NTP CHEMICAL REPOSITORY (RADIAN CORPORATION, AUGUST 29, 1991)
IDENTIFIERS
CATALOG ID NUMBER: 000710
CAS NUMBER: 77-73-6
BASE CHEMICAL NAME: DICYCLOPENTADIENE
PRIMARY NAME: DICYCLOPENTADIENE
CHEMICAL FORMULA: C10H12
STRUCTURAL FORMULA:
WLN: L C555 A DU IUTJ
SYNONYMS:
3A,4,7,7A-TETRAHYDRO-4,7-METHANOINDENE
BICYCLOPENTADIENE
BISCYCLOPENTADIENE
1,3-CYCLOPENTADIENE, DIMER
PHYSICAL CHEMICAL DATA
PHYSICAL DESCRIPTIONS: COLORLESS CRYSTALS
MOLECULAR WEIGHT: 132.22
SPECIFIC GRAVITY: .979 @ 20/20 C
DENSITY: 0.93 g/mL @ 35 C
MP (DEG C): 33.6 C
BP (DEG C): 172 C
SOLUBILITIES:
WATER : INSOLUBLE
DMSO : Not available
95% ETHANOL : SOLUBLE
METHANOL : Not available
ACETONE : Not available
TOLUENE : Not available
OTHER SOLVENTS:
CARBON TETRACHLORIDE: SOLUBLE
ACETIC ACID: SOLUBLE
PETROLEUM ETHER: SOLUBLE
ETHER : VERY SOLUBLE
VOLATILITY: Vapor pressure: 10 mm @ 47.6 C Vapor density: 4.55
FLAMMABILITY(FLASH POINT):
The flash point of this chemical is 32 C (90 F). It is flammable. Fires
involving this material should be controlled using a dry chemical, carbon
dioxide or Halon extinguisher.
UEL: Not available LEL: Not available
REACTIVITY: Not available
STABILITY: This compound is stable under normal laboratory conditions.
OTHER PHYSICAL DATA: Not available
TOXICITY
NIOSH REGISTRY NUMBER: PC1050000
TOXICITY:
typ. dose mode specie amount unit other
LD50 ORL RAT 353 MG/KG
LCLO IHL RAT 500 PPM/4H
LD50 IPR RAT 200 MG/KG
LD50 IPR MUS 200 MG/KG
LD50 SKN RBT 5080 MG/KG
AQTX/TLM96: 10-1 PPM
SAX TOXICITY EVALUATION: THR = HIGH VIA ORAL AND INHALATION; MODERATE VIA DERM
CARCINOGENICITY: Not available
MUTATION DATA: Not available
TERATOGENICITY: Not available
STANDARDS, REGULATIONS & RECOMMENDATIONS:
OSHA: Federal Register (1/19/89)
Final Limit: PEL-TWA 5 ppm [610]
ACGIH: TLV-TWA 5 ppm [610]
NIOSH Criteria Document: None
NFPA Hazard Rating: Health (H): 1
Flammability (F): 3
Reactivity (R): 1
H1: Materials only slightly hazardous to health (see NFPA for details).
F3: Materials which can be ignited under almost all normal temperature
conditions (see NFPA for details).
R1: Materials which are normally stable but which may become unstable at
elevated temperatures and pressures or which may react with water with
some release of energy but not violently (see NFPA for details).
OTHER TOXICITY DATA:
Status: Reported in EPA TSCA Inventory, July 1979
Skin and Eye Irritation Data:
skn-rbt 10 mg/24H SEV
skn-rbt 9300 ug/24H open SEV
eye-rbt 500 mg
eye-rbt 500 mg/24H MOD
OTHER DATA (Regulatory)
PROPER SHIPPING NAME (IATA): Dicyclopentadiene
UN/ID NUMBER: UN2048
HAZARD CLASS: 3 SUBSIDIARY RISK: None PACKING GROUP: III
LABELS REQUIRED: Flammable liquid
PACKAGING: PASSENGER: PKG. INSTR.: 309, Y309 MAXIMUM QUANTITY: 60 L, 10 L
CARGO : PKG. INSTR.: 310 MAXIMUM QUANTITY: 220 L
SPECIAL PROVISIONS: None
USES:
Chemical intermediate for insecticides, EPDM elastomers, metallocenes,
paints and varnishes, flame retardants for plastics.
COMMENTS:
HANDLING PROCEDURES
ACUTE/CHRONIC HAZARDS:
This compound is toxic via all routes of exposure. It causes
irritation on contact.
MINIMUM PROTECTIVE CLOTHING: Not available
RECOMMENDED GLOVE MATERIALS: Not available
RECOMMENDED RESPIRATOR:
Where the neat test chemical is weighed and diluted, wear a NIOSH-
approved half face respirator equipped with an organic vapor/acid gas
cartridge (specific for organic vapors, HCl, acid gas and SO2) with a
dust/mist filter.
OTHER: Not available
STORAGE PRECAUTIONS:
You should store this material in a refrigerator. STORE AWAY
FROM SOURCES OF IGNITION.
