邻甲酚
邻甲酚(英語:,ortho-Cresol,或称为2-甲基苯酚英語:)是结构式为CH3C6H4(OH)的有机化合物,常温下为无色固体,是很多其它化合物合成的中间体。邻甲酚是苯酚的衍生物,同分异构体有对甲酚(p-cresol)和间甲酚(m-cresol)[3]。
o-Cresol | |||
---|---|---|---|
| |||
IUPAC名 2-Methylphenol | |||
系统名 2-Methylbenzenol | |||
别名 | 2-Cresol o-Cresol ortho-Cresol 2-Hydroxytoluene o-Cresylic acid 1-Hydroxy-2-methylbenzene | ||
识别 | |||
CAS号 | 95-48-7 | ||
PubChem | 335 | ||
ChemSpider | 13835772 | ||
SMILES |
| ||
Beilstein | 506917 | ||
Gmelin | 101619 | ||
3DMet | B00313 | ||
UN编号 | 2076, 3455 | ||
EINECS | 202-423-8 | ||
ChEBI | 28054 | ||
RTECS | GO6300000 | ||
KEGG | C01542 | ||
MeSH | 2-Cresol | ||
性质 | |||
化学式 | C7H8O | ||
摩尔质量 | 108.14 g·mol−1 | ||
外观 | 无色至白色晶体 | ||
氣味 | 甜、酚类气味 | ||
密度 | 1.0465 g cm−3 | ||
熔点 | 31 °C(304 K) | ||
沸点 | 191 °C(464 K) | ||
溶解性(水) | 31 g dm−3 (at 40 °C) | ||
溶解性 | 可溶于氯仿,乙醚,CCl4 | ||
溶解性(乙醇) | 可混溶 (30 °C) | ||
溶解性(乙醚) | 可混溶 (30 °C) | ||
log P | 1.962 | ||
蒸氣壓 | 40 Pa (20 °C) | ||
pKa | 10.316 | ||
pKb | 3.681 | ||
磁化率 | -72.9·10−6 cm3/mol | ||
折光度n D |
1.5353 | ||
黏度 | 35.06 cP (45 °C) | ||
热力学 | |||
ΔfHm⦵298K | -204.3 kJ mol−1 | ||
ΔcHm⦵ | -3.6936 MJ mol−1 | ||
S⦵298K | 165.44 J K−1 mol−1 | ||
热容 | 154.56 J K−1 mol−1 | ||
危险性 | |||
警示术语 | R:R24/25, R34 | ||
安全术语 | S:S1/2, S36/37/39, S45 | ||
欧盟分类 | T C | ||
NFPA 704 |
2
3
0
| ||
爆炸極限 | 1.4%-? (148°C)[1] | ||
PEL | TWA 5 ppm (22 mg/m3) [皮肤][1] | ||
致死量或浓度: | |||
LD50(中位剂量) |
1350 mg/kg (大鼠,经口) 121 mg/kg (大鼠,经口) 344 mg/kg (小鼠,经口)[2] | ||
相关物质 | |||
相关化合物 | 间甲酚,对甲酚,苯酚 | ||
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
参考文献
- NIOSH Pocket Guide to Chemical Hazards. . NIOSH.
- . Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
- Helmut Fiegein "Cresols and Xylenols" in Ullmann's Encyclopedia of Industrial Chemistry" 2007; Wiley-VCH, Weinheim. doi:10.1002/14356007.a08_025
外部链接
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