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99.9% Imported 25kg/bag35000
Product name: Hydroquinone
Alias: 1,4-Benzenediol; Quinol; Hydroxyquinone; 1,4-Dihydroxybenzene; benzene-1,4-diol; p-hydroquinone
Technical Specification Code: 738
CAS No.: 123-31-9
Molecular formula: C₆H₆O₂
Molecular weight: 110.11
Main component: Pure product　　
Appearance and properties: White crystal. 　　
pH:Melting point (^οC): 170.5 　　
Boiling point (^οC): 285 　　
Relative density (water=1): 1.33 　　
Relative vapor density (air=1): 3.81 　　
Saturated vapor pressure (kPa): 0.13(132.4^οC) 　　
Heat of combustion (kJ/mol): 2849.8 　　
Critical temperature(^οC): 549.9 　　
Critical pressure (MPa): 7.45 　　
Octanol/water partition coefficient logarithm value: 0.59
Main use: Preparation of black-and-white developer, anthraquinone dyes, azo dyes, rubber antioxidant, stabilizers and antioxidants.