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Ascorbic acid is an organic compound with formula C 6 H 8 O 6, originally called hexuronic acid.It is a white solid, but impure samples can appear yellowish. It dissolves freely in water to give mildly acidic solutions.
The report adds: "The stability of vitamin C (L-ascorbic acid) is of concern because this is one of the most labile vitamins in foods. Its main loss during processing and storage is from oxidation, which is accelerated by light, oxygen, heat, increased pH, high moisture content (water activity), and the presence of copper or ferrous salts.
As the sodium salt of ascorbic acid, it is known as a mineral ascorbate. It has not been demonstrated to be more bioavailable than any other form of vitamin C supplement. [2] Sodium ascorbate normally provides 131 mg of sodium per 1,000 mg of ascorbic acid (1,000 mg of sodium ascorbate contains 889 mg of ascorbic acid and 111 mg of sodium).
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/(100 mL)), unless shown otherwise. The substances are listed in alphabetical order.
Citric acid – food acid; Citric acid esters of mono- and diglycerides of fatty acids – emulsifier; Citrus red 2 – color (red) Cloves – Cochineal – color (red) Coconut oil – a cooking oil, high in saturated fat – particularly used in baking and cosmetics. Sage (Salvia officinalis) – Copper complexes of chlorophylls – color ...
The literature contains many reports on the antiviral effects of vitamin C, [14] and one study suggests dehydroascorbic acid has stronger antiviral effects and a different mechanism of action than ascorbic acid. [15] Solutions in water containing ascorbic acid and copper ions and/or peroxide, resulting in rapid oxidation of ascorbic acid to ...
It is the potassium salt of ascorbic acid and a mineral ascorbate. As a food additive, it has E number E303, INS number 303. Although it is not a permitted food additive in the UK, USA and the EU, [2] [3] it is approved for use in Australia and New Zealand. [4]