¿Qué es Sodium Ascorbate (Vitamin C Sodium Salt)? Aplicaciones, dosis, alternativas y especificaciones

Sodium Ascorbate, also known as Vitamin C Sodium or L-Ascorbic acid sodium salt, is the sodium salt form of L-ascorbic acid (Vitamin C). It es una important category of vitamin C derivatives, with wide application value in the global industria alimentaria, pharmaceutical industry, cosmetic industry, and feed industry. Its molecular formula is C6H7NaO6, molecular weight is 198.11, CAS number is 134–03–2, CNS number is 04.015, and INS number is 301. In terms of chemical structure, sodium ascorbate es un salt compound formed by combining L-ascorbic acid with sodium ions. The sodium ascorbate molecule retains the enediol structure of L-ascorbic acid, which is the active center for its antioxidante function. Compared with L-ascorbic acid, the acidity of sodium ascorbate is significantly lower, con una 1% aqueous solución having a pH of approximately 6.5–8.0, which is neutral to slightly alkaline, greatly reducing gastrointestinal irritation. Sodium ascorbate appears as a white to slightly yellow cristalline polvo or gránulos, odorless, con una slightly salty taste. It is more soluble en agua than ascorbic acid (62g/100mL at temperatura ambiente), and a 10% aqueous solución has a pH of approximately 7.5. Sodium ascorbate is quite stable in the dry state when exposed to air, but undergoes slow oxidative decomposition in aqueous solución when exposed to air, metals, heat, and light. Its color gradually deepens upon exposure to light, and stability decreases after absorbing humedad. Its decomposition temperature es unpproximately 218°C.

Sodium ascorbate se reconoce como a mild and stable source of vitamin C, holding an irreplaceable position in the global food, pharmaceutical, cosmetic, and feed industries. Its most outstanding core advantages lie in its neutral pH profile, excellent chemical stability, and extremely wide application adaptability.

Neutral pH Profile: The greatest advantage of sodium ascorbate is its near-neutral pH (1% solución pH 6.5–8.0). Compared con el strong acidity (pH approx. 2.5) of L-ascorbic acid, sodium ascorbate causes significantly less gastrointestinal irritation, making it especially suitable for individuals with sensitive stomachs, children, and long-term users. Research shows that because it es un sodium salt, it has more stable performance, and at the same time no longer has the strong acidity of vitamin C, permitening it to be taken con una variety of medications, making it superior to vitamin C. In formulations como effervescent tablets, oral solucións, and chewable tablets, the neutral pH characteristic of sodium ascorbate permite it to be compatible with other ingredients without causing drastic pH fluctuations in the system.