Potassium Metabisulfite (CAS 16731-55-8) is a chemical compound with a distinctive set of properties that make it invaluable across several industries. Understanding its chemical behavior is key to leveraging its full potential as an antioxidant and preservative. As a leading chemical manufacturer, we aim to provide clarity on this essential ingredient for businesses looking to purchase or utilize it.

Chemically, Potassium Metabisulfite is a disulfite salt with the molecular formula K₂S₂O₅. Its most notable characteristic is its ability to decompose in the presence of moisture or acids to release sulfur dioxide (SO₂). This controlled release of SO₂ is the basis for its efficacy as both a preservative and an antioxidant. The sulfur dioxide gas acts by inhibiting the metabolic pathways of microorganisms like bacteria, yeasts, and molds, thereby preventing spoilage. For any company looking to buy effective antimicrobial solutions, KMS is a prime candidate.

As an antioxidant, the sulfur dioxide released by Potassium Metabisulfite effectively scavenges reactive oxygen species and prevents oxidative degradation. This is crucial in industries such as food and beverage, where oxidation can lead to undesirable changes in color, flavor, and nutritional value. For instance, in winemaking, KMS is critical for preventing oxidation that can spoil the wine's character. Companies that buy KMS for these applications benefit from enhanced product stability and appeal.

The physical appearance of Potassium Metabisulfite is typically a white to slightly yellowish crystalline powder with a characteristic pungent odor, owing to the sulfur dioxide. It is soluble in water, forming acidic solutions that contribute to its reactive properties. Its decomposition temperature, around 150°C, indicates its stability under typical storage conditions, provided it is kept dry and away from acids and strong oxidants.

The applications for Potassium Metabisulfite are diverse. In the food industry, it's a common additive (E224) for dried fruits, juices, and processed foods. The pharmaceutical sector utilizes it as an excipient for its antioxidant and preservative qualities. Furthermore, it finds use in photography, as a reducing agent in chemical synthesis, and in water treatment as a de-chlorinating agent. Being a reliable supplier of this multifaceted chemical allows us to support a broad range of industrial demands.

For businesses looking to purchase Potassium Metabisulfite, understanding these chemical properties is essential for effective application. We are a trusted manufacturer and supplier dedicated to providing high-quality KMS that meets stringent industry standards. Contact us to discuss your needs and how our Potassium Metabisulfite can benefit your operations.