1,4-Butanediol
Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. We mainly produce and sell N-vinylpyrrolidone and downstream PVP series products. Hangzhou Weitong Nano Materials Co., Ltd. is committed to providing customers with the most suitable products in line with the enterprise spirit of "integrity, innovation, dedication and cooperation".
Advantages to choose us:
1.Free sample service:
We can provide you with free samples if you want.
2.Direct factory,competitive price:
We are the manufacturer, and we produce these products by ourselves, so there is no extra payment link in the middle. We can give you the most competitive price.
3.Quality control:
We have the ISO9001 certificate, and we strictly follow GMP production standards for production.
4.Good after-sale service:
We have a sound after-sales service system, so whatever you have any doubt about the product ,you can strictly contact us , we will give you a satisfied plan.
5. What can you get from us?
You can get excellent products (strict quality control ) ,factory direct sale (favorable and competitive price),great service( after-sales services, fast delivery)and professional business consultation.
Product Introduction
【Product introduction】
1,4-butanediol (referred to as BDO) is a colorless oily flammable liquid, which is miscible with water, soluble in methanol, ethanol, acetone, and slightly soluble in ether. Freezing point 20.1 °C, melting point 20.2 °C, boiling point 228 °C, 171 °C (13.3 kPa), 120 °C (1.33 kPa), 86 °C (0.133 kPa), relative density 1.0171 (20/4 °C), refractive index 1.4461, flash point 121 °C.
【Product features】
Hangzhou Weitong 1,4-butanediol products are made of natural gas as raw materials, using the aldehyde alkyne process of DuPont and INVISTA, with advanced technology and leading product quality in China. The production unit operated stably and reliably, and the core equipment ran continuously for a maximum of 116 days, breaking the 39-year-old record of 112 days held by DuPont.
Application
1,4-butanediol is an important basic chemical and fine chemical raw material, which has a wide range of uses.
1,4 butanediol is the main raw material for the production of tetrahydrofuran, which is an important organic solvent, and the polytetrahydrofuran (PTMEG) obtained after polymerization is the main raw material for the production of highly elastic spandex (such as lycra fiber). Spandex is mainly used in the production of high-end sportswear, swimwear and other high-elastic knitwear.
The basic raw material for the production of polybutylene terephthalate (PBT) engineering plastics and PBT fibers, PBT plastics are one of the five most promising engineering plastics and are rapidly developing engineering plastics.
1,4-butanediol is used as a chain enhancer and polyester raw material for the production of polyurethane elastomers and flexible polyurethane foams;
The esters prepared from 1,4-butanediol are good plasticizers for cellulose, polyvinyl chloride, polyacrylates and polyesters.
1,4-butanediol has good hygroscopicity and flexibility, and can be used as gelatin softener and absorbent, cellophane and other paper treatment agents.
The downstream product of 1,4-butanediol γ-butyrolactone is the raw material for the production of 2-pyrrolidone and N-methylpyrrolidone products, which derives a series of high value-added products such as vinylpyrrolidone and polyvinylpyrrolidone.
It is used in the preparation of vitamin B6, pesticides, herbicides, and as solvents, lubricants, humidifiers, softness, adhesives and brighteners for the electroplating industry in a variety of processes.
Reagent for chemical analysis, used as gas chromatography stationary liquid. used as solvent, non-toxic antifreeze, food emulsifier, hygroscopic agent, for organic synthesis. Pharmaceutical, food, cosmetics industry.
Storage conditions
【Product Packaging】
Packed in aluminum, galvanized iron drums, or stored and transported by tanker as flammable and toxic substances. Due to the freezing point of 20.1°C, the tanker should be equipped with a heating tube.
【Storage conditions】
The warehouse is ventilated and dried at low temperature, stored separately from the oxidant, and is lightly loaded and unloaded during handling to keep the packaging intact.
Product parameters
|
Item |
Measurement Unit |
Superior Product |
First Class |
|
Appearance |
Colorless, transparent liquid, no visible impurities |
||
|
1,4-butanediol |
% |
≥99.7 |
≥99.5 |
|
water |
% |
≤0.02 |
≤0.02 |
|
Chroma |
Hazen unit (platinum-cobalt, color number） |
≤5 |
≤10 |
FAQ