1,4‑Butanediol

1,4‑Butanediol

CAS Number:110‑63‑4

Chemical Formula:C₄H₁₀O₂

Product Introduction

A colorless, odorless, hygroscopic liquid. A versatile diol used as a precursor to tetrahydrofuran (THF), polybutylene terephthalate (PBT), polyurethanes, solvents, and elastic fibers.

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Physical & Chemical Properties

Property Value
Melting Point ~16 °C
Boiling Point ~230 °C
Density ~1.017 g/mL @ 25 °C
Vapor Pressure <0.1 hPa @ 20 °C
Refractive Index ~1.445 @ 20 °C
Solubility Miscible in water & organics
Flash Point ~135 °C

Applications

  • Precursor to THF, PBT, polyurethanes, and polyether polyols
  • Solvent in industrial cleaners and glue removal
  • Intermediate in pharmaceutical and polymer industries

Safety & Handling

  • Warning: Toxic if ingested (H302). May cause dizziness (H336).
  • Combustible; keep away from heat and ignition. Store under 30 °C.
  • Use gloves, goggles, ventilation; avoid oxidizers and acid chlorides.

Packing Options

  • Laboratory bottles (1 L–25 kg)
  • Industrial drums (200 kg), IBCs, bulk tanks

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