Description

Potassium L-Ascorbate is the potassium salt of Vitamin C (L-ascorbic acid), a highly bioavailable and water-soluble form of this essential nutrient. This compound is valued for its superior stability and neutral pH compared to ascorbic acid, making it an ideal ingredient in formulations where acidity control is critical. It is primarily utilized by manufacturers in the food, nutraceutical, and pharmaceutical industries seeking a non-acidic, highly soluble source of Vitamin C for fortification, antioxidant protection, and health applications.

Application

• Nutraceutical & Dietary Supplements: Used as a key active ingredient in tablets, capsules, and powdered drink mixes for its antioxidant properties and immune support.
• Food & Beverage Fortification: Acts as a nutrient enhancer and antioxidant in juices, dairy products, baked goods, and functional foods without altering acidity.
• Pharmaceutical Formulations: Employed in injectable solutions, effervescent tablets, and other medicinal products requiring a neutral, soluble Vitamin C source.
• Cosmetics & Personal Care: Incorporated into serums, creams, and lotions for its skin-brightening and anti-aging antioxidant effects.
• Animal Feed & Pet Nutrition: Serves as a Vitamin C supplement in feed premixes to support animal health and growth.
• Technical & Industrial Applications: Functions as a reducing agent or antioxidant in certain photographic and chemical processes.

Basic Information

Product Name	Potassium L-Ascorbate
CAS No.	15421-15-5
Molecular Formula	C6H7KO6
Molecular Weight	214.21 g/mol
Synonyms	L-Ascorbic Acid Potassium Salt; Potassium Ascorbate; Vitamin C Potassium; Monopotassium Ascorbate; E 303; 2,3-Didehydro-L-threo-hexono-1,4-lactone Potassium Salt; Ascorbate Potassium; Iso-Vitamin C Potassium
EINECS	239-406-0

Quality Control

Our Potassium L-Ascorbate is manufactured under strict quality management systems. We offer grades compliant with FCC (Food Chemicals Codex) and pharmaceutical standards, ensuring suitability for sensitive applications. Every batch undergoes rigorous analytical testing for identity, purity, and heavy metals. Certificates of Analysis (COA) documenting full specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	White to slightly yellowish crystalline powder
Identification (IR)	Conforms
Assay (on dried basis)	98.0% - 101.0%
pH (10% solution)	7.0 - 8.0
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Lead (Pb)	≤ 2 ppm
Arsenic (As)	≤ 3 ppm
Specific Rotation [α]20/D	+103° to +108°

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.