Sodium metabisulphate, 500 gm

Sodium metabisulfite is an inorganic compound with the formula Na2S2O5. It is also known as sodium pyrosulfite and sodium disulfite. It is a white, odorless, crystalline powder that is soluble in water. Sodium metabisulfite is used as a preservative, antioxidant, and disinfectant.

Preservative

Sodium metabisulfite is used to preserve food and beverages. It prevents the growth of bacteria, yeast, and molds. It is used in a variety of foods, including wine, beer, fruit juices, pickles, and salad dressings.

Antioxidant

Sodium metabisulfite is used as an antioxidant to prevent the oxidation of food and beverages. Oxidation can cause food to discolor, lose flavor, and become rancid. Sodium metabisulfite is used in a variety of foods, including dried fruits, nuts, and frozen foods.

Disinfectant

Sodium metabisulfite is used as a disinfectant to kill bacteria and other microorganisms. It is used to disinfect surfaces, equipment, and water. Sodium metabisulfite is also used in swimming pools and hot tubs to prevent the growth of algae and bacteria.

Other uses

Sodium metabisulfite is also used in a variety of other applications, including:

• Photography: Sodium metabisulfite is used to develop black-and-white film.
• Textiles: Sodium metabisulfite is used to bleach and dye textiles.
• Papermaking: Sodium metabisulfite is used to bleach and age paper.
• Leather tanning: Sodium metabisulfite is used to tan leather.
• Pharmaceuticals: Sodium metabisulfite is used as an excipient in some medications.

Sodium metabisulfite is generally safe when used in food and beverages. However, it can cause allergic reactions in some people. It is also important to note that sodium metabisulfite can interact with certain medications, so it is important to talk to your doctor before taking it.

Here are some safety precautions to take when using sodium metabisulfite:

• Wear gloves and eye protection when handling sodium metabisulfite.
• Avoid breathing in the dust.
• Keep sodium metabisulfite away from heat and moisture.
• Store sodium metabisulfite in a cool, dry place.