Products Preservatives can be found in liquid, semi-solid and solid pharmaceuticals. They are also used for food and cosmetics. Structure and properties Preservatives belong to various chemical groups. These include, for example: Acids and their salts Benzoic acid derivatives, 4-hydroxybenzoic acid derivatives. Quaternary ammonium compounds Alcohols Phenols Preservatives can be of natural and synthetic origin. … Preservative
Products Sodium ascorbate is available as a powder in specialty stores. It is also found in some medicines in place of vitamin C. Structure and properties Sodium ascorbate (C6H7NaO6, Mr = 198.1 g/mol) is the sodium salt of ascorbic acid (vitamin C). It exists as a white to yellowish crystalline powder or crystals and is … Sodium Ascorbate
Definition On the one hand, drugs contain the active ingredients that mediate the pharmacological effects. On the other hand, they consist of excipients, which are used for the production or to support and regulate the drug effect. Placebos, which consist only of excipients and contain no active ingredients, are an exception. Excipients can be of … Auxiliary Materials
Structure and properties Nitrite curing salt is a mixture of the following two components: 1. common table salt: Na+Cl– 2. sodium nitrite: Na+NO2–, E 250 Sodium nitrite is the sodium salt of nitrous acid. It is present as a colorless to yellowish crystalline powder. Sodium nitrite is hygroscopic and slightly soluble in water. Caution: the … Nitrite Curing Salt
Products Vitamin C is commercially available in the form of tablets, lozenges, effervescent tablets, sustained-release capsules, as a solution for injection, and as a powder, among others. Vitamin C is available as an open product in pharmacies and drugstores. It is also combined fixed with other active ingredients, for example with iron, acetylsalicylic acid, vitamins … Vitamin C
Products Numerous active ingredients and pharmaceutical excipients are present in drugs as salts. They are also present in dietary supplements, in foods, medical devices and cosmetics. Various salts are available as open goods in pharmacies and drugstores. Structure Salts consist of positively and negatively charged atoms or compounds, that is, cations and anions. Together they … Salts
