Cycloheptatriene
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Cycloheptatriene
structure -
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CAS No:
544-25-2
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Formula:
C7H8
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Chemical Name:
Cycloheptatriene
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Synonyms:
1,3,5-Cycloheptatriene;Tropilidene;Tropiliden;Cycloheptatriene;33004-10-3
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CAS No:
Description
clear yellow to brownish liquid
Cycloheptatriene appears as a colorless liquid. Insoluble in water and less dense than water. Vapors heavier than air. Inhalation of high concentrations may have a narcotic effect. Used to make other chemicals.
Cycloheptatriene appears as a colorless liquid. Insoluble in water and less dense than water. Vapors heavier than air. Inhalation of high concentrations may have a narcotic effect. Used to make other chemicals.|Cyclohepta-1,3,5-triene is a cycloheptatriene with unsaturation at positions 1, 3 and 5. It is an annulene and a cycloheptatriene.
Cycloheptatriene Basic Attributes
92.14
92.14
506066
208-866-3
P58Q106NTF
2603
DTXSID5073909
29021990
Characteristics
0
2.05870
Cycloheptatriene appears as a colorless liquid. Insoluble in water and less dense than water. Vapors heavier than air. Inhalation of high concentrations may have a narcotic effect. Used to make other chemicals.
0.8876 g/cm3 @ Temp: 20 °C
-79.5 °C
117 °C
80 °F
n20/D 1.519(lit.)
H2O: insoluble
2-8°C
23.52 mmHg
combustible
9.69e-11 cm3/molecule*sec
Highly flammable. Insoluble in water.
Hydrocarbons, Aliphatic Unsaturated
Highly Flammable
CYCLOHEPTATRIENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.
Safety Information
II
3
UN 2603 3/PG 2
3
11-25-36/37/38-65
16-26-36/37/39-45-62
GU3675000
F,T
Treasury is ventilated, low temperature and dry; stored and transported separately from oxidant
Mix with air to form explosive mixture;
P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P322, P330, P331, P332+P313, P337+P313, P361, P362, P363, P370+P378, P403+P233, P403+P235, P405, P501
H225
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. (ERG, 2016)|Flammable - 3rd degree
|Danger|H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P322, P330, P331, P332+P313, P337+P313, P361, P362, P363, P370+P378, P403+P233, P403+P235, P405, and P501|Aggregated GHS information provided by 45 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: CAUTION: All these products have a very low flash point: Use of water spray when fighting fire may be inefficient. SMALL FIRE: Dry chemical, CO2, water spray or alcohol-resistant foam. LARGE FIRE: Water spray, fog or alcohol-resistant foam. Move containers from fire area if you can do it without risk. Dike fire-control water for later disposal; do not scatter the material. Use water spray or fog; do not use straight streams. FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2016)
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. SMALL SPILL: Absorb with earth, sand or other non-combustible material and transfer to containers for later disposal. Use clean, non-sparking tools to collect absorbed material. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2016)
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. (ERG, 2016)
Drug Information
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Inhalation or contact with some of these materials will irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution. (ERG, 2016)
Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Wash skin with soap and water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. Keep victim calm and warm. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. (ERG, 2016)
tropilidine
Cycloheptatriene Use and Manufacturing
Can be used industrially as a cleaning agent for printing presses
Fire Hazards -> Flammable - 3rd degree
Computed Properties
Molecular Weight:92.14
XLogP3:2.6
Exact Mass:92.062600255
Monoisotopic Mass:92.062600255
Heavy Atom Count:7
Complexity:102
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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