MATERIAL SAFETY DATA SHEET (MSDS)
NATURAL GAS CONDENSATE, SWEET
(Hazard Rating: Health-1/Fire-3/Reactivity-1)
IDENTITY (As Used on Label and List)
DOT Hazard Classification: 3
Natural Gas Condensate, Sweet (DOT ID No: UN 3295)
Section I ?Chemical Product and Company Identification
Manufacturer's Name Emergency Phone Number
MARKWEST Markwest (800) 730-8388 / CHEMTREC (800) 424-9300
Address (Number, Street, City, State and ZIP code) Telephone Number for Information:
1515 Arapahoe Street (800) 730-8388
Date Prepared
October 23, 2009
Tower 2, Suite 700
Signature of Preparer (optional)
Denver, Colorado 80202-2126 N/A
Section II ?Hazardous Ingredients/Identity Information
Other Limits
Hazardous Components OSHA PEL ACGIH TLV Recommended % (optional)
(Specific Chemical Identity; Common Name (s))
Hydrogen sulfide (7783-06-4) 10 ppm 10 ppm <0.9
C2 Hydrocarbons (As ethane) NE Simple Asphyxiant 0-5
C3 Hydrocarbons (As propane) 1000 ppm Simple Asphyxiant 0-15
C4 Hydrocarbons (As butane) 800 ppm 800 ppm 0-45
C5 Hydrocarbons (As pentane) 600 ppm 600 ppm 5-70
C6 Hydrocarbons (As n-hexane) 50 ppm (1) 50 ppm (1) 25-95
Cyclohexane (110-82-7) 300 ppm 300 ppm NE
C7 Hydrocarbons (As heptane) 400 ppm 400 ppm 25-95
C 8 Hydrocarbons (As octane) 300 ppm 300 ppm 25-95
Benzene (71-43-2) 1 ppm (2) 10 ppm 0-10 combined
Toluene (108-88-3) 100 ppm 100 ppm 0-10 combined
Mixed xylene (1330-20-7) 100 ppm 100 ppm 0-10 combined
Ethylbenzene (100-41-4) 100 ppm 100 ppm 0-10 combined
Section III ?Physical/Chemical Characteristics
Specific Gravity (H2O = 1):
Boiling Point
0.5-0.7 (Estimated)
Not Established
Vapor Pressure (Reid): Melting Point:
<40 psia at 70oF (20o C) (Estimated) N/A
Vapor Density (AIR = 1): Evaporation Rate
>1 (Butyl Acetate = 1): >1
Solubility in Water:
Negligible
Appearance and Odor:
Colorless to dark liquid and rotten egg odor if hydrogen sulfide is present.
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Section IV ?Fire and Explosion Hazard Data
Flash Point (Method Used): LEL UEL
Flammable Limits
F
% by Volume in Air
Extinguishing Media:
Dry chemical, foam, carbon dioxide
Special Fire Fighting Procedures:
Evacuate area of all unnecessary personnel. Use NIOSH/MSHA approved self-contained breathing apparatus and
other protective equipment and/or garments described in Section C if conditions warrant. Shut off source, if possible.
Water fog or spray may be used to cool exposed equipment and containers Allow fire to burn until gas flow is shut off,
if possible.
Unusual Fire and Explosion Hazards:
Carbon oxides and possibly sulfur oxides formed when burned. Highly flammable vapors which are heavier than air
may accumulate in low areas and/or spread along ground away from handling site.
Section V ?Reactivity Data
Unstable
Stability: Conditions to Avoid:
N/A
Stable X
Incompatibility (Materials to Avoid):
Oxygen and strong oxidizing materials.
Hazardous Decomposition or Byproducts:
Carbon oxides and various hydrocarbons formed when burned. Sulfur oxides may be formed if hydrogen sulfide is
present.
May Occur
Hazardous Conditions to Avoid:
Polymerization N/A
Will Not Occur
X
Section VI ?Health Hazard Data
Route(s) of Entry: Inhalation? Skin? Ingestion?
