Supplier Type
- Reagent
Supplier Region
- Hyderabad(1)
1,3-Cyclopentadiene
- CAS:542-92-7
- MF:C5H6
- MW:66.1
- EINECS:208-835-4
- Melting point::
- -85°; mp 32.5°
- Boiling point::
- bp760 41.5-42.0°
- Density :
- d40 0.8235; d410 0.8131; d420 0.8021; d425 0.7966; d430 0.7914
- vapor pressure :
- 381 at 20.6 °C, 735 at 40.6 °C, 1,380 at 60.9 °C (Stoeck and Roscher, 1977)
- refractive index :
- nD16 1.44632
- solubility :
- Miscible with acetone, benzene, carbon tetrachloride, and ether. Soluble in acetic acid, aniline, and carbon disulfide (Windholz et al., 1983).
- form :
- Colorless liquid
- pka:
- 16(at 25℃)
- Water Solubility :
- 10.3 mM at 25 °C (shake flask-UV spectrophotometry, Streitwieser and Nebenzahl, 1976)
- Henry's Law Constant:
- 5.1 at 25 °C (approximate - calculated from water solubility and vapor pressure)
- Exposure limits:
- TLV-TWA 75 ppm (～202 mg/m3) (ACGIH, NIOSH, and OSHA); IDLH 2000 ppm (NIOSH).
- Stability::
- Stable at room temperature. Incompatible with oxidizing agents, acids and a wide variety of other compounds. May form peroxides in storage. May undergo spontaneous polymerisation. Decomposes on heating. Highly flammable. Mixtures with air are explosive.
