12 Sulfurous Acid Manufacturers in 2024
This section provides an overview for sulfurous acid as well as their applications and principles. Also, please take a look at the list of 12 sulfurous acid manufacturers and their company rankings. Here are the top-ranked sulfurous acid companies as of April, 2024: 1.Spectrum Chemical Mfg. Corp., 2.Kakdiya Chemicals, 3.KANTO CHEMICAL CO.,INC..
Table of Contents
What Is Sulfurous Acid?
Sulfurous acid, with the chemical formula H2SO3, is believed to exist in aqueous solutions of sulfur dioxide. It belongs to the oxoacids of sulfur, having a CAS number of 7782-99-2. Although the free acid is unstable and cannot be isolated, it is often referred to in solutions where the sulfite ion HSO3- predominates.
Sulfurous acid is commonly found in its aqueous form, and sulfur dioxide gas is sometimes referred to as sulfurous acid gas.
Uses of Sulfurous Acid
Sulfurous acid and sulfur dioxide serve as reducing and bleaching agents. They find applications as food additives, preservatives in dried fruits and liquors, antioxidants, and bleaching agents. Additionally, their uses extend to disinfectants in food processing, agricultural fumigants, insecticides, antiseptics, and preservatives for fruits and vegetables. They are also employed as bleaching agents in the paper, textiles, straw, gelatin, glue, and sugar industries.
Properties of Sulfurous Acid
Figure 1. Basic Information on Sulfurous Acid
Sulfurous acid, when mixed with water, creates a clear, colorless liquid with a density of 1.03 g/mL. It has a pungent odor and is miscible with water and ethanol.
Types of Sulfurous Acid
1. Aqueous Sulfurous Acid
Aqueous sulfurous acid is available as a reagent for research and development, typically used as a general analysis reagent and reducing agent. It is available in various volumes, with sulfur dioxide concentrations usually around 5% or 6%. Due to its strong odor, it should be handled in well-ventilated areas.
2. Sulfurous Acid Gas
Sulfur dioxide gas, referred to as sulfurous acid gas, is used as a bleaching and reducing agent in metal production and chemical manufacturing. It is typically stored under high pressure as a liquefied gas and requires careful handling.
Other Information on Sulfurous Acid
1. Equilibrium of Aqueous Sulfurous Acid
Figure 2. Equilibrium of Aqueous Sulfurous Acid
In aqueous solutions, sulfurous acid is believed to be in equilibrium with its ions, transitioning between hydrogen sulfurous acid ions and their dimerized structures, and further reacting with oxygen to form sulfate ions.
2. Physical Hazards of Sulfurous Acid
Sulfurous acid and sulfur dioxide can be hazardous; heating can increase pressure, posing a rupture risk. They react violently with various substances, including ammonia and chlorine, and can corrode materials upon contact with water or steam.
3. Human Health Hazards of Sulfurous Acid
Figure 3. Human Health Hazards of Sulfurous Acid
Sulfurous acid poses several health risks, including serious skin burns, eye damage, inhalation hazards, and potential organ damage with prolonged exposure. Its GHS classification includes acute toxicity, skin corrosion, and specific target organ toxicity.
4. Regulatory Information on Sulfurous Acid
Due to its hazardous nature, sulfurous acid is regulated under various safety laws. Proper handling in compliance with regulatory requirements is essential.
List of 12 Sulfurous Acid Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- India
- Japan
- United Kingdom
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Spectrum Chemical Mfg. Corp.
Sulfurous Acid
Manufacturer Overview
Spectrum Chemical MFG Corp. was founded in 1971, is headquartered in New Brunswick, New Jersey, and has facilities in Gardena, California. Spectrum is a fine chemical manufacturing company with an emphasis on USP, NF, FCC, BP, EP, JP, and ACS grade products, and is ISO 9001:2015 certified. Spectrum primarily serves the analytical, biopharmaceutical, food & beverage, personal care, and pharmaceutical chemicals industries. Spectrum has 4 product segments which are chemicals, equipment, supplies, and safety.
