Sodium Formaldehyde Sulfoxylate (SFS) is a water-soluble reducing agent widely used in the textile, dyeing, printing, rubber, polymer, paper, chemical, and industrial processing industries. It is particularly valued for its strong reducing action and is commonly used in textile processing as a discharge agent and reducing agent.
As a reliable Sodium Formaldehyde Sulfoxylate manufacturer and supplier in India, we offer SFS in consistent quality for industrial applications, bulk supply, and export requirements.
General Specification
| Parameter | Specification | Result |
|---|---|---|
| Appearance | White crystalline powder | White crystalline powder |
| Assay | 98.0 – 100.0% | 99.10% |
| Sodium Formaldehyde Sulfoxylate Content | NLT 98.0% | 99.10% |
| Solubility in Water | Freely soluble | Complies |
| pH (5% Aqueous Solution) | 6.0 – 8.0 | 7.10 |
| Moisture | 10.0 – 15.0% | 12.20% |
| Sulphite / Sulphate | NMT 1.0% | 0.40% |
| Water Insoluble Matter | NMT 0.10% | 0.03% |
| Iron (Fe) | NMT 20 ppm | 8 ppm |
| Heavy Metals | NMT 20 ppm | 10 ppm |
Specifications may vary according to grade and manufacturing process. Batch-specific COA and detailed technical specifications are available on request. For more detailed specification and technical data please Contact Us.
Technical Specification
| Parameter | Details |
|---|---|
| Product Name | Sodium Formaldehyde Sulfoxylate |
| Other Names | Sodium Hydroxymethanesulfinate, Rongalite, Rongalit |
| Chemical Formula | CH₃NaO₃S·2H₂O |
| Molecular Weight | 154.12 g/mol |
| CAS Number | 149-44-0 |
| Chemical Class | Sulfoxylate / Reducing Agent |
| Appearance | White crystalline powder |
| Odor | Characteristic / slight odor |
| Solubility | Soluble in water |
| Nature | Reducing agent |
Available Grades
We manufacture and supply:
- Sodium Formaldehyde Sulfoxylate 98%
- Sodium Formaldehyde Sulfoxylate Dihydrate
- Industrial Grade SFS
- Textile Grade SFS
Applications
Textile Industry
Sodium Formaldehyde Sulfoxylate is widely used as a reducing and discharge agent in textile processing.
Applications include:
- Discharge printing
- Textile dyeing
- Color stripping
- Dye reduction
- Reduction cleaning
- Denim processing
- Textile printing
It can help remove or reduce certain dyes from fabrics under appropriate processing conditions.
Dye & Pigment Industry
Used as a reducing agent in:
- Dye manufacturing
- Pigment processing
- Color correction
- Reduction processes
- Specialty chemical synthesis
Rubber & Polymer Industry
Sodium Formaldehyde Sulfoxylate is used in selected polymer and rubber-processing applications where controlled reducing conditions are required.
Paper Industry
Used in certain specialty paper-processing and chemical treatment processes.
Chemical Industry
Used as a reducing agent and chemical intermediate in selected industrial synthesis and processing applications.
Advantages
- Strong reducing action
- Highly water soluble
- Suitable for textile discharge applications
- Useful in dye and pigment processing
- Consistent industrial performance
- Available in high-purity grades
- Suitable for bulk industrial applications
- Easy incorporation into aqueous processing systems
Packaging Details
Available in:
- 25 kg HDPE bags with inner liner
- 50 kg bags
- 500 kg / 1000 kg jumbo bags
- Customized export packaging available
Packaging can be selected according to quantity, destination, and customer requirements.
Storage Conditions
- Store in a cool, dry and well-ventilated area.
- Keep the container tightly closed.
- Protect from moisture and direct sunlight.
- Avoid prolonged exposure to heat and humidity.
Handling Precautions
- Avoid inhalation of powder.
- Avoid direct contact with eyes and skin.
- Wear suitable gloves and protective eyewear.
- Maintain adequate ventilation during handling.
- Follow the product-specific SDS/MSDS for handling and storage requirements.
Why Choose Us?
- Reliable Sodium Formaldehyde Sulfoxylate supplier in India
- Bulk supply capability
- Consistent purity and quality
- Competitive bulk pricing
- MSDS/SDS and TDS support
- Reliable global shipping support
FAQs
What is Sodium Formaldehyde Sulfoxylate used for?
Sodium Formaldehyde Sulfoxylate is primarily used as a reducing agent in textile dyeing and discharge printing. It is also used in dye, pigment, rubber, polymer, paper, and chemical processing.
What is the CAS number of Sodium Formaldehyde Sulfoxylate?
The CAS number of Sodium Formaldehyde Sulfoxylate is 149-44-0.
What is the chemical formula of Sodium Formaldehyde Sulfoxylate?
Commercial Sodium Formaldehyde Sulfoxylate is commonly supplied as the dihydrate, with the formula CH₃NaO₃S·2H₂O.
What is Sodium Formaldehyde Sulfoxylate also called?
It is also known as Rongalite, Rongalit, Sodium Hydroxymethanesulfinate, and SFS.
Is Sodium Formaldehyde Sulfoxylate soluble in water?
Yes. Sodium Formaldehyde Sulfoxylate is readily soluble in water, making it suitable for aqueous textile and chemical-processing applications.
Is Sodium Formaldehyde Sulfoxylate used in textile printing?
Yes. It is widely used as a reducing agent and discharge agent in textile printing, particularly for removing or reducing selected dyes from fabrics.
What is Rongalite?
Rongalite is a commonly used commercial name for Sodium Formaldehyde Sulfoxylate. It is a water-soluble reducing agent used extensively in textile and industrial applications.
What is Sodium Formaldehyde Sulfoxylate 98%?
Sodium Formaldehyde Sulfoxylate 98% refers to a grade containing approximately 98% or higher active SFS, subject to the applicable product specification and test method.
Which industries use Sodium Formaldehyde Sulfoxylate?
It is used in the textile, dye and pigment, rubber, polymer, paper, and chemical industries.
Do you supply Sodium Formaldehyde Sulfoxylate in bulk?
Yes. We supply bulk Sodium Formaldehyde Sulfoxylate in bags, drums, and customized bulk packaging for industrial and export requirements.
Do you provide COA and MSDS for Sodium Formaldehyde Sulfoxylate?
Yes. Batch-specific COA, MSDS/SDS and technical documentation can be provided for supplied material.
What is the difference between Sodium Formaldehyde Sulfoxylate and Sodium Metabisulfite?
They are different reducing chemicals with different chemical compositions and reduction characteristics. Sodium Formaldehyde Sulfoxylate is particularly valued for applications requiring a strong reducing/discharge effect, including textile processing.
How should Sodium Formaldehyde Sulfoxylate be stored?
It should be kept tightly closed in a cool, dry place, protected from moisture, heat, direct sunlight, and incompatible oxidizing substances.
