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Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. Our factory has an efficient production capacity and is able to produce a wide range of high-quality products. Our factory adopts a strict quality management system to ensure that the products meet high quality standards. We have a professional technical team and advanced production equipment, as well as perfect after-sales service, to provide customers with a full range of solutions. We strive for continuous innovation and optimization to meet and exceed our customers' needs and expectations, and move forward to become a world-class chemical company.
Why choose us
Our factory
Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. Our factory has an efficient production capacity and is able to produce a wide range of high-quality products.
Our product
Our range of NVP-based products covers various series tailored to different industries. This includes the homopolymer series (K15-K120), copolymer series (VA64 powder, V64E, VA64W, 73W, 37E, 37W), and cross-linked series (PVPP XL-10, PVPP-10, povidone-iodine pvpI). These products find applications across diverse sectors, serving as stabilizers, dispersants, coatings, inks, and adhesives.
Quality control
We have the ISO9001 certificate, and we strictly follow GMP production standards for production.
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.
1,4-Butanediol
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.
|
Model |
Purity (%) |
Water Content (%) |
Acid Value (mgKOH/g) |
Hydroxyl Value (mgKOH/g) |
Main Applications |
|
Industrial Grade |
≥99.0 |
≤0.3 |
≤0.1 |
500 - 515 |
General chemical synthesis, plasticizer production, and as a solvent in common industrial processes |
|
High - Purity Grade |
≥99.9 |
≤0.1 |
≤0.05 |
508 - 512 |
High - end chemical synthesis, production of lithium - ion battery electrolytes, and pharmaceutical intermediates |
|
Electronic Grade |
≥99.95 |
≤0.05 |
≤0.03 |
510 - 513 |
Used in the production of high - performance electronic materials, such as semiconductor packaging materials and high - precision electronic component manufacturing |
Application Areas In Industry
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.
2-Pyrrolidone
Product Name
2-Pyrrolidone
CAS NO
616-45-5
Appearance
Colorless crystals
|
Index |
Requirement |
|
Content |
≥99.0% |
|
Moisture |
≤0.1% |
|
γ-Butyrolactone |
≤0.2% |
|
Amines |
≤0.2% |
|
APHA Color |
≤50 |
Food & Healthcare Ingredients
Flavor Solvent: It is utilized as a solvent for extracting and concentrating flavors and fragrances, enhancing the sensory attributes of food products.
Preservative: 2-Pyrrolidone can act as a preservative in some food products, helping to extend shelf life by inhibiting microbial growth.
Pharmaceuticals
Stabilizer for Active Ingredients: It helps stabilize sensitive pharmaceutical compounds, ensuring their efficacy and extending their shelf life.
Transdermal Delivery Systems: 2-Pyrrolidone is used in transdermal patches, enhancing the penetration of active ingredients through the skin.
Personal Care
Film-Forming Agent: In cosmetic formulations, it acts as a film-forming agent, providing a smooth finish and enhancing the longevity of products like foundations and lipsticks.
Surfactant: It can function as a surfactant in personal care products, aiding in the mixing of oil and water phases and improving product texture.
Cleaning & Disinfectants Solutions
Surfactant: It is used in cleaning formulations as a surfactant, helping to break down dirt and grease, making cleaning more effective.
Disinfectant Solvent: 2-Pyrrolidone can also serve as a solvent in disinfectant formulations, improving the solubility and effectiveness of active ingredients.
Polymers & Resins
Polymer Production: It is a precursor in the synthesis of polyvinylpyrrolidone (PVP) and other polymers, which find applications in adhesives, coatings, and pharmaceutical formulations.
Plasticizers: 2-Pyrrolidone can be used as a plasticizer in resin formulations to enhance flexibility and processability.