Sodium Metabisulfite, commonly known by its chemical formula Na2S2O5, is a versatile inorganic compound widely used across various industries due to its remarkable properties. This compound, identified by the CAS number 7681-57-4, appears as a white or yellowish crystalline powder, making it easily recognizable in both laboratory and industrial settings. Its distinct physical appearance combined with its functional characteristics makes Sodium Metabisulfite an essential chemical in numerous applications.
One of the defining physical properties of Sodium Metabisulfite is its melting point, which is approximately 150 °C. However, it is important to note that the compound decomposes at this temperature rather than melting cleanly, a factor that must be considered during handling and processing. This thermal behavior influences how the compound is stored and used, especially in processes requiring controlled temperature conditions.
In terms of packaging and transportation, Sodium Metabisulfite is securely packed in plastic woven bags with a PE liner. This packaging method ensures the chemical’s stability and prevents contamination or moisture ingress, which could compromise its quality and effectiveness. The robust packaging also facilitates safe transport and handling, minimizing risks associated with spillage or exposure during transit.
Sodium Metabisulfite is designated as an irritant to the eyes, respiratory system, and skin. This hazard classification underscores the necessity for appropriate safety measures when working with the compound. Exposure can cause irritation, and in some cases, more severe reactions depending on the concentration and duration of contact. Therefore, the use of personal protective equipment such as gloves, goggles, and masks is strongly recommended to prevent adverse health effects.
The chemical’s CAS number 7681-57-4 is a unique identifier that ensures precise recognition in regulatory, commercial, and scientific contexts. This number is widely used for documentation, labeling, and compliance with safety standards globally. It guarantees that users and handlers are referring to the exact compound, thereby reducing the risk of errors or misidentification.
|
Item |
Standard request |
|
Apprance |
White or yellow powder |
|
Na2S2O5 % ≥ |
96.5 |
|
SO2 % ≥ |
65 |
|
Fe % ≤ |
0.003 |
|
As % ≤ |
0.0001 |
|
Pb % ≤ |
0.002 |
|
Water Insoluble %≤ |
0.05 |
|
PH |
4.0-4.6 |
In the food industry, Sodium Metabisulfite (Na2S2O5) is commonly used as a preservative and antioxidant to extend the shelf life of dried fruits, beverages, and processed foods. Its ability to inhibit microbial growth and prevent oxidation makes it essential in maintaining product quality and freshness. Food grade SMBS is carefully processed to meet safety standards, ensuring it is safe for human consumption when used within regulated limits.
In industrial applications, Sodium Metabisulfite serves as a reducing agent and an oxygen scavenger in water treatment plants, helping to control chlorine levels and protect equipment from corrosion. It is also utilized in the textile industry for bleaching and in the photographic industry as a fixing agent. The industrial grade SMBS offers reliable performance in these processes, supporting efficient and cost-effective operations.
Moreover, Sodium Metabisulfite plays a critical role in chemical manufacturing, where it is used in the synthesis of various chemicals. Its precise chemical properties allow it to act as a stabilizer and reactant in numerous formulations.
When handling SMBS, it is important to note that it is an irritant to the eyes, respiratory system, and skin. Proper safety measures, including the use of protective gear and adequate ventilation, should be observed to minimize exposure risks during storage, transportation, and application.
Our Sodium Metabisulfite (Na2S2O5), also known as SMBS, is sourced directly from China, ensuring high-quality standards and reliability. We offer both Food Grade and Industrial Grade options to meet your specific needs. The product comes with ISO certification, guaranteeing its quality and safety. The granularity of our Sodium Metabisulfite is finely controlled within 80-100 mesh, suitable for various industrial applications. With a minimum order quantity of 5 tons, we cater to bulk requirements efficiently. The CAS number for Sodium Metabisulfite is 7681-57-4, confirming its authenticity and compliance with international standards. Customize your order with us to get the best Na2S2O5 product tailored to your business demands.
