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99-96-7 - 4-Hydroxybenzoic acid, 99% - A13700 - Alfa Aesar

A13700 4-Hydroxybenzoic acid, 99%

CAS-Nummer
99-96-7
Synonyme

Größe Preis ($) Menge Verfügbarkeit
250g 16,69
1000g 54,90
5000g 208,80
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4-Hydroxybenzoic acid, 99%

MDL
MFCD00002547
EINECS
202-804-9

Chemische Eigenschaften

Formel
C7H6O3
Molmasse
138.12
Schmelzpunkt
213-218°
Flammpunkt
199°(390°F)
Löslichkeit
Soluble in water, alcohol, ethanol, ether, n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide.

Anwendungen

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.

Bemerkungen

Incompatible with strong oxidizing agents.

Literaturverweise

Froissard, D.; Rapior, S.; Bessiere, J. M.; Buatois, B.; Fruchier, A.; Sol, V.; Fons, F. Asplenioideae Species as a Reservoir of Volatile Organic Compounds with Potential Therapeutic Properties. Nat. Prod. Commun. 2015, 10 (6), 1079-1083.

Albarran, G.; Esparza, M.; Mendoza, E. Oxidation of hydroxybenzoic acids by ?OH radical produced radiolytically. Radiat. Phys. Chem. 2015, 107, 109-114.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Sicherheitshinweise: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,4812
Beilstein
970950
Harmonized Tariff Code
2918.29
TSCA
Yes
RTECS
DH1925000

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