Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Product Description
Sodium ascorbate, also known as L-ascorbic acid sodium salt or vitamin C sodium salt, is the sodium salt of ascorbic acid (vitamin C). It appears as a white to off-white crystalline powder, odorless with a slightly salty taste. It is highly soluble in water, chemically stable in dry air, and widely utilized as a nutritional fortifier, antioxidant, and color stabilizer in food, pharmaceutical, cosmetic, and biochemical research fields.
Uses
Food Industry: Acts as a nutritional fortifier (providing vitamin C), antioxidant, and color retention agent. It prevents oxidation and discoloration in processed meats (ham, sausage), seafood, and baked goods, extending shelf life and maintaining sensory quality.
Pharmaceutical Field: Serves as a vitamin C supplement in tablets, injections, and oral solutions, correcting vitamin C deficiency. It also functions as an antioxidant stabilizer in pharmaceutical formulations.
Cosmetic Industry: Incorporated into skincare products for anti-aging, whitening, and wrinkle prevention, protecting skin from oxidative stress and promoting collagen synthesis.
Biochemical Research: Used as a reducing agent, antioxidant, and enzyme cofactor in cell culture, metabolomics, and biochemical assays. It supports collagen deposition and regulates cellular redox balance.
Molecular Formula & Structure
- Molecular Formula: C?H?NaO?
- Molecular Weight: 198.11 g/mol
- IUPAC Name: Sodium (R)-2-((S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate
- Synonyms: L-Ascorbic acid sodium salt; Vitamin C sodium salt; E301
- EC Number: 205-126-1
- SMILES Code: OC[C@H](O)[C@@H]1C(O)=C(O[Na])C(=O)O1
- Chemical Structure: A sodium salt of L-ascorbic acid, featuring a furanone ring with enolate sodium, hydroxyl groups, and a dihydroxyethyl side chain. It readily dissociates in water to release ascorbate anions and sodium ions.
Physical & Chemical Properties
- Appearance: White to off-white crystalline powder, odorless, slightly salty taste.
- Melting Point: 218 °C (decomposes); Specific Rotation: +103° to +108° (c=1, water, 25 °C).
- Solubility: Freely soluble in water (62 g/100 mL at 25 °C); very slightly soluble in ethanol; insoluble in benzene, ether, and chloroform.
- pH Value: 6.5–8.0 (2% aqueous solution, 25 °C), weakly alkaline.
- Stability: Stable in dry air; darkens on exposure to light. Hygroscopic; aqueous solutions oxidize rapidly at pH >6.0, especially under neutral/alkaline conditions.
- Toxicity: Low toxicity; oral LD50 (rat) >5 g/kg. Ingestion of large doses (>10 g) may cause diarrhea. Avoid inhalation of dust and direct skin/eye contact.
Synthesis & Storage
- Synthesis: Prepared by reacting L-ascorbic acid with sodium bicarbonate or sodium carbonate in aqueous solution, followed by precipitation with isopropanol, filtration, and drying.
- Storage: Sealed in airtight, light-resistant, moisture-proof containers; stored in a cool, dry place (temperature <25 °C). Protect from light, moisture, and strong oxidizing agents. Shelf life: 24 months (unopened).
- Safety: Operate in a well-ventilated area; wear nitrile gloves, goggles, and a dust mask. Avoid dust inhalation and skin/eye contact. In case of contact, rinse with plenty of water. Keep away from food, feed, and children.
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