1.Basic Product Information

Product Name: BDO / 1,4-Butanediol

Alias: 1,4-Dihydroxybutane, Tetramethylene Glycol, Butylene Glycol

CAS No.: 110-63-4

Molecular Formula: C₄H₁₀O₂

Molecular Weight: 90.12 g/mol

Molecular Structure: 

Grade Type: Industrial high-purity polymer grade (≥99.5%)

2.Product Overview

BDO (1,4-Butanediol) is a high-purity linear aliphatic diol and one of the most fundamental fine chemical raw materials in the polymer industry. With symmetrical linear molecular structure and dual-terminal active hydroxyl groups, BDO delivers excellent reaction activity, high cross-linking efficiency, outstanding flexibility and structural stability. It is widely used as a core chain extender for polyurethane elastomers and resins, as well as a key monomer for synthesizing PBT, PBS, spandex fiber and THF. End products modified with BDO feature superior toughness, abrasion resistance, low-temperature flexibility and mechanical strength, covering polyurethane, textile, new material and engineering plastic industrial fields.

3.Typical Specifications

4.Physical & Chemical Properties

Physical Properties

BDO is a colorless transparent viscous oily liquid at room temperature, presenting solid state at low temperature below 20℃. It features excellent water solubility and great miscibility with alcohols, esters, ketones and various organic solvents. With low chroma, ultra-low moisture and stable physical purity, BDO maintains uniform and stable state during long-term storage without stratification or impurity precipitation, ensuring consistent processing performance for continuous industrial polymerization and PU synthesis production.

Chemical Properties

BDO contains two highly active terminal hydroxyl groups with symmetrical linear molecular structure, enabling stable and efficient cross-linking reaction with isocyanate (-NCO) and carboxylic acid groups. It features moderate reaction activity, uniform curing speed and high polymerization efficiency, effectively improving the cross-linking density and structural regularity of polymer materials. The straight-chain molecular segment endows finished products with excellent low-temperature toughness, wear resistance and tensile strength. BDO boasts outstanding chemical stability and hydrolytic resistance, ensuring long-term stable physical and chemical properties of synthesized polymer materials.

5.Main Applications

9.Finemax Advantages

Finemax Chemical supplies high-purity industrial-grade BDO with stable purity, ultra-low moisture and consistent batch quality. Our BDO features accurate technical indicators and excellent reaction activity, perfectly matching the synthesis requirements of polyurethane elastomers, PBT, PBS and spandex fibers. With strict quality control system, sufficient stable inventory and professional technical support, we provide cost-effective and reliable raw material solutions for global polymer, new material and fine chemical manufacturing enterprises.

10.Inquiry & Service

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