Molten Type Maleic Anhydride（MA)
Characteristics and uses of liquid maleic anhydride
Liquid maleic anhydride is a colorless to pale yellow liquid with a chemical formula of C4H5NO3, a melting point of -16 °C, and a boiling point of 206 °C. Liquid maleic anhydride is a highly polar solvent with good solubility and fluidity, and is commonly used as an intermediate in the manufacture of various chemicals, such as polyimide, polyamide, polyester, polyimide fibers, and membranes.
Liquid maleic anhydride has low toxicity and volatile properties. It is becoming more and more widely used as an industrial intermediate, mainly because liquid maleic anhydride is more environmentally friendly and safe than other solvents. In addition, liquid maleic anhydride can be used as a dye solvent and surfactant.
Solid Maleic Anhydride（MA)
Characteristics and uses of solid maleic anhydride
Solid maleic anhydride with the chemical formula C4H4N2O3 is a white to light yellow powdered solid that can be used to make a variety of chemicals such as brazing agents, plastics, and dyes.
Solid maleic anhydride is highly oxidizing and toxic and should be used with caution. Solid maleic anhydride is more stable than liquid maleic anhydride, but it is necessary to avoid contact with moisture and oxygen. Once solid maleic anhydride reacts with water or air, it produces toxic gases and exacerbates its corrosiveness and toxicity.
In addition to being used in the production of chemicals such as plastics, dyes and brazing agents, solid maleic anhydride can also be used as a chemical analysis reagent and a dye reagent in biomedical research.
The difference between liquid maleic anhydride and solid maleic anhydride.
Liquid maleic anhydride and solid maleic anhydride are different forms of the same chemical, but their properties and uses vary greatly. Liquid maleic anhydride has a low temperature and is volatile, mainly used for solvents and intermediates; Solid maleic anhydride has high stability, strong oxidation and toxicity, and can be used in the production of dyes, plastics and other chemicals.
In conclusion, although liquid maleic anhydride and solid maleic anhydride have the same chemical structure and similar physical properties, there are obvious differences in their properties and uses. The correct use of liquid maleic anhydride and solid maleic anhydride can effectively promote the production and development of various chemicals.