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Dicyclopentadiene CAS#77-73-6
CAS Number: 77-73-6
Chemical Formula: C10H12
Synonyms:
ALPHA-DICYCLOPENTADIENE
DCPD90%
4,7-Methanoindene, 3a,4,7,7a-tetrahydro-
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: Transperant Liquid
Dicyclopentadiene CAS#77-73-6
Cyclopentadiene is a crystalline solid or a liquid (above 32℃) with a disagreeable, camphor-like odor.The odor threshold is 0.011 (detectable); 0.020 ppm (recog_x005fnizable). Molecular weight=132.22; Boilingpoint=decomposes at 172.2℃; Freezing/Melting point 532℃; Vapor pressure=1.4 mmHg at 20℃; Flash point =32℃; Autoignition temperature=503℃. HazardIdentification (based on NFPA-704 M Rating System):Health 1, Flammability 3, Reactivity 1. Explosive limits:LEL=0.8; UEL=6.3. Practically insoluble in water;solubility=0.02%.
Dicyclopentadiene Chemical Properties |
Melting point | 33 °C(lit.) |
Boiling point | 170 °C(lit.) |
density | 0.986 g/mL at 25 °C(lit.) |
vapor pressure | 3 hPa (20 °C) |
refractive index | n |
Fp | 114 °F |
storage temp. | Store below +30°C. |
solubility | Chloroform (Slightly), Methanol (Slightly) |
form | Liquid |
color | Clear |
Specific Gravity | 0.968 |
Odor | Camphor-like. |
explosive limit | 0.8-6.3%(V) |
Water Solubility | Immiscible with water. |
FreezingPoint | 31.5℃ |
Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
Merck | 14,2739 |
BRN | 1904092 |
Dielectric constant | 2.4900000000000002 |
Exposure limits | ACGIH: TWA 0.5 ppm; STEL 1 ppm |
Stability: | Stable at room temperature, but may form explosive peroxides if stored in contact with air. Incompatible with oxidizing agents. Decomposes on heating. Flammable. Mixtures of the vapour with air are explosive. |
InChI | 1S/C10H12/c1-2-9-7-4-5-8(6-7)10(9)3-1/h1-2,4-5,7-10H,3,6H2/t7-,8+,9,10/m0/s1 |
InChIKey | HECLRDQVFMWTQS-UHFFFAOYSA-N |
SMILES | C1C=CC2C3CC(C=C3)C12 |
LogP | 3.300 (est) |
CAS DataBase Reference | 77-73-6(CAS DataBase Reference) |
NIST Chemistry Reference | 4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydro-(77-73-6) |
EPA Substance Registry System | Dicyclopentadiene (77-73-6) |
ECETOC JACC REPORT | Dicyclopentadiene (77-73-6) |
Safety Information |
Hazard Codes | F,Xn,N,T |
Risk Statements | 11-20/22-36/37/38-51/53-23-22-10 |
Safety Statements | 36/37-61-45-26 |
OEB | A |
OEL | TWA: 5 ppm (30 mg/m3) |
RIDADR | UN 2048 3/PG 3 |
WGK Germany | 3 |
RTECS | PC1050000 |
Autoignition Temperature | 503 °C |
TSCA | TSCA listed |
HazardClass | 3 |
PackingGroup | III |
HS Code | 29021990 |
Storage Class | 3 - Flammable liquids |
Hazard Classifications | Acute Tox. 2 Inhalation |
Hazardous Substances Data | 77-73-6(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 353 mg/kg LD50 dermal Rabbit 4940 mg/kg |
Product Application of Dicyclopentadiene CAS#77-73-6
Dicyclopentadiene is used in resins, particularly unsaturated polyester resins. It plays a major role in inks, adhesives and paints. It is also used as a monomer in polymerization reactions. It is a precursor for the preparation of endo-tetrahydrodicyclopentadiene, which reacts with aluminum chloride at higher temperature to give adamantine. It undergoes a retro-Diels-Alder reaction to yield cyclopentadiene, which acts as ligand in inorganic chemistry.
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