L-ascorbic acid [50-81-7]
L-ascorbic acid is contained in food, belongs to the most sensitive to external factors vitamins. Added to cosmetics for flabby skin, with visible wrinkles and discoloration, lacking in healthy color and youthful glow, it is also a component of chemical peels, which include eliminate stretch marks and firm the skin.
Appearance white crystals or crystalline powder
Specific rotation (25 ° C, 10%, H2O) +20.5 ÷ +21.5 °
Roasting residue (SO4) max. 0.2%
Oxalic acid (H2C2O4) max. 0.3%
Heavy metals (Pb) max. 0.0005%
Copper (Cu) max. 0.001%
Lead (Pb) max. 0.001%
Iron (Fe) max. 0.0005%
Labeling of hazardous chemicals and mixtures that are part of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The pictograms recommended by GHS have the shape of a square set on the top. They should contain a black symbol on a white background with a red border.
Priority rules to be observed in connection with the labeling of a substance:
– the skull and crossbones, the exclamation mark pictogram should not be added.
– corrosive effect, the exclamation mark pictogram should not be added if it concerns eye or skin irritation.
– health hazard determining respiratory sensitization, the exclamation mark pictogram should not be added if it concerns skin sensitization or irritation to eyes or skin.
Source: GHS pictograms