Sodium Metabisulfite

Sodium Metabisulfite is a powdered chemical which is formulated by treating a solution of sodium hydroxide with sulfur dioxide. It has faint So₂ odor with a solubility of 65.3 grams per 100 milliliters at a temperature of 20 degree Celsius. It is slightly corrosive and acutely toxic in nature and cause serious damages to eye. This chemistry element has a chemical formula of Na₂S₂O₅ with an average molar mass of 190.11 grams per mol. It can be used in various industries such as food, pharmaceutical, agrochemicals, cosmetics, adhesives, paints and construction.  

A: Sodium metabisulfite (Na₂S₂O₅) is a white or yellowish crystalline powder commonly used as a food preservative, antioxidant, and sanitizer. It is also used in various industries such as the wine industry, water treatment, and photography.

A: Sodium metabisulfite is used as a food preservative, antioxidant, and sanitizer. It is also used in the wine industry as a preservative, in the water treatment industry as a reducing agent, and in the photography industry as a developing agent.

A: Sodium metabisulfite is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) when used in accordance with good manufacturing practices.

A: Yes, some people may have an allergic reaction to sodium metabisulfite, especially those with asthma or sulfite sensitivity. Symptoms may include difficulty breathing, hives, and swelling of the face, lips, tongue, or throat.

A: Sodium metabisulfite is used in winemaking as a preservative and to prevent oxidation. It is added to the wine to kill bacteria and wild yeast, and to protect the wine from oxidation and spoilage. It is also used as a sterilizing agent for winery equipment and bottles.

A: Sodium metabisulfite can be hazardous if not handled properly. It can cause skin irritation, eye irritation, and respiratory irritation. Ingestion of large amounts can be harmful and may cause vomiting, diarrhea, and abdominal pain.

A: Sodium metabisulfite should be stored in a cool, dry place away from heat, moisture, and incompatible substances. It should be kept in a tightly closed container and handled with care.

A: Sodium metabisulfite is a synthetic chemical and does not contain any animal-derived ingredients. Therefore, it is generally considered vegan.