Chlorosulphonic Acid is a highly reactive and essential industrial chemical with diverse applications across chemical manufacturing, dyes, pharmaceuticals, and agrochemical sectors. At Maruti Fine Chemicals, we specialize in the production and supply of high-purity Chlorosulphonic Acid, also known in some contexts as Chlorosulfonic acid. With years of experience in the chemical industry, we provide reliable solutions backed by quality, consistency, and safety.
What is Chlorosulphonic Acid?
Chlorosulphonic Acid (CSA) is a strong sulfonating agent and chlorinating compound with the formula ClSO₃H. It is a colorless to pale yellow fuming liquid with a pungent odor and reacts violently with water. It plays a significant role in synthesizing sulfonic acids and is a key intermediate in many organic reactions.
This chemical is often referred to as Chlorosulfonic acid in scientific contexts. Despite the slight variation in spelling, both terms represent the same compound and are used interchangeably in industry and research.
Physical and Chemical Properties
Chlorosulphonic Acid, with the molecular formula ClSO₃H, is a fuming liquid that ranges in color from colorless to pale yellow. It has a pungent odor and a relatively high boiling point of around 152°C. With a density of approximately 1.75 g/cm³, it is considerably denser than water. It exhibits highly exothermic reactions when it comes into contact with water or organic substances, emphasizing the need for careful handling.

Applications
The industrial value of Chlorosulfonic acid lies in its ability to introduce sulfonic acid and chlorinated groups into organic molecules. Let’s explore its applications in various industries:
1. Chemical Synthesis
CSA is used to manufacture a variety of sulfonated intermediates and chlorinated compounds. Its strong reactivity makes it an ideal agent for synthesizing specialty chemicals.
2. Dye and Pigment Industry
Chlorosulphonic Acid is crucial in sulfonating dye intermediates. This enhances solubility and binding properties, making the dyes more effective and durable when used in textile and ink manufacturing.
3. Pharmaceuticals
In the pharmaceutical sector, CSA is employed in synthesizing drug intermediates. It enables the introduction of sulfonic and chlorinated functional groups necessary for the formation of various active pharmaceutical ingredients (APIs).
4. Agrochemicals
It plays an essential role in producing herbicides and pesticides by serving as a sulfonating agent in the synthesis of active compounds. CSA ensures improved bioavailability and effectiveness in agricultural products.
5. Detergents and Surfactants
CSA helps in the creation of sulfonated compounds used in detergent formulations. These compounds enhance foaming, cleaning power, and stability in diverse cleaning products.
6. Flavors and Fragrances
Chlorosulfonic acid is sometimes involved in the synthesis of aroma chemicals that serve as ingredients in perfumes and flavorings.
Safety and Handling of Chlorosulphonic Acid
Due to its highly reactive nature, especially with water, CSA must be handled with extreme caution:
1.Always use protective equipment including gloves, goggles, and face shields
2.Ensure good ventilation or use fume hoods in enclosed environments
Store in tightly sealed, corrosion-resistant containers
4.Keep away from moisture and incompatible substances such as alcohols, amines, and bases
5.Emergency showers and eye-wash stations must be nearby during handling
Storage Guidelines
Store in a cool, dry, and well-ventilated place
2.Avoid direct sunlight and temperature extremes
Ensure containers are clearly labeled and regularly inspected for leaks or damage
Our Services
We offer a comprehensive range of services to meet the dynamic needs of our clients:
1.Bulk Chemical Supply: Large-scale delivery of industrial-grade chemicals with assured quality.
2.Custom Packaging Solutions: Designed for safe handling and specific application needs.
3.Logistics and Delivery Support: Nationwide delivery network with strict compliance standards.
4.Regulatory Assistance: Guidance on compliance with safety and environmental norms.
5.Technical Consultancy: Expert advice for proper chemical usage and application.
Regulatory and Environmental Considerations
CSA is classified as a hazardous material and must be handled in compliance with local and international regulations. We ensure that our manufacturing and distribution processes align with environmental safety norms and sustainability standards.
Why Choose Us?
We are committed to delivering the highest quality chemicals, including Chlorosulfonic acid to various industries.
1.Quality Assurance: Rigorous testing and quality control to meet industrial standards
Safe Packaging: Specially designed containers to handle the reactivity of CSA
3..Reliable Supply Chain: Timely and efficient delivery to ensure uninterrupted operations
4.Technical Support: Expert guidance for storage, handling, and application of chemicals
5.Custom Solutions: Tailored formulations and packaging based on customer requirements
Frequently Asked Questions (FAQs)
Q1. What is this chemical commonly used for?
A: It is widely used in the production of dyes, detergents, pharmaceuticals, and agricultural chemicals due to its strong sulfonating and chlorinating properties.
Q4. What type of container is suitable for storage?
A: It should be stored in tightly sealed, corrosion-resistant containers made from materials specifically designed to withstand highly reactive acids.
Q5. How is it transported safely?
A: Transportation requires adherence to hazardous goods regulations, using specially designed, leak-proof containers with proper labeling and documentation.
Q8. Can this compound react with other chemicals?
A: Yes, it reacts violently with water, alcohols, amines, and certain organic substances, so it must be kept away from incompatible materials.
Conclusion
In conclusion, Chlorosulphonic Acid is a powerful and essential compound used in a wide range of industries, from pharmaceuticals to dyes and agrochemicals. Whether referred to by its alternative name Chlorosulfonic acid in scientific contexts or in industrial use, its importance cannot be overstated. Choosing a reliable source like Maruti Fine Chemicals ensures safety, purity, and consistent supply. With expertise in handling sensitive chemicals like Chlorosulfonic acid, we support industries with trusted solutions tailored to their needs.

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