环己烷
环己烷（C6H12）的分子结构、物理性质与来源记录。摩尔质量 84.16 g/mol。查看化学标识、相关反应和材料用途。
- 化学式
- C6H12
- 摩尔质量
- 84.16 g/mol
- Also known as
- Hexamethylene, Hexahydrobenzene, Hexanaphthene, Cyclohexan, Cykloheksan, Benzene, hexahydro-
Identifiers
- 化学式
- C6H12
- 摩尔质量
- 84.16 g/mol
- Also known as
- Hexamethylene, Hexahydrobenzene, Hexanaphthene, Cyclohexan, Cykloheksan, Benzene, hexahydro-
化学标识符
- SMILES
- C1CCCCC1
- InChI
- InChI=1S/C6H12/c1-2-4-6-5-3-1/h1-6H2
- PubChem CID
- 8078
性质
- 熔点
- 6.47 °C
- 沸点
- 80.7 °C at 760 mm Hg
- 相对密度（水 = 1）
- Relative density (water = 1): 0.8
- 水中溶解度
- In water, 55 mg/L at 25 °C
Diagnostic tests
饱和烃与溴的对照试验
- 试剂
- 配制好的溴的己烷稀溶液
- 条件
- 在相同条件下进行短时间对比，不使用紫外光引发。
- Positive observation
- 若颜色迅速消失，可能提示存在活泼杂质或条件不同。
- Negative observation
- 在初始对比时间内，溴的颜色保持不变。
- Interpretation
- 环己烷没有可快速发生加成反应的烯烃双键。
- 适用范围
- 环己烷在不饱和性试验中预期呈阴性。
- 来源说明
- 光引发的自由基取代是另一种过程；不能用长时间光照的结果解读这一对比。
- 证据
- reference experiment
Connected reactions
- Ring hydrogenation: Benzene → Cyclohexane
苯通过芳香环氢化生成环己烷。
参考文献
- PubChem Compound Summary: Cyclohexane (CID 8078)National Center for Biotechnology Information · PubChem
Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.
- Hazardous Substances Data Bank (HSDB): Cyclohexane — melting pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8078#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 485
- Hazardous Substances Data Bank (HSDB): Cyclohexane — boiling pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8078#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 485
- ILO-WHO International Chemical Safety Cards (ICSCs): Cyclohexane — densityILO-WHO International Chemical Safety Cards (ICSCs)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8078#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred.
- Hazardous Substances Data Bank (HSDB): Cyclohexane — solubilityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/8078#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Yalkowsky, S.H., He, Yan, Jain, P. Handbook of Aqueous Solubility Data Second Edition. CRC Press, Boca Raton, FL 2010, p. 291
- Testing for unsaturation with bromine on a microscaleRoyal Society of Chemistry · RSC Education
Source-supported qualitative reference observations.