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4-Hydroxybenzoic acid, 99%, Thermo Scientific Chemicals
Descrizione
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.
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.
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.
Specifica
Specifica
| Materiale o nome chimico | 4-Hydroxybenzoic Acid |
| Punto di fusione | 213°C to 218°C |
| Punto d'infiammabilità | 199°C (390°F) |
| Intervallo percentuale saggio | 99% |
| Quantità | 250 g |
| Beilstein | 970950 |
| Indice di Merck | 14,4812 |
| Informazioni di solubilità | Soluble in water,alcohol,ethanol,ether,n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide. |
| Peso formulazione | 138.12 |
| Percent Purity | 99% |
Sicurezza e movimentazione
- 4-Hydroxybenzoic acid
- Pericolo
- Lesione oculare grave/irritazione oculare Categoria 1
- Tossicità specifica per organi bersaglio (esposizione singola) Categoria 3
- H318-Provoca gravi lesioni oculari.
- H335-Può irritare le vie respiratorie.
- P261-Evitare di respirare la polvere/i fumi/i gas/la nebbia/i vapori/gli aerosol.
- P280-Indossare guanti/indumenti protettivi/Proteggere gli occhi/il viso.
- P305+P351+P338-IN CASO DI CONTATTO CON GLI OCCHI: sciacquare accuratamente per parecchi minuti. Togliere le eventuali lenti a contatto se è agevole farlo. Continuare a sciacquare.
- MIXTURE LIST-Contiene: p-Hydroxybenzoic acid
RUO – Research Use Only