1-Heptene

  • n-Heptene
  • Hept-1-ene
Formula
CH3(CH2)4CH=CH2
Structure
Description
Colorless liquid.
Uses
Organic synthesis.

Registry Numbers and Inventories.
CAS
592-76-7
EC (EINECS/ELINCS)
209-767-8
EC Class
highly flammable
R 11 36/37/38 65
S 16 26 33 36 62
RTECS
MJ8840000
UN (DOT)
2278
Beilstein/Gmelin
1098332
Beilstein Reference
4-01-00-00857
Swiss Giftliste 1
G-2454
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H14
Formula mass
98.19
Melting point, °C
-119
Boiling point, °C
93
Vapor pressure, mmHg
57 (25 C)
Critical temperature
263.9
Critical pressure
27.9
Density
0.7000 g/cm3
Solubility in water
Insoluble
Viscosity
0.5 sq mm/s
Surface tension
22.28 g/s2 (0 C)
Refractive index
1.3998 (20 C)
Partition coefficient, pKow
3.99
Heat of fusion
12.6 kJ/mol
Heat of vaporization
31.9 kJ/mol
Heat of combustion
-4645 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Disposal code
1
Stability
No data.
Incompatibilities
Strong oxidizing agents, acids, acetic anhydride, acid chlorides, carbon dioxide.
Decomposition
When heated to decomposition it emits acrid smoke and fumes.

Fire.
Flash Point,°C
-9
Autoignition, °C
260
Upper exp. limit, %
7
Lower exp. limit, %
1
Fire fighting
To fight fire, use foam, dry chemical, carbon dioxide.
Fire potential
Dangerous fire hazard when exposed to heat, flame, or oxidizers.
Hazards
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 hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
4
Exposure effects
Mild central nervous system depression or excitation may occur after ingestion or vapor inhalation. CNS effects can occur secondary to hydrocarbon pneumonitis and hypoxia, or from additives and contaminants (aniline, heavy metals, camphor, or pesticides). Some hydrocarbons are simple asphyxiants (e.G., Methane, ethane, propane gasses) which can produce CNS effects secondary to hypoxia. In a prospective study in Toronto, major congenital malformations were noted in 13 of 125 fetuses of mothers exposed to organic solvents during pregnancy.
   Ingestion
Nausea, vomiting, diarrhea, and abdominal pain may occur following ingestion.
   Inhalation
Coughing, choking, tachypnea, dyspnea, cyanosis, rales, hemoptysis, pulmonary edema, pneumatoceles, lipoid pneumonia, or respiratory arrest may develop following ingestion and aspiration.
   Skin
May cause irritation or burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Pure petroleum distillates - gastric decontamination is not indicated in the majority of accidental ingestions, since systemic toxicity is unlikely from a pure petroleum distillate. Other hydrocarbons - gastric decontamination may be indicated if a large amount of a toxic hydrocarbon has been ingested (e.G., Suicide attempt) and if spontaneous vomiting has not occurred.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Some chemicals can produce systemic poisoning by absorption through intact skin. Carefully observe patients with dermal exposure for the development of any systemic signs or symptoms and administer symptomatic treatment as necessary.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2278
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
HTE
 
HS Code
2901 29 80
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P