1,4-Butanediol

Chemical Name: 1,4-Butanediol
CAS NO.：110-63-4
Appearance and Properties: Colorless viscous liquid at room temperature, with a slight odor. It is miscible with water, alcohols, ketones, and many other polar solvents, and has good solubility in a wide range of organic compounds. BDO has high boiling point and low volatility, which makes it stable during normal storage and processing conditions.

●Reactivity: BDO contains two hydroxyl groups, making it highly reactive. It can participate in various chemical reactions, such as esterification, etherification, oxidation, and condensation reactions. These reactivity characteristics enable it to be used as a key raw material in numerous industrial chemical syntheses.

●Solvency: As a polar solvent, BDO can dissolve many polymers, resins, and other substances, which is beneficial for its application in processes such as coating preparation and ink formulation.

●Thermal Stability: It can maintain stable physical and chemical properties within a certain temperature range. However, at extremely high temperatures, it may undergo decomposition or other chemical changes.

●Hygroscopicity: BDO has a certain degree of hygroscopicity. In a humid environment, it will absorb moisture from the air, which needs to be considered during storage and use to avoid affecting product quality.

●Chemical Synthesis Industry: BDO is a crucial raw material for the production of various chemicals. It is mainly used to produce γ-butyrolactone (GBL), tetrahydrofuran (THF), and polybutylene terephthalate (PBT). Through dehydration, BDO can be converted into THF, which is widely used in the production of polymers and as a solvent. Oxidation of BDO can produce GBL, which is further used in the synthesis of N-methyl - 2 - pyrrolidone (NMP) and other important chemical products. Condensation of BDO with terephthalic acid can yield PBT, a high - performance engineering plastic.

●Lithium - ion Battery Industry: In the lithium - ion battery field, BDO is used in the production of electrolytes. It can dissolve lithium salts and other components, and its excellent solubility and chemical stability help to improve the conductivity and stability of the electrolyte, which is essential for the performance and safety of lithium - ion batteries.

●Polyurethane Industry: BDO serves as a chain extender in the production of polyurethane elastomers, foams, and coatings. By reacting with diisocyanates, it helps to form a long - chain structure, endowing polyurethane products with excellent mechanical properties, such as high strength, wear resistance, and elasticity. These products are widely used in automotive parts, construction materials, footwear, and furniture.

●Textile and Plasticizer Industry: In the textile industry, BDO - based products can be used as softeners and finishing agents to improve the feel and performance of fabrics. In the plasticizer industry, some derivatives of BDO are used as plasticizers to increase the flexibility and processability of plastics, and are applied to various plastic products such as PVC products.

●Cosmetics and Pharmaceuticals Industry: Due to its good solubility and relatively low toxicity, BDO can be used as a solvent and humectant in cosmetics, helping to dissolve active ingredients and keep the skin moisturized. In the pharmaceutical industry, it can also be used as a solvent or intermediate in the synthesis of certain drugs.

●In Chemical Synthesis: When using BDO in chemical reactions, accurately control reaction parameters such as temperature, pressure, and reaction time according to the reaction requirements. Ensure that the reaction system is clean and dry to avoid adverse effects of impurities and moisture on the reaction. After the reaction, adopt appropriate separation and purification methods to obtain high - quality products and recycle unreacted BDO.

●In Lithium - ion Battery Electrolyte Preparation: During the preparation of electrolytes, strictly control the proportion of BDO and other components. Ensure that the raw materials are of high purity to avoid affecting the performance of the electrolyte. Pay attention to the moisture content in the system, as moisture can react with lithium salts and affect the battery's performance.

●In Polyurethane Production: Accurately measure the amount of BDO and other raw materials according to the formulation. Ensure thorough mixing of all components to achieve a uniform reaction. Control the reaction conditions precisely to obtain polyurethane products with the desired performance. After the reaction, carry out post - processing operations such as curing and shaping according to the product requirements.

●Packaging: Commonly packaged in 200 - liter steel drums or large - volume intermediate bulk containers (IBCs). For large - scale industrial transportation, it can also be transported in tank trucks. The packaging containers should be tightly sealed to prevent leakage and moisture absorption.

●Storage: Store in a cool, dry, and well - ventilated warehouse, away from open flames, heat sources, and strong oxidizing agents. Keep the storage environment clean to avoid contamination. The storage temperature should be maintained within the appropriate range (usually below 30°C). Regularly check the storage status of BDO to ensure its quality and safety.

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