Sodium Ascorbate | E301

SODIUM ASCORBATE

Other Names: Sodium salt of L-ascorbic acid, sodium ascorbate, E301, antioxidant

CAS Number: 134-03-2
Chemical Formula: C₆H₇NaO₆
Molar Mass: 198.11 g/mol
Appearance: White to slightly yellowish solid, powder or fine crystals

Sodium ascorbate is the sodium salt of L-ascorbic acid. The product is most commonly supplied as a white to slightly yellowish powder and is readily soluble in water. It is characterized by reducing and antioxidant properties, which makes it suitable as a reagent, a component of technical formulations and an auxiliary substance in processes requiring protection against oxidation. In food additive nomenclature, sodium ascorbate is known as E301; however, use in specific sectors depends on the product grade, documentation and compliance with the requirements for the intended application.

Chemical and Physical Properties

Form: Solid, powder or fine crystals
Color: White to slightly yellowish
Odor: Odorless or slightly characteristic
Solubility in Water: Readily soluble
Solubility in Organic Solvents: Limited
Chemical Character: Sodium salt of ascorbic acid
Properties: Antioxidant, reducing agent
pH of Aqueous Solution: Usually slightly acidic to neutral
Stability: Stable under dry conditions, sensitive to moisture, light and prolonged exposure to air

Applications

Antioxidant: Used as a substance that helps limit oxidation processes in selected formulations and mixtures.

Reducing Agent: Applied to protect oxidation-sensitive components.

Laboratory Use: Used as a reducing reagent, solution component and auxiliary material in chemical procedures.

Technical Formulations: May be used as a component of mixtures requiring a compound with antioxidant properties.

Source of Ascorbate: Provides ascorbate ions in a readily soluble sodium salt form.

E301 Designation: Also known as food additive E301, with use depending on the appropriate product grade and documentation.

Handling and Storage

Store in a tightly closed container in a dry, cool and well-ventilated place. Protect from moisture, light, heat and prolonged exposure to air. Close the container tightly after use to reduce caking, oxidation and loss of product quality. Keep away from strong oxidizing agents and chemically incompatible substances.