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Ascorbic Acid Vitamin C
  • Ascorbic Acid Vitamin C

Ascorbic Acid Vitamin C

Appearance:White crystalline powder

Vitamin C(C6H8O6), w%:≥99.0

Residue on ignition (%):≤ 0.10

Arsenic:≤3 ppm

Heavy metals(As):≤10 ppm

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Description of Ascorbic Acid Vitamin C
Ascorbic Acid is a white or slightly yellow crystal or powder, a little acid with an m.p. of 190℃-192℃. It is easily soluble in water, a little soluble in alcohol, and uneasily soluble in Ether chloroform and other organic solvent. In a solid state, it is stable in air. Its water solution is easily mutated when it meets with air.

Technical Parameters of Ascorbic Acid Vitamin C

ItemsAppearanceVitamin C(C6H8O6), w%Residue on ignition (%)ArsenicHeavy metals(As)Lead
StandardWhite crystalline powder≥99.0

             ≤ 0.10

≤3 ppm≤10 ppm


≤2 ppm

Ascorbic Acid Vitamin C used in concrete

Ascorbic acid (vitamin C), as a building material admixture, has been used in expressways, high-rise buildings, bridges, culverts, and other construction projects, can be compounded, and is an excellent water reducer additive.

Vitamin C contains a large number of strong polar functional groups, carboxyl and hydroxyl groups, which provide dispersion and flow properties to cement particles through adsorption, dispersion, wetting, and other surface activity, and reducing the friction resistance between cement particles, reduce the free energy of the interface between cement particles and water to increase the workability of fresh concrete.

At the same time, polycarboxylic acids are adsorbed on the surface of cement particles, and carboxylate ions make cement particles carry a negative charge, resulting in electrostatic repulsion between cement particles and dispersion of cement particles, resulting in inhibition of the condensation tendency of cement paste. Increase the contact area between cement particles and water to fully hydrate cement.

In the process of diffusing cement particles, the free water surrounded by condensates is released, which improves the workability and reduces the amount of mixing water.


Precautions of Ascorbic Acid Vitamin C

1. Vitamin C is non-toxic and harmless, biodegradable, but not edible;

2. If it gets into the eyes, it should be rinsed with plenty of water in time;

3. If you cause allergies to part of the human body, you should consult a doctor in time.

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