Maleic anhydride, with the CAS number 108-31-6, is a cyclic dicarboxylic anhydride derived from maleic acid. It is characterized by its molecular formula C4H2O3 and has several notable properties and applications.
Properties of Maleic Anhydride
Appearance: Maleic anhydride is typically a colorless or white crystalline solid that can also appear as white powder or lumps.
Density: It has a density of approximately 1.48 g/cm³.
Melting and Boiling Points: The melting point of maleic anhydride is around 52.8 °C (127.0 °F), while its boiling point is approximately 202 °C (396 °F).
Solubility: Maleic anhydride reacts with water, hydrolyzing to form maleic acid, and is generally considered to be soluble in various organic solvents.
Odor: It has a strong, acrid odor that can be irritating and is classified as a health hazard.
Uses of Maleic Anhydride
Maleic anhydride is widely used in various industrial applications, including:
Chemical Synthesis: It serves as a key intermediate in the production of unsaturated polyester resins, which are used in coatings, adhesives, and composite materials.
Agricultural Products: It is utilized in the manufacture of certain agricultural chemicals and fertilizers.
Pharmaceuticals: Maleic anhydride is involved in the synthesis of various pharmaceutical compounds.
Food Additives: It is also used in the production of food additives and artificial sweeteners.
Safety and Handling
Due to its corrosive nature and potential health hazards, maleic anhydride should be handled with care. It is classified as an irritant and can cause respiratory issues upon exposure. Proper safety measures, including the use of personal protective equipment, are recommended when working with this chemical.
In summary, maleic anhydride (CAS 108-31-6) is a versatile chemical compound with significant industrial applications, but it requires careful handling due to its hazardous properties.
Maleic anhydride CAS 108-31-6
CAS Number:108-31-6
Other Name :
2,5-Furandione;
MA
MF:C4H2O3