What’s different Butenediol and 1,4-Butanediol ？

Butenediol and 1,4-Butanediol are two different chemical compounds used in various applications in the industry, pharmaceutical, and production sectors. Despite their similar names and molecular structure, these two compounds have several differences that set them apart from each other.

Firstly, Butenediol and 1,4-Butanediol have different molecular formulas. Butenediol has a formula, C4H6O2, while 1,4-Butanediol has a formula of C4H10O2. This difference in molecular structure and formula affects their physical and chemical properties, such as melting and boiling points, solubility, and reactivity.

Secondly, Butenediol and 1,4-Butanediol have different uses and applications. Butenediol is primarily used in the manufacturing of polyester and polyurethane resins, adhesives, plasticizers, and as a solvent for paint and coatings. In contrast, 1,4-Butanediol is used as a feedstock for the production of several chemicals, including gamma-butyrolactone (GBL), tetrahydrofuran (THF), and polyurethanes. Additionally, it is used in the manufacture of automotive components, electronics, pharmaceuticals, and cosmetics.

Thirdly, Butenediol and 1,4-Butanediol have different toxicities and risks associated with their use. Butenediol is classified as an irritant to the skin and eyes and can cause respiratory irritation when inhaled. On the other hand, 1,4-Butanediol is classified as a potential carcinogen and mutagen and poses a risk of acute toxicity to humans if ingested or inhaled.

Lastly, Butenediol and 1,4-Butanediol have different production processes. The production of Butenediol involves the reaction of maleic anhydride with an alcohol, such as ethylene glycol or propylene glycol. The production of 1,4-Butanediol, on the other hand, involves the hydrogenation of succinic acid, which is obtained from the anaerobic fermentation of renewable resources, such as corn starch or sugar cane.

In conclusion, Butenediol and 1,4-Butanediol are two distinct chemical compounds with different molecular formulas, uses, toxicities, risks, and production processes. While they share some similarities, such as their use in the manufacturing of polyurethanes, they have unique properties that make them suited for different applications. It is essential to understand these differences to ensure their safe and efficient use in various industries and applications.