Naphthalene sulfonate, a vital chemical compound, plays a significant role in various industrial applications, particularly in China. As a key ingredient in detergents, dispersants, and concrete admixtures, its importance cannot be overstated. Understanding its properties, production processes, and market dynamics is essential for industry professionals and researchers alike.
This guide will delve into the chemical structure, synthesis methods, and regulatory landscape surrounding naphthalene sulfonate in China. Readers will gain insights into its applications across different sectors, including construction and textiles.
Additionally, the guide will explore the environmental implications and safety considerations associated with naphthalene sulfonate. By the end, readers will be equipped with a comprehensive understanding of this compound’s significance in the Chinese market and its broader impact on global industries.
A Comprehensive Guide to Sodium Naphthalene Sulfonate in China
Sodium Naphthalene Sulfonate (SNS) is a widely used chemical compound in the construction industry, particularly as a superplasticizer in concrete. This guide explores the various aspects of Sodium Naphthalene Sulfonate, including its technical features, types, and applications, with a focus on manufacturers and suppliers in China.
Introduction
Sodium Naphthalene Sulfonate is a high-range water-reducing agent that enhances the workability and strength of concrete. It is particularly valued for its ability to reduce water content without affecting the setting time of concrete. This makes it an essential additive in the production of high-strength concrete used in various construction projects. In China, several manufacturers, including MUHU (muhuChina.com), Chengli (www.chenglicn.com), GP Chemicals (www.gpcchem.com), and Zhenggang (www.zjzgchem.com), produce and supply this vital chemical.
Technical Features of Sodium Naphthalene Sulfonate
Sodium Naphthalene Sulfonate is characterized by several technical features that make it suitable for various applications in the construction industry. Below is a comparison table highlighting its key properties:
| Property | Specification | Actual Results |
|---|---|---|
| Appearance | Brown to yellow powder | Brown yellow powder |
| Solid Content (%) | 92 min | 93.38 |
| pH Value | 7 – 9 | 8.62 |
| Sodium Sulfate Content (%) | 5.0 max | 3.6 |
| Moisture Content (%) | 8.0 max | 7.1 |
| Surface Tension (n/m) | 68 – 72 | 71 |
| Water Reducing Rate (%) | 20 min | 21.5 |
| Addition Rate (%) | 0.75 | 0.75 |
These properties indicate that Sodium Naphthalene Sulfonate is a highly effective superplasticizer, capable of improving the fluidity and strength of concrete while maintaining its integrity.
Types of Sodium Naphthalene Sulfonate
Sodium Naphthalene Sulfonate comes in various forms, each tailored for specific applications. Below is a comparison table of the different types available in the market:
| Type | Description | Applications |
|---|---|---|
| FDN-A | High-range water reducer, naphthalene-based superplasticizer | Flowable concrete, steam-curing concrete |
| UNF-5 | Poly Naphthalene Sulfonate Formaldehyde, chloride-free admixture | High-strength concrete |
| Sodium Naphthalene Sulfonate-B | A high-range water-reducing agent with high adaptability to cement | Roads, railways, bridges, tunnels |
| Calcium Naphthalene Sulphonate | Calcium salt of Polycondensation of Naphthalene Sulfonic acid and Formaldehyde | Various concrete types |
Each type serves a unique purpose, allowing manufacturers to select the most suitable product based on their specific project requirements.
Applications of Sodium Naphthalene Sulfonate
Sodium Naphthalene Sulfonate is primarily used in the construction industry for the following applications:
- High-Strength Concrete Production: It significantly reduces water content, allowing for the production of high-strength concrete that meets stringent specifications.
- Improved Workability: The addition of SNS enhances the workability of concrete, making it easier to mix, transport, and place.
- Durability Enhancement: It improves the durability of concrete by reducing permeability and increasing resistance to environmental factors.
- Compatibility with Other Admixtures: Sodium Naphthalene Sulfonate can be used in conjunction with other chemical admixtures, such as air-entraining agents and expanding admixtures, to achieve desired performance characteristics.
Manufacturers and Suppliers in China
China is home to several reputable manufacturers and suppliers of Sodium Naphthalene Sulfonate. Notable companies include:
– MUHU (muhuChina.com): A leading manufacturer specializing in concrete admixtures, MUHU offers a range of Sodium Naphthalene Sulfonate products tailored for various applications.
– Chengli (www.chenglicn.com): Known for its commitment to quality and innovation, Chengli provides high-quality Sodium Naphthalene Sulfonate and other construction chemicals.
– GP Chemicals (www.gpcchem.com): This company focuses on producing high-performance chemical products, including Sodium Naphthalene Sulfonate, for the construction industry.
– Zhenggang (www.zjzgchem.com): With a strong emphasis on customer satisfaction, Zhenggang offers a variety of Sodium Naphthalene Sulfonate products to meet diverse construction needs.
Conclusion
Sodium Naphthalene Sulfonate is an essential component in modern concrete production, providing significant benefits in terms of workability, strength, and durability. With various types available, manufacturers can select the most suitable product for their specific applications. The presence of reputable suppliers in China, such as MUHU, Chengli, GP Chemicals, and Zhenggang, ensures that high-quality Sodium Naphthalene Sulfonate is readily available to meet the growing demands of the construction industry.
FAQs
1. What is Sodium Naphthalene Sulfonate used for?
Sodium Naphthalene Sulfonate is primarily used as a superplasticizer in concrete to improve workability and reduce water content without affecting setting time.
2. How does Sodium Naphthalene Sulfonate enhance concrete strength?
It reduces the water-cement ratio, allowing for higher strength concrete while maintaining fluidity, which leads to improved compressive strength.
3. Are there different types of Sodium Naphthalene Sulfonate?
Yes, there are several types, including FDN-A, UNF-5, and Sodium Naphthalene Sulfonate-B, each designed for specific applications in concrete production.
4. Where can I buy Sodium Naphthalene Sulfonate in China?
You can purchase Sodium Naphthalene Sulfonate from various manufacturers and suppliers in China, including MUHU, Chengli, GP Chemicals, and Zhenggang.
5. Is Sodium Naphthalene Sulfonate safe to use?
Yes, Sodium Naphthalene Sulfonate is generally considered safe when used according to manufacturer guidelines. However, it is advisable to follow safety precautions during handling.