Application
The Application Manufacturer!
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.
Povidone-Iodine
Trade Name: Povidone -I
INCI/CTFA Name: Povidone-Iodine
Chemical Name: Complex of Polyvinylpyrrolidone and Iodine
Synonymous Names:PVP-Iodine, Iodophor, Polyvinylpyrrolidone Iodide, Polyvinylpyrrolidone-Iodine Complex, PVP-I
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PVPI |
CP2010 |
USP36 |
EP7.5 |
|
Appearance |
Free-flowing reddish-brown powder |
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|
Identification |
The aqueous solution is light brown |
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|
Available Iodine % |
9.0-12.0 |
9.0-12.0 |
9.0-12.0 |
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Iodine % max. |
6.6 |
6.6 |
6 |
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Heavy Metals ppm max. |
20 |
20 |
-- |
|
Ash % max. |
0.1 |
0.025 |
0.1 |
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Nitrogen Content % |
9.5-11.5 |
9.5-11.5 |
-- |
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PH value (10% in water) |
- |
-- |
1.5-5.0 |
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Loss on Drying % max. |
8 |
8 |
8 |
Advantages of Povidone Iodine
Broad-Spectrum Activity
Effective against a wide range of microorganisms.
Sustained Release
Provides prolonged antimicrobial activity due to controlled iodine release.
Minimal Irritation
Generally well-tolerated by most patients, with low risk of irritation or allergic reactions compared to other antiseptics.
Versatility
Available in various formulations suitable for different applications, including solutions, ointments, and surgical scrubs.
Gamma-Butyrolactone
Colorless transparent liquid with a faint characteristic odor. It has good miscibility with water, alcohols, esters, and most organic solvents. GBL is a stable compound under normal conditions, but it can react with strong acids, bases, and some reducing agents.
Main Properties
Solvency
As a polar aprotic solvent, GBL has excellent solvency for a wide range of substances, including polymers, resins, and many organic compounds. It can dissolve materials such as polyvinyl chloride, polyamide, and cellulose derivatives effectively, making it an important solvent in various industrial processes.
Reactivity
GBL can participate in many chemical reactions. For example, it can be hydrolyzed in the presence of acids or bases to form 4-hydroxybutyric acid, and it can also be used as a raw material for the synthesis of various chemicals through reactions such as amination and alkylation.
High Boiling Point and Low Volatility: With a relatively high boiling point, GBL has low volatility. This property helps to maintain the stability of the system during high-temperature processes and reduces solvent loss, which is beneficial for industrial production with continuous operations and high - temperature requirements.
Thermal Stability
It can maintain stable performance within a certain temperature range, which allows it to be applied in industrial processes that require elevated temperatures, such as in some chemical synthesis and material processing procedures.
Industrial Uses
Personal Care
PH Adjuster: Gamma-butyrolactone can be used in some cosmetic formulations as a pH adjuster to balance the acidity or alkalinity of a product, ensuring its stability and effectiveness.
Solvent: In certain personal care products,Gamma-butyrolactone is utilized as a solvent due to its ability to dissolve both polar and non-polar compounds, making it suitable for a variety of cosmetic formulations.
Chemical Synthesis
Production of 1,4-Butanediol (BDO): Gamma-butyrolactone is a precursor to 1,4-butanediol, which is used in the manufacture of plastics, elastomers, and other chemicals.
Gamma-Hydroxybutyric Acid (GHB): Gamma-butyrolactone can be converted into GHB, which, while a controlled substance in many regions, has applications in pharmaceuticals and medical treatments.
Agrochemicals
Pesticides & Herbicides: Gamma-butyrolactone serves as a solvent or intermediate in the formulation of certain agricultural chemicals.
Fabric Solutions
Solvent & Carrier: It acts as a solvent for dyes and helps in the application of colorants to fabrics and fibers.
Synthetic Fiber Production: It is involved in the production of certain synthetic fibers, such as spandex and nylon, by acting as a polymerization solvent.
Cleaning & Disinfectants
Industrial Cleaner: It is a powerful solvent for removing grease, oil, and dirt in industrial cleaning formulations. It is particularly effective in automotive and machinery cleaning products.
Disinfectant Solvent: It serves as a carrier for active ingredients in disinfectant products, ensuring effective delivery and coverage.
Paint & Coatings
Adhesive Removers: It is used in formulations for removing superglues and adhesives from surfaces without damaging the underlying material.
Paint Strippers: It is commonly used in paint and varnish removers because it can effectively break down and dissolve coatings.
Pharmaceutical
Heterocyclic Drug intermediates: Gamma-Butyrolactone is a cyclic ester used as an intermediate in the synthesis of pyrrolidines, piperidines, and lactam-based drugs. It’s a precursor for neuroactive agents and CNS-active heterocycles.