(CH3)C6H4(OH), three isomeric compounds: 2-, 3-, and 4-hydroxytoluene, oils with boiling point c.200°C. They are ingredients of coal tar, and are important raw materials for plastics.
| Isomers of Cresol | ||||
|---|---|---|---|---|
| General | ||||
| Common name | o-cresol | m-cresol | p-cresol | |
| Systematic name | 2-methylphenol | 3-methylphenol | 4-methylphenol | |
| Other names | ortho-cresol | meta-cresol | para-cresol | |
| Molecular formula | C7H8O | |||
| SMILES | Oc1c(C)cccc1 | Oc1cc(C)ccc1 | Oc1ccc(C)cc1 | |
| Molar mass | 108.14 g/mol | |||
|
Appearance at room temperature and pressure |
greasy-looking solid ready to melt on hot day |
thicker liquid | greasy-looking solid | |
| CAS number | [95-48-7] | [108-39-4] | [106-44-5] | |
| CAS number for mixture of cresols [1319-77-3] | ||||
| Properties | ||||
| Density and phase | 1.05 g/cm3, liquid | 1.03 g/cm3, liquid | 1.02 g/cm3, liquid | |
|
Solubility in pure water at 20-25°C |
2.5 g/100 ml | 2.4 g/100 ml | 1.9 g/100 ml | |
| soluble in strongly alkaline water | ||||
| Melting point | 29.8 °C (303.0 K) | 11.8 °C (285.0 K) | 35.5 °C (309.7 K) | |
| Boiling point | 191.0 °C (464.2 K) | 202.0 °C (475.2 K) | 201.9 °C (475.1 K) | |
| Acidity (pKa) | ? | |||
| Viscosity | solid at 25 °C | ? cP at 25 °C | solid at 25 °C | |
| Structure | ||||
| Molecular shape | ? D | |||
| Hazards | ||||
| MSDS | External MSDS | ? | ||
| Main hazards | flammable, ingestion and inhalation toxicity hazard | |||
| Flash point | 81°C c.c. | |||
| R/S statement | R: 24/25-34 S: (1/2-)36/37/39-45 | |||
| RTECS number | ? | |||
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
|||
| Spectral data | UV, IR, NMR, MS | |||
| Related compounds | ||||
| Related phenols | phenol, xylenols | |||
| Related compounds | ? | |||
User Comments Add a comment…