Product Description
Sodium metabisulfite is a chemical compound with the formula Na2S2O5. It is commonly used as a food preservative, antioxidant, and disinfectant.
Here are some key properties and uses of sodium metabisulfite:
1. Chemical Structure: The compound consists of sodium ions (Na+) and the metabisulfite ion (S2O52-).
2. Appearance: It is typically found as a white or yellowish crystalline powder.
3. Solubility: Sodium metabisulfite is soluble in water. When dissolved in water, it releases sulfur dioxide (SO2), which contributes to its antimicrobial properties.
4. Antioxidant and Preservative: It is often used in the food and beverage industry as a preservative and antioxidant to extend the shelf life of products. It helps prevent the oxidation of certain compounds, thereby maintaining the color, flavor, and quality of food.
5. Wine and Be er Production: Sodium metabisulfite is commonly used in the production of wine and be er to sterilize equipment, prevent spoilage, and inhibit the growth of unwanted microorganisms.
6. Photography: In the field of photography, sodium metabisulfite is used as a developing agent and a fixing agent in the development of photographic films.
7. Water Treatment: It is employed in water treatment processes to remove excess chlorine and chloramine, which are often used as disinfectants in municipal water supplies.
8. Textile Industry: Sodium metabisulfite is used in the textile industry as a reducing agent in dyeing and printing processes.
9. Analytical Chemistry: In laboratory settings, it can be used as a reducing agent and sulfur dioxide source in certain chemical reactions.
10. Caution: While sodium metabisulfite is generally recognized as safe (GRAS) when used in accordance with food safety regulations, it can cause allergic reactions in some individuals. Additionally, prolonged exposure or inhalation of its dust may cause respiratory irritation in sensitive individuals.
FAQs of Sodium Metabisulphite AR:
Q: What is the molecular formula of Sodium Metabisulphite AR?
A: The molecular formula of Sodium Metabisulphite AR is Na2S2O5.
Q: What is the physical form of Sodium Metabisulphite AR?
A: Sodium Metabisulphite AR is in powder form.
Q: What is the shelf life of Sodium Metabisulphite AR?
A: The shelf life of Sodium Metabisulphite AR is 5 years.
Q: What is the grade of Sodium Metabisulphite AR?
A: Sodium Metabisulphite AR is of technical grade.
Q: Is Sodium Metabisulphite AR poisonous?
A: No, Sodium Metabisulphite AR is not poisonous.