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| Customization: | Available |
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| Appearance: | Powder |
| Type: | Synthesis Material Intermediates |
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Chemical Name: 1,4-Butynediol (or simply Butynediol)
CAS No.: 110-65-6
Synonyms: 2-Butyne-1,4-diol, BD
1,4-Butynediol is a colorless to pale yellow, crystalline solid at room temperature (below 58°C). It is highly soluble in water and polar organic solvents. Its key structural feature is a central carbon-carbon triple bond (alkyne group) flanked by two hydroxyl (-OH) groups, making it a highly versatile and reactive bifunctional molecule (both an alkyne and a diol).
| Item | Specifications |
| Appearance | White or light yellow crystalline powder |
| purity | 98%min |
Due to its reactive structure, butynediol is a critical platform chemical for downstream synthesis. Its primary applications are as follows:
1. Chemical Synthesis (Core Use as Intermediate)
Production of 1,4-Butanediol (BDO): This is its largest application. Butynediol is hydrogenated to produce 1,4-butanediol, a major industrial solvent and precursor for polymers (e.g., polybutylene terephthalate - PBT, polyurethanes).
Production of Tetrahydrofuran (THF): Further processing of BDO (derived from butynediol) yields THF, an important polar solvent and precursor for elastic fibers like Spandex (Lycra®).
Production of N-Methyl-2-pyrrolidone (NMP): Via reaction with methylamine, NMP is produced, a powerful industrial solvent used in electronics, pharmaceuticals, and polymer processing.
Electroplating Brighteners: It serves as a raw material for synthesizing brightening and leveling agents used in electroplating baths (e.g., for nickel).
2. Corrosion Inhibition
Used directly as a volatile corrosion inhibitor (VCI) in closed systems (e.g., boilers, steam circuits). Its vapor provides a protective layer on metal surfaces.
3. Specialty Chemicals
Serves as a starting material for various fine chemicals, including pharmaceuticals, agrochemicals, and specialty polymers.
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