Product Description
1,4-Butanediol (BDO) is a colorless, viscous organic liquid and an important chemical feedstock and intermediate used across multiple industrial sectors.
BDO is primarily used in the production of polybutylene terephthalate (PBT), a high-performance engineering thermoplastic widely used in automotive components, electrical and electronic parts, connectors, and industrial applications.
It is also an important raw material for manufacturing polyurethane products, tetrahydrofuran (THF), gamma-butyrolactone (GBL), coatings, adhesives, and other specialty chemicals.
BDO should be handled and stored in accordance with applicable industrial safety requirements, particularly because it can react with strong oxidizing agents.
Product Parameters
| Melting point | 16 °C (lit.) |
| Boiling point | 230 °C (lit.) |
| density | 1.017 g/mL at 25 °C (lit.) |
| vapor density | 3.1 (vs air) |
| vapor pressure | <0.1 hPa (20 °C) |
| refractive index | n20/D 1.445(lit.) |
| Fp | 135 °C |
| storage temp. | Store below +30°C. |
| pka | 14.73±0.10(Predicted) |
| form | Liquid |
| color | Clear colorless |
| Odor | Odorless |
| PH | 7-8 (500g/l, H2O, 20℃) |
| explosive limit | 1.95-18.3%(V) |
| Water Solubility | Miscible |
| Sensitive | Hygroscopic |
| BRN | 1633445 |
| Dielectric constant | 30.0（30℃） |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, mineral acids, acid chlorides, acid anhydrides. |
| InChIKey | WERYXYBDKMZEQL-UHFFFAOYSA-N |
| LogP | -0.88 at 25℃ |
| Surface tension | 45.33mN/m at 298.15K |
| CAS DataBase Reference | 110-63-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,4-Butanediol(110-63-4) |
| EPA Substance Registry System | 1,4-Butanediol (110-63-4) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 22-67 |
| Safety Statements | 36-23-24/25 |
| WGK Germany | 1 |
| RTECS | EK0525000 |
| Autoignition Temperature | 698 °F |
| TSCA | Yes |
| HS Code | 29053980 |
| Hazardous Substances Data | 110-63-4(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 1525 mg/kg LD50 dermal Rabbit > 2000 mg/kg |
Application Scenarios
In addition to its use in PBT production, 1,4-Butanediol (BDO) is widely used as an important chemical feedstock for the manufacture of polyurethanes, γ-butyrolactone (GBL), tetrahydrofuran (THF), and other downstream chemicals.
· Polyurethane Production: BDO is used as a chain extender and raw material in the production of polyurethane foams, coatings, adhesives, elastomers, and sealants, contributing to desirable mechanical and processing properties.
· γ-Butyrolactone (GBL): BDO is an important feedstock for GBL, which is widely used as a solvent and chemical intermediate in chemical synthesis and industrial formulations.
· Tetrahydrofuran (THF): BDO is used to produce THF, an important organic solvent and chemical intermediate widely applied in polymer manufacturing, pharmaceuticals, and specialty chemical synthesis.
· Specialty Chemicals: BDO also serves as a versatile intermediate for producing various polymer materials, solvents, coatings, adhesives, and other specialty chemical products.
With its broad range of downstream applications, 1,4-Butanediol is an important building block in the chemical industry, supporting the production of high-performance polymers and specialty chemicals across multiple industrial sectors.
