Is 4 hydroxybenzoic acid acidic?
Is 4 hydroxybenzoic acid acidic?
4-Hydroxybenzoic acid
| Names | |
|---|---|
| log P | 1.58 |
| Acidity (pKa) | 4.54 |
| Hazards | |
| Main hazards | Irritant |
What happens with the salicylic acid when heated?
Salicylic acid crystallizes in small colourless needles which melt at 1 55° C. It is sparingly soluble in cold water, but readily dissolves in hot. It sublimes, but on rapid heating decomposes into carbon dioxide and phenol.
What is the pH of 4 hydroxybenzoic acid?
3.3
4-Hydroxybenzoic acid for synthesis. CAS 99-96-7, chemical formula 4-(OH)C₆H₄COOH….Pricing & Availability.
| Physicochemical Information | |
|---|---|
| Melting Point | 215 – 217 °C |
| pH value | 3.3 (1 g/l, H₂O) |
| Bulk density | 600 kg/m3 |
| Solubility | 5 g/l |
What is the chemical structure of 4 hydroxybenzoic acid?
4-Hydroxybenzoic acid
| PubChem CID | 135 |
|---|---|
| Structure | Find Similar Structures |
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C7H6O3 |
| Synonyms | 4-HYDROXYBENZOIC ACID 99-96-7 p-Hydroxybenzoic acid 4-Carboxyphenol Benzoic acid, 4-hydroxy- More… |
What is the density of 4 hydroxybenzoic acid?
1.46 g/cm³
4-Hydroxybenzoic acid/Density
What is the melting point of 4 hydroxybenzoic acid?
215 – 217 °C
4-Hydroxybenzoic acid for synthesis….Pricing & Availability.
| Physicochemical Information | |
|---|---|
| Density | 1.4041 g/cm3 |
| Ignition temperature | >250 °C |
| Melting Point | 215 – 217 °C |
| pH value | 3.3 (1 g/l, H₂O) |
Can salicylic acid be used with niacinamide?
While it’s safe to use salicylic acid and niacinamide together, Leung advises that it’s best not to combine BHAs with other exfoliants or retinol. “Niacinamide is relatively non-irritating when paired with actives, but when we apply ingredients like AHA or BHAs, we need to give the skin the opportunity to use them.
What is the density of 4-hydroxybenzoic acid?
