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4-Hydroxybenzoic acid, 99%
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Quantity:
250 g
1000 g
5000 g
Description
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Suitable for battery materials development.
Applications
4-Hydroxybenzoic acid is used as an intermediate for dyes, antiseptics and active pharmaceutical ingredients. It is also used as a food preservative, corrosion inhibitor, anti-oxidant and an emulsifier. It reacts with 6-hydroxynaphthalene-2-carboxylic acid to prepare aromatic polyester called Vectran fiber. It acts as a precursor to prepare p-hydroxyphenylbenzoate, p-acetoxybenzoyl chloride and 4,4′-dihydroxybenzophenone. Further, it is used in paint additives, coating additives, processing aids, electrical and electronic products. In addition to this, it acts as a preservative in cosmetics and some ophthalmic solutions.
Solubility
Soluble in water, alcohol, ethanol, ether, n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide.
Notes
Incompatible with strong oxidizing agents.
4-Hydroxybenzoic acid is used as an intermediate for dyes, antiseptics and active pharmaceutical ingredients. It is also used as a food preservative, corrosion inhibitor, anti-oxidant and an emulsifier. It reacts with 6-hydroxynaphthalene-2-carboxylic acid to prepare aromatic polyester called Vectran fiber. It acts as a precursor to prepare p-hydroxyphenylbenzoate, p-acetoxybenzoyl chloride and 4,4′-dihydroxybenzophenone. Further, it is used in paint additives, coating additives, processing aids, electrical and electronic products. In addition to this, it acts as a preservative in cosmetics and some ophthalmic solutions.
Solubility
Soluble in water, alcohol, ethanol, ether, n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide.
Notes
Incompatible with strong oxidizing agents.

Specifications
Specifications
Melting Point | 213°C to 218°C |
Flash Point | 199°C (390°F) |
Assay Percent Range | 99% |
Quantity | 250 g |
Beilstein | 970950 |
Merck Index | 14,4812 |
Solubility Information | Soluble in water,alcohol,ethanol,ether,n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide. |
Formula Weight | 138.12 |
Percent Purity | 99% |
Chemical Name or Material | 4-Hydroxybenzoic Acid |
Safety and Handling
Hazard Category | H318-H335 |
Hazard Statement | GHS H Statement H315-H319-H335 |
Precautionary Statement | P261-P271-P280-P304+P340-P305+P351+P338-P310-P312-P501c |
EINECSNumber | 202-804-9 |
RTECSNumber | DH1925000 |
TSCA | Yes |
Recommended Storage | Ambient temperatures |
RUO – Research Use Only
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