Sodium Metabisulfite, identified by the CAS number 7681-57-4, is a versatile chemical compound widely used across various industries due to its excellent properties as a preservative, antioxidant, and disinfectant. This compound is a white, crystalline powder that typically comes in a granularity of 80-100 mesh, ensuring a fine consistency suitable for diverse applications. Sodium Metabisulfite is well-known for its effectiveness in preventing oxidation and spoilage, making it an essential additive in food preservation, water treatment, photography, and chemical manufacturing.
The physical properties of Sodium Metabisulfite include a melting point of approximately 150 °C, at which it decomposes rather than melts, reflecting its chemical stability under standard conditions. This characteristic makes it particularly useful in processes that require thermal resistance up to moderate temperatures. The compound’s granular form, ranging between 80 to 100 mesh, facilitates easy dissolution and uniform distribution in liquid or solid mixtures, enhancing its functional performance in industrial and commercial uses.
One of the primary identifiers of Sodium Metabisulfite is its CAS number 7681-57-4, which is universally recognized and used for regulatory, safety, and quality control purposes. This unique chemical identifier ensures that the product is consistently produced and supplied according to international standards, maintaining high purity and reliability. Industries rely on this CAS number to verify the authenticity and compliance of Sodium Metabisulfite in their supply chains.
When it comes to packaging and transportation, Sodium Metabisulfite is securely packed in plastic woven bags with a PE liner. This packaging style is designed to protect the chemical from moisture, contamination, and external environmental factors during transit and storage. The robust packaging ensures the integrity and quality of Sodium Metabisulfite are preserved from the manufacturer to the end user, enabling safe handling and efficient logistics management.
Sodium Metabisulfite’s applications are diverse and critical. In the food industry, it acts as a preservative and antioxidant, helping to extend the shelf life of dried fruits, beverages, and processed foods by preventing discoloration and microbial growth. In water treatment, it serves as a dechlorinating agent, neutralizing excess chlorine to make water safe for discharge or further use. Additionally, it is employed in the photographic industry as a reducing agent in film developing processes. The chemical also finds use in the textile and leather industries for bleaching and as a reducing agent in dyeing processes.
Safety and handling of Sodium Metabisulfite are paramount due to its chemical nature. While it is highly effective and useful, appropriate measures should be taken to avoid inhalation or contact with skin and eyes, as it may cause irritation. Proper storage in sealed, moisture-proof packaging, like the plastic woven bags with PE liners, helps mitigate these risks and ensures the chemical remains stable and effective throughout its shelf life.
|
Item |
Standard request |
|
Apprance |
White or yellow powder |
|
Na2S2O5 % ≥ |
96.5 |
|
Fe % ≤ |
0.003 |
|
Clarity |
Pass the test |
|
As % ≤ |
0.0001 |
|
Pb % ≤ |
0.0005 |
|
Water Insoluble %≤ |
0.05 |
|
PH |
4.0-4.6 |
In the food industry, Sodium Metabisulfite is extensively used as a preservative and antioxidant to prevent oxidation and spoilage of food products. It helps retain the freshness and color of dried fruits, beverages, and seafood. Its food grade quality ensures the safety and compliance required for consumable products, making it essential in food processing plants and packaging facilities.
In water treatment applications, SMBS plays a critical role in removing excess chlorine and chloramine from water, making it safe for industrial and municipal use. Its effective dechlorination properties are vital in maintaining water quality and protecting equipment from corrosion.
The textile and paper industries utilize Sodium Metabisulfite as a bleaching agent and reducing agent. Its ability to break down dye molecules and assist in the bleaching process enhances fabric quality and paper whiteness, improving end-product aesthetics and performance.
Furthermore, SMBS is used in the chemical manufacturing sector as a reducing agent and preservative in various chemical reactions and formulations. Its industrial grade quality meets the stringent demands of chemical synthesis and processing plants.
Our Sodium Metabisulfite (SMBS) product, with CAS 7681-57-4, originates from CHINA and is certified under ISO standards. We offer product customization services to meet your specific requirements, with a minimum order quantity of 5 tons. The product is packaged securely in plastic woven bags with PE liners to ensure safe transportation. Sodium Metabisulfite appears as a white or yellowish crystalline powder and is classified as a non-hazardous chemical; however, it is an irritant to the eyes, respiratory system, and skin. Contact us to customize your SMBS orders according to your needs.
