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The monochlorophenols are chemical compounds consisting of phenol substituted with a chlorine atom. There are three isomers, 2-chlorophenol, 3-chlorophenol, and 4-chlorophenol.

| Chlorphenols | Chlorphenols | Chlorphenols | Chlorphenols |

|---|---|---|---|

| IUPAC name | 2-Chlorophenol | 3-Chlorophenol | 4-Chlorophenol |

| Other names | o -Chlorophenol | m -Chlorophenol | p -Chlorophenol |

| Chemical structure | | | |

| CAS number | 95-57-8 | 108-43-0 | 106-48-9 |

| CAS number | 25167-80-0 (mixture) | 25167-80-0 (mixture) | 25167-80-0 (mixture) |

| PubChem ID | CID 7245 from PubChem | CID 7933 from PubChem | CID 4684 from PubChem |

| Chemical formula | C 6 H 5 ClO | C 6 H 5 ClO | C 6 H 5 ClO |

| Molar mass | 128.56 g/mol 1 | 128.56 g/mol 1 | 128.56 g/mol 1 |

| Physical state | liquid | solid | solid |

| Melting point | 7 °C [ 1 ] | 33–35 °C [ 2 ] | 43 °C [ 3 ] |

| Boiling point | 174 °C [ 1 ] | 214 °C [ 2 ] | 220 °C [ 3 ] |

| Density | 1.26 g/cm 3 [ 1 ] | 1.25 g/cm 3 [ 2 ] | 1.31 g/cm 3 [ 3 ] |

| Vapor pressure | 2.3 mbar (20 °C) [ 1 ] | 0.23 mbar (20 °C) [ 2 ] | 0.15 mbar (20 °C) [ 3 ] |

| pKa [ 4 ] | 8.48 | 9.08 | 9.38 |

| Solubility | Low solubility in water (27–29 g/L at 20 °C) [ 1 ] [ 2 ] [ 3 ] | Low solubility in water (27–29 g/L at 20 °C) [ 1 ] [ 2 ] [ 3 ] | Low solubility in water (27–29 g/L at 20 °C) [ 1 ] [ 2 ] [ 3 ] |

| Flash point | 85 °C [ 1 ] | 120 °C [ 2 ] | 121 °C [ 3 ] |

| GHS hazard pictograms | [ 1 ] [ 2 ] [ 3 ] | [ 1 ] [ 2 ] [ 3 ] | [ 1 ] [ 2 ] [ 3 ] |

| GHS hazard statements | H302 , H312 , H332 , H411 | H302 , H312 , H332 , H411 | H302 , H312 , H332 , H411 |

| GHS hazard statements | P273 | P273 , P280 | P273 , P302+P352 |

• See also

• References

• Chlorophenol

• Dichlorophenol

• Monobromophenol

• Pentachlorophenol

• Trichlorophenol

cite-note-gestis-o-11. Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health

cite-note-gestis-m-22. Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health

cite-note-gestis-p-33. Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health

cite-note-crc-44. CRC Handbook of Tables for Organic Compound Identification (Third ed.). 1984. ISBN 0-8493-0303-6.