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BEANTOWN CHEMICAL
Sulfurous Acid
Company Overview
BeanTown Chemical corporation, a company founded in 2013 and headquartered in Hudson, NH, is a manufacturer and distributor of a line of specialty chemicals including organics, inorganics, and metals. The company offers over 7000 products that are primarily used for research and development in the pharmaceutical industry, chemical industry, government institutions and academia. These products are offered in pre-packaged catalogue sizes and in semi-bulk and bulk quantities. BTC has significant experience with custom synthesis and offers special packaging services in dozens of different configurations.
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KANTO CHEMICAL CO.,INC.
Sulfurous acid solution
Manufacturer Overview
Kanto Chemical Co. Inc., founded in 1944 and headquartered in Tokyo, Japan, is a reagent manufacturer with overseas affiliates in other countries, including China, France, USA, Taiwan, and Malaysia. Its product portfolio includes analytical reagents, ionic liquids, Iodine compounds, ultra-pure chemicals, and water analysis kits. The company is also developing regenerative medicine and genetics reagents and has over 50,000 products. It has several certifications, including ISO 9001, acquired in 1994, making it the first Japanese company in the reagent industry. Other certifications are ISO 14001, ISO 13485, and ISO/IEC 17025.
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Kakdiya Chemicals
Sulfuric Acid
Manufacturer Overview
Kakdiya Chemicals, established in 1998, based in Ankleshwar, Gujarat, India, is a manufacturer and supplier of chemical products. The company supplies various chemicals, including acetic acids, ferric chloride, calcium hypochlorite, hydrogen peroxide, and industrial salts, among others. Industries served include composition and pH components, storage stability, efficiency, shelf life, and formulation of chemicals. The company has a strong base in the African continent. The company also provides services in the USA, UK, Denmark, Netherlands, and Spain, among others.
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Aarti Industries Limited
Sulfuric Acid
Manufacturer Overview
Aarti Industries Limited (AIL) is a global manufacturer of speciality chemicals and pharmaceuticals based in India. They were founded in 1984 and provide services to the chemical industry's 700+ domestic clients as well as 400+ international clients. Chemical products produced by Aarti Industries are used in the production of pharmaceuticals, agrochemicals, polymers, additives, and dyes. They started out as an Indian company serving international markets and now they are a worldwide organization with manufacturing facilities in India.
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MilliporeSigma
Sulfur dioxide solution
Manufacturer Overview
Millipore Sigma, formerly known as Sigma-Aldrich, was created in 175 through the merger of Sigma Chemical Company and Aldrich Chemical company and today is a subsidiary of Merck. Millipore Sigma is a life science and biotechnology company serving the industry with several products and services. Some of their product categories include peptide synthesis materials, biochemicals, building blocks, catalysts, chemical biology, chemical synthesis, flavors & fragrances, formulation, lab chemicals, lab safety, APIs, and stable isotopes. Services include characterization, contract manufacturing, custom products, software, support, testing, and mRNA development & manufacturing.
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Feralco Ltd
Sulfurous Acid
Manufacturer Overview
Feralco Ltd is based in Selby, North Yorkshire, and is a British manufacturer of flocculants and coagulants established in 2002 as a subsidiary of Sweden’s Feralco Group. The company’s product lineup includes coagulants for industrial water treatment such as polyaluminium chloride, coagulants for sludge treatment such as ferric chloride, and flocculants for solid-liquid separation processes such as polyelectrolytes. The company’s products are commonly used in municipal wastewater treatment, environmental remediation, and chemical processing operations.
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GFS Chemicals, Inc.
Sulfurous Acid
Manufacturer Overview
GFS Chemicals was founded in 1928 and is based in Columbus, Ohio. GFS Chemicals is an ISO 9001:2015 certified manufacturer as well as a supplier of specialty and fine chemicals, serving customers worldwide. GFS serves an array of industries including pharmaceutical, electronics, energy, fragrances, agrichemical, and specialty polymers. GFS Chemicals supplies over 8,600 chemicals in the United States, available in both small and large quantities. GFS Chemicals also offers Karl Fischer reagents, PPT/PPB trace analysis grade acids, turbidity standards, and other high-quality materials.
