MSDS-PROPYLENE
HPG
4344 South Main A Division of BMS, Inc. (281) 482-7007
Pearland, TX 77581 Fax (281) 482-9216
MATERIAL SAFETY DATA SHEET (MSDS) PROPYLENE
PRODUCT D.O.T. SHIPPING NAME Propylene
IDENTIFICATION SYNONYM (S) Propene
DOT. I.D. NUMBER UN-1077
DOT. HAZARD CLASS Flammable Gas
DOT. LABEL(S) Flammable Gas
CA.S. NUMBER 115-07-1
CHEMICAL FORMULA C3H6 or CH3CH: CH2
PHYSICAL DATA MOLECULAR WEIGHT 42.081
FREEZING POINT -185.2掳C, -301.4掳F
BOILING POINT -47.7掳C, -53.9掳F
VAPOR PRESSURE 942 kPa(gauge), 136.5 psig
0.567 m3/kg, 9.06ft3/lb @
SPECIFIC VOLUME
1atm, 21.1掳C
RELATIVE DENSITY, 1.48 @ 1 atm, 20掳C
(air=1)
22.05 cm3/100ml water @
SOLUBILITY IN WATER
1atm, 20掳C
DESCRIPTION At room temperature and atmospheric pressure propylene is a
colorless, flammable, nontoxic gas, with a characteristic natural gas odor. It is
shipped as a liquefied gas under its own vapor pressure
FIRE AND EXPLOSION HAZARD DATA
Flammable Limits in air 2.0 鈥?11.1% by volume
Auto-Ignition Temperature 480.0?C, 896.0? F
FIRE FIGHTING PROCEDURES
The only safe way to extinguish a propylene fire is to stop the
flow of gas. If the flow cannot be stopped, let the fire burn out while
cooling the cylinder and the surroundings using a water spray.
Personnel may have to wear approach type protective suits and positive
pressure self-contained breathing apparatus. Firefighters鈥? turnout gear
may be inadequate.
UNUSUAL HAZARDS
Unstable, material will vigorously polymerize, decompose, condense or
will become self-reactive under conditions of shocks of pressure or
temperature. Static discharge, material can accumulate static charges
which can cause an incendiary electrical discharge. Auto-refrigeration,
drains can become plugged and valves may be come in operable
because of the formation of ice due to expanding vapors or vaporizing
liquids.
1. Cylinders exposed to fire may rupture with violent force. Extinguish surrounding
fire and keep cylinders cool by applying water from a maximum possible distance
with a water spray.
2. Flammable gases may spread from a spill after the fire is extinguished and be
subject to re-ignition.
HEALTH HAZARD DATA
PERMISSIBLE EXPOSURE LIMITS OSHA TWA None established
ACGIH TWA None established
ACUTE EFFECTS OF OVEREXPOSURE Propylene is nontoxic but can act as a
simple asphyxiant by displacing air.
Symptims of asphyxia incldue rapid
respiration, dizziness and fatique.
Contact with the liquid phase or with
the cold gas escaping from a cylinder
may cause frostbite.
CHRONIC EFFECTS OF
OVEREXPOSURE None Known.
FIRST AID INFORMATION
INHALATION Move victim to fresh air. If not
breathing, give artificial respira
tion, preferably mouth
to-mouth. If breathing is
difficult, give oxygen.
Call a physician.
CONTACT Treat for frostbite
REACTIVITY DATA
STABILITY (X)Stable () Unstable
Oxidizing materials.
INCOMPATIBILITY
Carbon monoxide, Carbon
HAZARDOUS DECOMPOSITION
dioxide
/ OXIDATION PRODUCTS
POLYMERIZATION ( ) Will not occur (X) May Occur
SPILL OR LEAKAGE PROCEDURE
Shut off all ignition sources and ventilate the area. For controlling
large flows, personnel may have to wear approach-type protective suits
and positive pressure self-contained breathing apparatus.
PRECAUTIONS
STORAGE
RECOMMENDATIONS Cylinders should be stored and used in
dry, well-ventilated areas away
from sources of heat or ignition. Do not
store with oxidizers.
PERSONAL PROTECTIVE
EQUIPMENT
1. Eye protection 鈥? Safety glasses should be
worn.
2. Respiratory protection - Approved respiratory
equipment must be worn when airborne
concentrations exceed safe levels.
3. Skin protection 鈥? No special equipment is
required. Gloves are recommended for
cylinder handling.
BEFORE USING THE GAS
1. Secure the cylinder to prevent it from falling
or being knocked over.
2. Install check valves or traps to prevent
suckback to the cylinder
3. Ground all lines and equipment
4. Leak check all lines and equipment
5. Have an emergency plan covering steps to be
taken in the event of an accidental release.
DISCLAIMER
The information, recommendations, and suggestions herein were compiled from reference material and other sources
believed to be reliable. However, the MSDS鈥檚 accuracy or completeness is not guaranteed by Specialty Gas Concepts
or its affiliates, nor is any responsibility assumed or implied for any loss or damage resulting from inaccuracies or
omissions. Since conditions of use are beyond our control, no warranties of merchantability or fitness for a particular
purpose are expressed or implied. This MSDS is not intended as a license to operate under, or recommendation to
infringe on, any patents. Appropriate warnings and safe handling procedures should be provided to handlers and
users.
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