Maddrell's salt for food - Names and Identifiers
Maddrell's salt for food - Physico-chemical Properties
| Molecular Formula | (NaPO3)n
|
| Physical and Chemical Properties | A highly polymerized (> amp; gt; 50) polymeric long-chain polyphosphate with a composition similar to that of a metaphosphate. When, n → ∞, Nan 2 PnO3n 1 → NanPnO3n or (NaPO3)n. The average value of most n in this kind of salt is usually in the range of 500~1000. Since the molar ratio of Na2O/P2O5 is measured to be close to 1, this long-chain polyphosphate is often called metaphosphate. Later officially determined metaphosphate refers to a compound with a cyclic structure. The long-chain crystalline sodium polyphosphate salt is usually called Madeleine salt high temperature type (NaPO3-Ⅱ), Madeleine salt low temperature type (NaPO3-Ⅲ), and curoline salt (NaPO3-Ⅸ).) Three variants. White crystalline powder. Soluble in inorganic acid, potassium chloride and ammonium chloride solutions. Almost insoluble in water. The (1:3) slurry prepared in water has a Ph value of about 6.5. |
Maddrell's salt for food - Introduction
Edible sodium metaphosphate is a colorless or white crystalline powder with the chemical formula NaH2PO4. The following is a description of the nature, use, preparation and safety information of edible sodium metaphosphate:
Nature:
-Edible sodium metaphosphate is soluble in water and is an acidic solution.
-It has good stability and storability, and is not easy to be damp.
Use:
-Edible sodium metaphosphate is widely used in food processing as an acid regulator, yeast starter, phosphate source, and as an adjuvant to maintain food shelf life.
-It is often used in condiments, leavening agents, bread, pastries, meat products, dairy products and other foods, giving food soft taste, increase humidity and preservation.
Preparation Method:
-Edible sodium metaphosphate is mainly prepared by neutralization reaction between phosphoric acid and sodium hydroxide.
-Usually under controlled reaction conditions, sodium hydroxide solution is gradually added to the phosphoric acid solution to form an edible sodium metaphosphate precipitate. The precipitate is filtered, washed and dried to obtain pure edible sodium metaphosphate.
Safety Information:
-Edible sodium metaphosphate is properly tested and evaluated for food safety and is approved for use in food processing.
-In reasonable dosage, regular consumption of sodium metaphosphate will not cause harm to most human health.
-However, excessive consumption of sodium metaphosphate may have some negative health effects, such as poor absorption of minerals such as calcium and iron.
-for the existence of serious kidney disease, heart disease, high blood pressure and other diseases, intake of sodium metaphosphate to be cautious.
Last Update：2024-04-09 20:45:29