Resorcinol
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| Names | |||
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| Preferred IUPAC name
Benzene-1,3-diol | |||
| Other names
Resorcinol Resorcin m-Dihydroxybenzene 1,3-Benzenediol 1,3-Dihydroxybenzene 3-Hydroxyphenol m-Benzenediol | |||
| Identifiers | |||
3D model (JSmol) |
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| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.003.260 | ||
| KEGG | |||
PubChem CID |
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| UNII | |||
| UN number | 2876 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| C6H6O2 | |||
| Molar mass | 110.111 g/mol | ||
| Appearance | White solid | ||
| Odor | Faint | ||
| Density | 1.28 g/cm3, solid | ||
| Melting point | 110 °C (230 °F; 383 K) | ||
| Boiling point | 277 °C (531 °F; 550 K) | ||
| 110 g/100 mL at 20 °C | |||
| Vapor pressure | 0.0002 mmHg (25 °C) | ||
| Acidity (pKa) | 9.15 | ||
| −67.26×10−6 cm3/mol | |||
Refractive index (nD) |
1.578 | ||
| 2.07±0.02 D | |||
| Thermochemistry | |||
Std enthalpy of formation (ΔfH⦵298) |
−368.0 kJ·mol−1 | ||
Enthalpy of fusion (ΔfH⦵fus) |
20.4 kJ·mol−1 | ||
| Pharmacology | |||
| D10AX02 (WHO) S01AX06 (WHO) | |||
| Hazards | |||
| GHS labelling: | |||
| H302, H313, H315, H318, H400 | |||
| P273, P280, P305+P351+P338 | |||
| Flash point | 127 °C; 261 °F; 400 K | ||
| 608 °C (1,126 °F; 881 K) | |||
| Explosive limits | 1.4%-? | ||
| NIOSH (US health exposure limits): | |||
PEL (Permissible) |
none | ||
REL (Recommended) |
TWA 10 ppm (45 mg/m3) ST 20 ppm (90 mg/m3) | ||
IDLH (Immediate danger) |
N.D. | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
Resorcinol (or resorcin) is a phenolic compound. It is an organic compound with the formula C6H4(OH)2. It is one of three isomeric benzenediols, the 1,3-isomer (or meta-isomer). Resorcinol crystallizes from benzene as colorless needles that are readily soluble in water, alcohol, and ether, but insoluble in chloroform and carbon disulfide.