Inhalation: Toxic by inhalation. Irritation of mucous membranes at lower concentrations can progress to rapid
respiration, drowsiness, labored breathing, pulmonary edema, loss of pulmonary function, lung paralysis,
asphyxiation, unconsciousness and respiratory arrest. Other effects of overexposure include nausea, loss of appetite,
dizziness, disorientation, headache excitation, chronic bronchitis, and other nervous system effects.
Skin: May cause slight irritation. Extreme exposure may produce discoloration, muscle weakness, breathing
difficulties and other central nervous system effects.
Swallowing: May be mildly irritating to intestines. If swallowed, may be aspirated resulting in inflammation and
possible fluid accumulation in the lungs.
Eyes: May cause irritation including pain, blurred vision, redness, tearing and superficial corneal turbidity.
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Health Hazards (Acute or Chronic):
Chronic high level n-hexane exposure damages the nervous system initially producing a lack of feeling in the
extremities and possibly progressing to a more severe nerve damage. Inhalation of high levels (1000 and 5000 ppm) of
n-hexane has produced testicular damage in rats. Mice exposed to the same dose levels showed no testicular effects.
N/A Yes* Yes* OSHA Registered Yes*
Carcinogenicity: NTP? IARC Monographs?
Benzene has been designated as a carcinogen by the National Toxicology Program (NTP), the International Agency for
Research on Cancer (IARC), and the Occupational Safety and Health Administration (OSHA). Benzene may produce
blood changes which include reduced platelets, reduced red blood cells, reduced white blood cells, a plastic anemia,
and acute nonlymphocytic leukemia. Benzene has produced fetal death in laboratory animals and caused chromosome
changes in humans and mutation changes in cells of other organisms.
Signs and Symptoms of Exposure:
Hydrogen sulfide may accumulate in concentrations sufficient to produce toxic effects. The odor of hydrogen sulfide
may not be recognized after prolonged inhalation due to paralysis of the sense of smell.
Medical Conditions Generally Aggravated by Exposure:
Some isoparaffins have produced kidney damage in male rates only. No comparable kidney disease is known to occur
in humans.
Emergency and First Aid Procedures:
If In Eyes: Flush eyes with running water for at least fifteen minutes. If irritation or adverse symptoms develop, seek
medical attention.
If On Skin: Immediately wash skin with soap and water for at least fifteen minutes. If irritation or adverse symptoms
develop, seek medical attention.
If Swallowed: Do not induce vomiting. Seek immediate medical attention.
If Inhaled: Immediately remove from exposure. If breathing is difficult, give oxygen. If breathing ceases, administer
artificial respiration followed by oxygen. Seek immediate medical attention.
Section VII ?Precautions for Safe Handling and Use
Steps to be taken in Case Material is Released or Spilled:
Evacuate area of all unnecessary personnel. Wear protective equipment and/or garments described in Section C if
exposure conditions warrant. Shut off source, if possible. Protect from ignition. Ventilate area thoroughly.
Waste Disposal Method:
Incinerate or otherwise manage at a permitted waste management facility.
Precautions to Be Taken in Handling and Storing:
Do not get in eyes, on skin or on clothing. Do not breathe vapor or mist, may be fatal. Proper personal protective
equipment must be used when handling this chemical. Wash thoroughly after handling. Use only with adequate
ventilation. Immediately remove and launder contaminated clothing before reuse. Do not swallow, may be aspirated
into lungs.
Other Precautions:
Store in a well-ventilated area. Store in tightly closed container. Keep away from heat, sparks, and flames. Bond and
ground during transfer
Section VIII ?Control Measures
Respiratory Protection (Specify Type):
For concentrations exceeding the recommended exposure level, use NIOSH/MSHA approved air supplied respirator.
In case of spill or leak resulting in unknown concentrations, use NIOSH/MSHA approved supplied air respirator.
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Local Exhaust Special
Ventilation:
Mechanical (General) Other
Use adequate ventilation to control exposure below
recommended levels. Monitoring of hydrogen sulfide
air concentrations should be maintained.
Protective Gloves Eye Protection
Polyvinyl alcohol or Buna-N gloves Chemical goggles
Other Protective Clothing or Equipment:
Use full-body, long-sleeved garments.
Work/Hygienic Practices
N/A
N/A ?Not Applicable
N/D ?Not Determined
~ -- Approximately
* -- Based on LP (Gas)
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