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Merck
Sulfurous Acid
Manufacturer Overview
Merck, started in 1668 and based in Darmstadt, Germany, is a supplier of solutions and services for research, development, and manufacture of pharmaceutical and biotechnological drug therapies. The company serves the life science industry and has a broad portfolio of 300,000 products, including biopharmaceutical manufacturing, industrial microbiology, reagent, life science research, and water purification products. It is available in 66 countries, brings together six brands, and has several ISO certifications, including ISO 13485, ISO 14001, ISO 13485, and ISO 50001.
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Alfa Aesar, Thermo Fisher Scientific.
Sulfurous Acid
Company Overview
Alfa Aesar is based in Lancashire, United Kingdom. Alfa Aesar is part of Thermo Fisher Scientific, is a manufacturer and supplier of chemicals, metals, and life science products for research and development. Alfa Aesar’s product lines include chemicals, life science, materials & metals, catalysts, and analytical & lab ware. Chemical offerings include inorganic compounds, organic compounds, organometallic, and solvents. Life sciences include biotechnology products, cellular & molecular biology, genomics, and immunology. Materials & metal include alloys, carbon, etchants, and more. Catalysts include ferrocenes, fuel cell products, and precious metals & catalysts. Alfa Aesar also offers custom manufacturing options.
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BOC Sciences
Sulfurous Acid
Company Overview
BOC Sciences is headquartered in Shirley, New York as a brand of BOCSCI Inc. The company is a developer, manufacturer, marketer, and distributor of premium chemicals, emphasizing small molecule synthesis, biosynthesis, purification, and characterization used in academia, pharmaceuticals, biotech, CDMO, material sciences, and agriculture industries, supporting research and production. The company’s products include thousands of inhibitors, nucleotides, metabolites, and isotope-labeled products. The company offers custom synthesis and manufacturing, analytical services, antibody-drug conjugate development, and strain engineering and fermentation services.
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Otto Chemie Pvt. Ltd
Sulfurous Acid
Distributor Overview
Founded in Mumbai, India in 2006, Otto Chemie Pvt. Ltd. is an ISO 9001:2015 & GMP certified chemical manufacturing company and distributor. Otto Chemie serves customers in many industries including agriculture and food processing, pharmaceuticals, oil & gas, cement, as well as educational and R&D industries. Product offerings include antibiotics, amino acids, vitamins, detergents, ionic liquids, materials science compounds, labware, oil, metal & ceramic science compounds and tools, oils, reagents, solvents.
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Sulfurous Acid Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Spectrum Chemical Mfg. Corp. |
31.6%
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| 2 | Kakdiya Chemicals |
26.3%
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| 3 | KANTO CHEMICAL CO.,INC. |
21.1%
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| 4 | Feralco Ltd |
15.8%
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| 5 | Aarti Industries Limited |
5.3%
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Derivation Method
The ranking is calculated based on the click share within the sulfurous acid page as of April 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- KANTO CHEMICAL CO.,INC.: 1,062
Newly Established Company
- BEANTOWN CHEMICAL: 2013 (11 years ago)
- Feralco Ltd: 2001 (23 years ago)
- Kakdiya Chemicals: 1998 (26 years ago)
Company with a History
- GFS Chemicals, Inc.: 1928 (96 years ago)
- KANTO CHEMICAL CO.,INC.: 1944 (80 years ago)
- Spectrum Chemical Mfg. Corp.: 1971 (53 years ago)
Sulfurous Acid Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Sulfurous Acid Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
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India
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3 | 42.9% |
United States of America
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2 | 28.6% |
Japan
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1 | 14.3% |
United Kingdom
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1 | 14.3% |
List of Sulfurous Acid Products
1 product is listed.
SUMITOMO SEIKA CHEMICALS CO.,LTD.
Function Material Gas Chemical SO2 Sulfide gas
■ content ・ In industrial raw material gas ・ CAS No. 7446-09-5 ■ Use ・ For glass surface treatment ・ For fibrous decomposition
