English name: 4-Hydroxybenzoic acid
CAS number: 99-96-7
Molecular formula: C7H6O3
Molecular weight: 138.12
EINECS number: 202-804-9
MDL No.:MFCD00002547
attribute
Melting point 213-217 ° C (lit.)
Boiling point 213.5 ° C (rough estimate)
Density: 1,46 g/cm3
Vapor pressure 0Pa at 20 ℃
Refractive index 1.4600 (estimate)
FEMA3986 | 4-HYDROXYBENZOIC ACID
Flash point 199 ° C
Storage conditions Store below+30 ° C
Solubility methanol: soluble 5%, clear to slightly hazy, colorless to faintly yellow
Crystalline Powder Form
Acidity coefficient (pKa) 4.48 (at 19 ℃)
Color White to Ivory
PH value 3.3 (1g/l, H2O, 20 ℃)
Odor at 100.00% phenolic nutty
Fragrant phenolic
Water solubility 5 g/L (20 º C)
Merck14,4812
JECFA Number957
BRN970950
InChIKeyFJKROLUGYXJWQN-UHFFFAOYSA-N
LogP0.878 at 22℃