Maleic anhydride, 98+%, Thermo Scientific Chemicals
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Maleic anhydride, 98+%, Thermo Scientific Chemicals
Thermo Scientific Chemicals

Maleic anhydride, 98+%, Thermo Scientific Chemicals

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数量:
250 g
1000 g
5000 g
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製品番号（カタログ番号） A12178.30
または、製品番号A12178-30
価格（JPY）/ Each
-
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数量:
250 g
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化学物質識別子
CAS108-31-6
IUPAC Name2,5-dihydrofuran-2,5-dione
Molecular FormulaC4H2O3
InChI KeyFPYJFEHAWHCUMM-UHFFFAOYSA-N
SMILESO=C1OC(=O)C=C1
さらに表示
仕様Specification Sheetスペックシート
FormBriquettes or flakes or pellets
Assay (Aqueous acid-base Titration)≥98.0 to ≤102.5%
Free acid (titration)≤0.5% (as maleic acid)
Identification (FTIR)Conforms
Melting Point (clear melt)50-56­?C
さらに表示
Maleic anhydride is used in the preparation of unsaturated polyester resins, 4-butanediol, fumairc acid, tetrahydrofuran and gamma-butyrolactone. It is also used as lubricating oil additives, dispersants, artificial sweeteners, flavor enhancements, floor polishes and corrosion inhibitors. It finds application in personal care products like hair sprays. Further, it is used in water treatment chemicals, detergents, pharmaceuticals and copolymers. It is an active substrate for Diels-Alder reactions and dimerizes to form cyclobutane tetracarboxylic dianhydride .

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Maleic anhydride is used in the preparation of unsaturated polyester resins, 4-butanediol, fumairc acid, tetrahydrofuran and gamma-butyrolactone. It is also used as lubricating oil additives, dispersants, artificial sweeteners, flavor enhancements, floor polishes and corrosion inhibitors. It finds application in personal care products like hair sprays. Further, it is used in water treatment chemicals, detergents, pharmaceuticals and copolymers. It is an active substrate for Diels-Alder reactions and dimerizes to form cyclobutane tetracarboxylic dianhydride .

Solubility
Soluble in water, acetone and dioxane. Slightly soluble in methanol, chloroform and benzene.

Notes
Moisture sensitive. Incompatible with strong oxidizing agents, strong acids, strong bases, strong reducing agents, alkali metals and amines.
RUO – Research Use Only

General References:

  1. Reactive dienophile. For a review of its Diels-Alder reactions, see: Org. React., 4, 1 (1948). For examples, see: Org. Synth. Coll., 3, 807 (1955); 4, 890 (1963). For reaction with Danishefsky's diene ( 1-Methoxy-3-trimethyl siloxy-1,3-butadiene, L14672 ), see: Org. Synth. Coll., 7, 312 (1990).
  2. Also undergoes photochemical and thermal (2+2)-cycloadditions with alkenes. For reaction with 1-alkynes, see: Chem. Ber., 102, 3974 (1969).
  3. For thermal (2+2)-cycloaddition with allene at high temperature, see: Org. Synth. Coll., 5, 459 (1973).
  4. For use in combination with Urea hydrogen peroxide adduct, L13940 , to generate peroxymaleic acid in epoxidation and Baeyer-Villiger reactions, see: Heterocycles, 36, 1075 (1993). Peroxymaleic acid can also be generated in situ from maleic anhydride and 30% H2O2 in NMP, and has been found to be a very effective oxidant for conversion of sulfides to sulfoxides. For a study of stoichiometric and catalytic oxidations with this system, see: J. Org. Chem., 61, 5693 (1996).
  5. Bao, Z.; Lee, E.; Tao, J.; Sun, X. Effect of halloysite and maleic anhydride grafted polypropylene on the isothermal crystallization kinetics of polypropylene based composites. Polym. Sci. Ser. A Polym. Phys. 2015, 57 (6), 889-897.
  6. Chatzidimitriou, A.; Bond, J. Q. Oxidation of levulinic acid for the production of maleic anhydride: breathing new life into biochemicals. Green Chem. 2015, 17 (8), 4367-4376.