Products Description
Ascorbic acid, commonly known as Vitamin C, is an essential water-soluble nutrient and one of the most widely used food additives across the globe. Its name derives from its remaleic-anhydride-cas-108-31-6.html">markable anti-scurvy property, which enables it to prevent and treat scurvy, a typical nutritional deficiency disease. The naturally occurring L-enantiomer of ascorbic acid is recognized as Vitamin C.
Adequate intake of ascorbic acid is critical for human health. Insufficient supply will hinder the synthesis of collagen, the most abundant protein in animal tissues. Besides its anti-scurvy effect, it participates in a wide range of vital biochemical reactions in the human body. It facilitates the normal metabolism of multiple amino acids, enhances the body’s absorption of dietary iron, and strengthens cellular defenses by neutralizing harmful free radicals.
Chemical Properties
| Item | Specification |
| Melting point | 190-194 °C (dec.) |
| alpha | 20.5 º (c=10,H2O) |
| Boiling point | 227.71°C (rough estimate) |
| density | 1.65 g/cm3 |
| FEMA | 2109 ASCORBIC ACID |
| refractive index | 21 ° (C=10, H2O) |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 50 mg/mL at 20 °C, clear, nearly colorless |
| pka | 4.04, 11.7(at 25℃) |
| form | powder |
| color | white to slightly yellow |
| Appearance | colorless solid |
| Odor | Odorless |
| PH | 3.59(1 mM solution);3.04(10 mM solution);2.53(100 mM solution); |
| PH Range | 1 - 2.5 |
| Odor Type | green |
| Optical Rotation | [α]25/D 19.0 to 23.0°, c = 10% in H2O |
| biological source | synthetic (organic) |
| Water Solubility | 333 g/L (20 ºC) |
| Merck | 14,830 |
| BRN | 84272 |
| BCS Class | 1 |
| Stability | Stable. May be weakly light or air sensitive. Incompatible with oxidizing agents, alkalies, iron, copper. |
| Cosmetics Ingredients Functions | ANTIOXIDANT BUFFERING FRAGRANCE SKIN CONDITIONING |
| InChIKey | CIWBSHSKHKDKBQ-JLAZNSOCSA-N |
| LogP | -1.85 |
| CAS DataBase Reference | 50-81-7(CAS DataBase Reference) |
| NIST Chemistry Reference | L-Ascorbic acid(50-81-7) |
| EPA Substance Registry System | Ascorbic acid (50-81-7) |
| Absorption | cut-off at 306nm in H2O at 1M |
Safety Information
| Item | Specification |
| Hazard Codes | |
| Risk Statements | |
| Safety Statements | 24/25-36-26 |
| WGK Germany | 1 |
| RTECS | CI7650000 |
| TSCA | Yes |
| HS Code | 29362700 |
| Hazardous Substances Data | 50-81-7(Hazardous Substances Data) |
| Toxicity | LD50 oral in rat: 11900mg/kg |
Product Application
Various salts of ascorbic acid, including sodium ascorbate, potassium ascorbate and calcium ascorbate, are collectively referred to as ascorbates. These derivatives are extensively applied as effective preservatives in the food industry.
Through esterification reaction, ascorbic acid can be modified to gain lipophilic properties. Its ester compounds with palmitic acid and stearic acid — ascorbyl palmitate and ascorbyl stearate — serve as high-performance antioxidants. These lipid-soluble derivatives are widely used in food processing, pharmaceutical formulations and cosmetic production.
In general, ascorbic acid and its derivatives are versatile raw materials applied in food, healthcare, pharmaceutical and personal care industries, valued for their antioxidant, nutritional fortification and preservation effects.
Physical and Chemical Properties
Melting Point: 190–192 °C (decomposes upon heating)
Solubility: Highly soluble in water; slightly soluble in ethanol; practically insoluble in ether, benzene and other non-polar organic solvents
Chemical Stability: Sensitive to light, heat and air. It is easily oxidized and discolored when exposed to oxygen, especially in aqueous solutions. Long-term storage under high temperature or strong light will accelerate its deterioration.
Specific Optical Rotation: +20.5° ~ +21.5° (10% aqueous solution)
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
