Multi-Application SFS Chemical Sodium Formaldehyde Sulphoxylate (CAS 6035-47-8) / Rongalite (149-44-0) 99% Purity

Multi-Application SFS Chemical Sodium Formaldehyde Sulphoxylate (CAS 6035-47-8) / Rongalite (149-44-0) 99% Purity

Quality Control and Technical Specifications of Sodium Formaldehyde Sulfoxylate

Overview of Product Quality

Sodium Formaldehyde Sulfoxylate, abbreviated as SFS, is widely used in industries where consistent chemical performance is critical. To ensure reliability, manufacturers implement strict quality control procedures during production. These checks help maintain product uniformity, effectiveness, and compliance with industry standards.

Appearance and Purity

SFS is typically a white crystalline powder or granule with high purity levels. A premium-grade product usually contains more than 85 percent active content. Any discoloration or moisture absorption may indicate degradation. Consistent visual appearance is a basic indicator of proper formulation and handling.

Assay and Active Content

The most essential technical parameter for SFS is its assay value, which represents the percentage of the active sulfoxylate compound. Standard industrial specifications require a minimum active content of 85 percent. Higher-purity grades, up to 90 percent, are available for specialized applications. Regular titration tests are performed to verify assay levels.

pH Value in Solution

When dissolved in water at a concentration of 10 percent, SFS typically displays a pH value between 6.0 and 8.0. This near-neutral pH makes the product easy to use in various formulations without altering the system's chemical balance. Maintaining pH consistency is part of standard quality checks.

Moisture and Stability

Low moisture content is crucial to maintaining SFS stability. Most manufacturers control moisture levels below 2 percent. High humidity can lead to hydrolysis, reducing the product’s reducing power and causing clumping or caking. Moisture is routinely tested using drying or Karl Fischer methods.

Insoluble Matter

The presence of insoluble particles in SFS can affect its performance in sensitive processes such as printing or dyeing. Quality control involves filtration or residue testing to ensure insoluble matter is within acceptable limits, typically less than 0.05 percent.

Heavy Metals and Impurities

High-purity SFS is expected to be free of heavy metals such as lead, arsenic, or cadmium. Trace elements are monitored using atomic absorption or spectroscopic methods. This ensures the product meets safety standards for industries like textiles and electronics.

Batch Consistency and Documentation

Each production batch is tested and recorded with a batch number and technical certificate. Standard documentation includes assay value, moisture content, pH, and other key parameters. This allows traceability and consistent product performance across applications.

Compliance with Industrial Standards

SFS is produced in accordance with local and international chemical regulations. It often meets specifications outlined in textile auxiliaries standards or chemical quality indexes. Compliance ensures compatibility with global supply chains and technical applications.

Company Profile

Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special

chemical production, technology research & development, and import & export. The company focuses on 

the production, trade, and research & development of various chemical products.
 

Efficiently treating our customers as partners with sincerity, specialization and satisfaction is our managerial

principle. Attributed to the backup of a dedicated technical team, filled with wide and profound knowledge

and practice in chemicals and world trade for 20 years, the company owns rich experience in product quality

control, technical solution, chemical logistics organization, packaging optimization, port operation, etc., which

accounts for its first-class cost control management and ensures to maintain the overwhelming competitive

advantage over others. In line with the principle of sharing the preferential cost and joint development, the

company has formed an interesting community for years with its customers at home and abroad. Sincerely

to build up a pleasant mutual trust, cooperative, win-win, and value-added sustainable partnership is what

we are achieving to grow together with you!

Since its establishment, the company has been concentrating on constructing an international marketing

network and optimizing supply chain management, where we have established a long-term strategic

cooperation relationship with numerous large enterprises at home and abroad. Relying on our wide business

channels and professional experience, we are more skillfully providing products of stable but differentiated

quality, along with flexible, highly efficient & considerate service to satisfy our partner at more competitive pricing.