1-Butene is used for the production of a wide variety of chemicals in the gasoline and rubber processing areas.
Registry Numbers and Inventories.
EC Index Number
S 9 16 33
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
1151 (5 C)
Vapor density (air=1)
Odor Threshold Odor threshold 69 ppb
0.6255 g/cm3 (20 C)
Solubility in water
0.88 cp (-80 C)
0.0121 g/s2 at 298.15 K
1.3962 (20 C)
Partition coefficient, pKow
0.0022/K at 20 C
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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.
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.
When working with this chemical, wear a NIOSH-approved full face positive pressure supplied-air respirator or a self-contained breathing apparatus (SCBA).
This chemical should be used in a fume hood. If a leak should occur, the main valve of the gas cylinder should be turned off and all personnel evacuated. Do not reenter the area until the Safety Officer (or other responsible person) has verified that the area has been properly ventilated.
May react vigorously with strong oxidizers Can react exothermically to release gaseous hydrogen May react with oxidizing materials Reacts with alkenes and in the presence of oxygen, combustion is initiated even in the absence of moisture.
May explode on heating. Reacts violently with oxygen and oxidizers, causing fire and explosion hazard.
Upper exp. limit, %
Lower exp. limit, %
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. Vapor is heavier than air and may travel long distances to an ignition source and flash back.
This chemical is flammable.
Vapor is heavier than air and may travel long distances to an ignition source and flash back.
Rapid breathing and rapid heart rate are common. In severe cases abnormally low blood pressure, apnea, and cardiac arrest develop. Various disturbances including headache, dizziness, mood disturbances, numbness of the extremities, sleepiness, mental confusion, poor judgement and coordination, and memory loss may occur. Prolonged or severe hypoxia results in unconsciousness. Prolonged asphyxia may produce CNS injury. Hemiparesis has been reported with volatile substance abuse. Cerebral edema with brainstem herniation may occur. Seizures have been reported following intentional inhalation.
Nausea, vomiting, and gastrointestinal hemorrhage may develop.
Hyperventilation may develop.
Dermal exposure may cause frostbite injury. Severe tissue burns have been reported.
Decreases in night vision, visual acuity, and visual fields (tunnel vision) may occur. Frothy mucous may be seen.
This compound is a gas, therefore inhalation is the first route of exposure.
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.
CAUTION: Exposure of skin to compressed gases may result in freezing of the skin. Treatment for frostbite may be necessary. Remove the victim from the source of contamination. IMMEDIATELY wash affected areas gently with COLD water (and soap, if necessary) while removing and isolating all contaminated clothing. Dry carefully with clean, soft towels. If symptoms such as inflammation or irritation develop, IMMEDIATELY call a physician or go to a hospital for treatment.
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.