Home > Maleic anhydride
    Maleic anhydride structure

    Maleic anhydride

    • CAS No:

      108-31-6

    • Formula:

      C4H2O3

    • Synonyms:

      MA

    • 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.

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    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.

    2018.11-2019.11 TOP10 Purchasing Countries' Export Data of Chinese Maleic anhydride

    From 2018.11 to 2019.11, China has exported Maleic anhydride to 55 countries in total. Country ranks by import volume from high to low is India, Turkey, Brazil, Russia, Egypt, Singapore, Pakistan, Italy, Iran, Indonesia. The highest export volume was China to India, accounting for 19.82% of the total volume of China.

    Check Export Data for More Purchasing Countries

    Purchasing Country Export Volume(KG) Export Percentage Export Value($)

    India

    46,343,015

    19.82%

    42,214,080

    Turkey

    29,723,000

    12.71%

    26,991,782

    Brazil

    9,886,000

    4.23%

    8,768,386

    Russia

    8,267,000

    3.54%

    7,670,793

    Egypt

    7,392,000

    3.16%

    6,359,007

    Singapore

    5,600,590

    2.40%

    5,583,841

    Pakistan

    5,054,000

    2.16%

    4,530,781

    Italy

    5,016,964

    2.15%

    4,725,562

    Iran

    4,902,000

    2.10%

    5,282,590

    Indonesia

    4,700,000

    2.01%

    4,474,176

    United Arab Emirates

    4,294,000

    1.84%

    4,428,864

    Mexico

    3,482,000

    1.49%

    3,241,102

    Malaysia

    2,872,000

    1.23%

    2,872,596

    Peru

    1,916,000

    0.82%

    1,828,045

    Korea

    1,283,000

    0.55%

    1,295,457

    Colombia

    1,152,000

    0.49%

    1,048,748

    Saudi Arabia

    1,008,000

    0.43%

    939,827

    South Africa

    849,800

    0.36%

    774,138

    Kuwait

    800,000

    0.34%

    768,400

    Portugal

    680,000

    0.29%

    545,242

    Ecuador

    616,000

    0.26%

    547,656

    Argentina

    564,000

    0.24%

    491,060

    Philippines

    544,000

    0.23%

    514,920

    Tunisia

    480,000

    0.21%

    463,014

    Hongkong

    450,000

    0.19%

    424,000

    Vietnam

    324,000

    0.14%

    299,046

    Chile

    308,000

    0.13%

    288,767

    Thailand

    308,000

    0.13%

    273,954

    Costa Rica

    287,000

    0.12%

    274,170

    Taiwan

    250,740

    0.11%

    259,168

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