What is the structure of p-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 hydroxybenzoic acid used for?
4-Hydroxybenzoic acid (4-HBA) is a white crystalline solid that is widely used in organic synthesis. In particular, its esters, called parabens, are used as preservatives in cosmetics and pharmaceuticals.
What is the common name of C7H6O3?
Salicylic Acid-13C6 | C7H6O3 – PubChem.
How do you make a 4-hydroxybenzoic acid?
Chemical production 4-Hydroxybenzoic acid is produced commercially from potassium phenoxide and carbon dioxide in the Kolbe-Schmitt reaction. It can also be produced in the laboratory by heating potassium salicylate with potassium carbonate to 240 °C, followed by treating with acid.
Why o hydroxybenzoic acid is stronger than P hydroxybenzoic acid?
o-hydroxybenzoic acid is more acidic than p-hydroxybenzoic acid because its conjugate base is more stable. In o-hydroxybenzoic acid, the hydroxyl group is close enough to the carboxylic acid that the deprotonated oxygen can hydrogen bond with the hydroxyl group.
How many carbon atoms are in hydroxybenzoic acid?
2-Hydroxybenzoic acid Ethanoic anhydride Show perodic tJple 11 Carbon atoms Number of atoraietiess hg carboxylic: acid (aspirin) Ethanoyloxybenzene Ethanoic acid.
How do you make 2 hydroxybenzoic acid?
The preparation of 2-hydroxybenzoic acid This oil can be hydrolysed by boiling with aqueous sodium hydroxide for about 30 minutes. The reaction produces sodium 2-hydroxybenzoate which can be converted into 2-hydroxybenzoic acid by adding hydrochloric acid.
Why is P-hydroxybenzoic acid weaker than benzoic acid?
(A) p-Hydroxy benzoic acid has a lower boiling point than o-hydroxy benzoic acid. (R) a-Hydroxy benzoic acid has intramolecular hydrogen bonding.
Which is more acidic P-hydroxybenzoic acid or benzoic acid?
Although p-hydroxy benzoic acid is less acidic than benzoic acid, ortho hydroxy benzoic acid (salicylic acid) is about 15 times more acidic than benzoic acid.
Is P-hydroxybenzoic acid stronger than benzoic acid?
m-Hydroxybenzoic acid is a stronger acid than benzoic acid while p-hydroxybenzoic acid is weaker.
What is p-hydroxybenzoic acid (PHBA)?
4-Hydroxybenzoic acid, also known as p-hydroxybenzoic acid (PHBA), is a monohydroxybenzoic acid, a phenolic derivative of benzoic acid.
What is 4-hydroxybenzoic acid?
4-Hydroxybenzoic acid, also known as p-hydroxybenzoic acid ( PHBA ), is a monohydroxybenzoic acid, a phenolic derivative of benzoic acid.
Where can I find p-hydroxybenzoic acid glucoside and Violdelphin?
p -Hydroxybenzoic acid glucoside can be found in mycorrhizal and non-mycorrhizal roots of Norway spruces ( Picea abies ). Violdelphin is an anthocyanin, a type of plant pigments, found in blue flowers and incorporating two p -hydroxybenzoic acid residues, one rutinoside and two glucosides associated with a delphinidin .
What is the acid dissociation constant of 4-hydroxybenzoic acid?
4-Hydroxybenzoic acid has about one tenth the acidity of benzoic acid, having an acid dissociation constant Ka = 3.3 × 10−5 M at 19 °C. Its acid dissociation follows this equation: