Salicylic Acid is white crystalline powder, odorless, slightly bitter and then acrid. The melting point is 157-159℃, and it gradually changes color when exposed to light. Relative density 1.44. The boiling point is about 211°C/2.67kPa. Sublimation at 76°C. Rapid heating under normal pressure decomposes into phenol and carbon dioxide. 1g of salicylic acid can be dissolved in 460ml of water, 15ml of boiling water, 2.7ml of ethanol, 3ml of acetone, 3ml of ether, 42ml of chloroform, 135ml of benzene, 52ml of turpentine, about 60ml of glycerol and 80ml of petroleum ether. Adding sodium phosphate, borax, etc. can increase the solubility of salicylic acid in water. The pH of the aqueous solution of salicylic acid is 2.4. Salicylic acid and ferric chloride in water produce a special purple color.
Salicylic acid (from Latin salix, "willow tree") is a lipophilic monohydroxybenzoic acid, a type of phenolic acid, and a beta hydroxy acid (
BHA). This colorless crystalline organic acid is widely used in organic synthesis, and functions as a plant hormone. It is derived from the metabolism of salicin. As a popular
Cosmetic Ingredients, Salicylic acid has excellent "exfoliation and cleansing pores" ability, high safety, and lower skin irritation effect than fruit acid, so it has become the new favorite of skin care products. Salicylic acid can lighten
Pigment spots, shrink pores, remove fine wrinkles and improve aging caused by sun exposure.
Salicylic Acid is white crystal or crystal powders,no chemical changes in the air.Atmospherically sublimation temperature is over 76ºC.Easily to decarboxylate and change into phenol and dioxide when heated atmospherically,and its aqueous solution appears acid reaction,becomes purple with FeCL3.Slightly dissolves in water but dissolves in boiling water easily.Dissolves in the ethanol or ether and slightly soluble in chloroform.
Chemical Name: | |
Other Name: | Salicylic acid |
CAS NO.: | 69-72-7 |
Chemical Formula: | C7H6O3 |
Properties: | Colourless crystals, usually needle-like, or a white, crystalline powder; odourless. Slightly soluble in water,soluble in boiling water, soluble in ethanol or ether. |
How Does Salicylic Acid Work On Acne?
When your hair follicles (pores) get plugged with dead skin cells and oil, blackheads (open plugged pores), whiteheads (closed plugged pores), or pimples (pustules) often appear. Salicylic acid penetrates into your skin and works to dissolve the dead skin cells clogging your pores. It can take several weeks of use for you to see its full effect.
Application
1. Cream with 6% linked hydroxy acid has excellent effect. The best effect is from 7-10 days and after about 15 days, it can achieve the effect of fading completely.
2. Salicylic Acid has dissolving cutin activity, massage it into skin will be better.
3. 2% linked salicylic acid has the strongest dissolving cutin activity. Using free linked salicylic acid, you will get the same effect.
Application: can be applied in whitening, freckle-removing cream, moisturizer, essence, smoothing cream, regenerating skin cream, acne treatment, anti-wrinkle, Anti-Aging and other functional products.