SPILLS AND LEAKAGE:
Should a spill occur while you are handling this chemical, you should
dampen the solid spill material with alcohol, then transfer the dampened
material to a suitable container. Use absorbent paper dampened with alcohol
to pick up any remaining material. Seal the absorbent paper, and any of your
clothes, which may be contaminated,in a vapor-tight plastic bag for eventual
disposal. Solvent wash all contaminated surfaces with alcohol followed by
washing with a strong soap and water solution. Do not reenter the contaminate
area until the Safety Officer (or other responsible person) has verified that
the area has been properly cleaned.
DISPOSAL AND WASTE TREATMENT:
You should dispose of all waste and contaminated materials
associated with this chemical as specified by existing local,
state and federal regulations concerning hazardous waste disposal.
It is suggested that your contaminated materials should be destroyed
by incineration in a special, high temperature ( >2000 degrees F),
chemical incinerator facility.
EMERGENCY PROCEDURES
SKIN CONTACT:
IMMEDIATELY flood affected skin with water while removing and isolating
all contaminated clothing. Gently wash all affected skin areas thoroughly
with soap and water.
If symptoms such as redness or irritation develop, IMMEDIATELY call a
physician and be prepared to transport the victim to a hospital for treatment.
INHALATION:
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air.
If symptoms (such as wheezing, coughing, shortness of breath, or burning in
the mouth, throat, or chest) develop, call a physician and be prepared to
transport the victim to a hospital.
Provide proper respiratory protection to rescuers entering an unknown
atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA)
should be used; if not available, use a level of protection greater than or
equal to that advised under Respirator Recommendation.
EYE CONTACT:
First check the victim for contact lenses and remove if present. Flush
victim's eyes with water or normal saline solution for 20 to 30 minutes while
simultaneously calling a hospital or poison control center.
Do not put any ointments, oils, or medication in the victim's eyes without
specific instructions from a physician.
IMMEDIATELY transport the victim after flushing eyes to a hospital even if
no symptoms (such as redness or irritation) develop.
INGESTION:
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing,
give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a
hospital or poison control center. Be prepared to transport the victim to a
hospital if advised by a physician.
If the victim is convulsing or unconscious, do not give anything by mouth,
ensure that the victim's airway is open and lay the victim on his/her side with
the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport
the victim to a hospital.
SYMPTOMS:
Symptoms of exposure to this compound may include irritation of the eyes, skin
and mucous membranes by vapor and/or solid, nausea, vomiting, headaches and
dizziness.
FIREFIGHTING: FF.1
SOURCES
SOURCES:
Lewis, R.J., Sr. and R.L. Tatken, Eds. Registry of Toxic
Effects of Chemical Substances. DHEW (NIOSH) Publication
No. 79-100. National Institute for Occupational Safety
and Health. Cincinnati, OH. 1979. PC1050000.
Weast, R.C. and M.A. Astle, Eds. CRC Handbook of Chemistry
and Physics. 60th Ed. CRC Press, Inc. Boca Raton, FL.
1982. PP. C-276, NO. D164.
Sax, N.I. Dangerous Properties of Industrial Materials. 4th Ed.
Van Nostrand Reinhold. New York. 1975. PP. 569.
International Technical Information Institute. Toxic and
Hazardous Industrial Chemicals Safety Manual for Handling
and Disposal with Toxicity and Hazard Data. International
Technical Information Institute. 1978. PP. 171, NO. 216.
Hawley, G.G., Ed. The Condensed Chemical Dictionary. 9th Ed.
Van Nostrand Reinhold. New York. 1977. PP. 283.
U.S. Environmental Protection Agency, Office of Toxic Substances.
Toxic Substances Control Act Chemical Substances Inventory,
Initial Inventory. 6 Vols. U.S. Environmental Protection
Agency. Washington, D.C. 1979. LISTED.
Proctor, N.H. and J.P. Hughes. Chemical Hazards of the Workplace.
J.B. Lippincott. Philadelphia. 1978. NOT LISTED.
Steere, N.V., Ed. Handbook of Laboratory Safety. 2nd Ed.
CRC Press, Inc. Cleveland, OH. 1971. PP. 818, NO. 994.
Oak Ridge National Laboratory. Environmental Mutagen Information
Center (EMIC), Bibliographic Data Base. Oak Ridge National
Laboratory. Oak Ridge, TN. NOT LISTED.
Oak Ridge National Laboratory. Environmental Teratogen Information
Center (ETIC), Bibliographic Data Base. Oak Ridge National
Laboratory. Oak Ridge, TN. NOT LISTED.
Windholz, M., Ed. The Merck Index. 9th Ed. Merck and Co.
Rahway, NJ. 1976. NOT LISTED.
Aldrich Chemical Company. Aldrich Catalog/Handbook of Fine
Chemicals. Aldrich Chemical Co., Inc. Milwaukee, WI.
1980. PP. 330, NO. 11,279-8.
Occupational Safety and Health Administration. Tentative
OSHA Listing of Confirmed and Suspected Carcinogens by
Category. Occupational Safety and Health Administration.
Washington, DC. 1979. NOT LISTED.
[610] Clansky, Kenneth B., Ed. Suspect Chemicals Sourcebook: A Guide to
Industrial Chemicals Covered Under Major Federal Regulatory and
Advisory Programs. Roytech Publications, Inc. Burlingame, CA.
1990. Section 3, p. 20.
[620] United States National Toxicology Program. Chemical Status Report.
NTP Chemtrack System. Research Triangle Park, NC. November 6, 1990.
Not listed.
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