MSDS Name:   n-Heptane, ECD tested for pesticide analysis, sulfur low, 99.4+%
Synonym:   n-Heptane; Normal heptane.
Company:   AboutChem.com

**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 108-87-2 |Methylcyclohexane | 0.2 | 203-624-3 |
|----------------|--------------------------------------|----------|-----------|
| 142-82-5 |n-Heptane | >99.4 | 205-563-8 |
|----------------|--------------------------------------|----------|-----------|
| 26635-64-3 |Isooctane | 0.1 | 247-861-0 |
|----------------|--------------------------------------|----------|-----------|
| 28729-52-4 |Dimethylcyclopentane | 0.1 | 249-193-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN F N
Risk Phrases: 11 38 50/53 65 67

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Highly flammable. Irritating to skin. Very toxic to aquatic
organisms; may cause long-term adverse effects in the aquatic
environment. Harmful: may cause lung damage if swallowed. Vapors may
cause drowsiness and dizziness.Dangerous for the environment.

Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Prolonged and/or repeated contact may cause
defatting of the skin and dermatitis.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and
diarrhea. Aspiration of material into the lungs may cause chemical
pneumonitis, which may be fatal.
Inhalation:
Inhalation of high concentrations may cause central nervous system
effects characterized by nausea, headache, dizziness, unconsciousness
and coma. Causes respiratory tract irritation. Aspiration may lead to
pulmonary edema. Vapors may cause dizziness or suffocation.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Effects may
be delayed.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid. Flush skin with plenty of soap and water for at
least 15 minutes while removing contaminated clothing and shoes. Wash
clothing before reuse.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Possible aspiration hazard. Get medical aid
immediately.
Inhalation:
Get medical aid immediately. Remove from exposure to fresh air
immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Do NOT use mouth-to-mouth
resuscitation.
Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Use water spray to keep fire-exposed containers
cool. Water may be ineffective. Material is lighter than water and a
fire may be spread by the use of water. Containers may explode in
the heat of a fire. Flammable liquid and vapor. Will be easily
ignited by heat, sparks or flame. Vapors are heavier than air and may
travel to a source of ignition and flash back. Vapors can spread
along the ground and collect in low or confined areas.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or
alcohol-resistant foam. For large fires, use water spray, fog, or
alcohol-resistant foam. Water may be ineffective. Do NOT use
straight streams of water. Cool containers with flooding quantities
of water until well after fire is out.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Avoid runoff into storm sewers and
ditches which lead to waterways. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Use a spark-proof tool. Provide ventilation. A
vapor suppressing foam may be used to reduce vapors.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Ground and bond containers when
transferring material. Use spark-proof tools and explosion proof
equipment. Avoid contact with eyes, skin, and clothing. Empty
containers retain product residue, (liquid and/or vapor), and can be
dangerous. Keep container tightly closed. Avoid contact with heat,
sparks and flame. Do not pressurize, cut, weld, braze, solder, drill,
grind, or expose empty containers to heat, sparks or open flames. Use
only with adequate ventilation. Avoid breathing vapor.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances.
Flammables-area.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits.
Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear neoprene gloves, apron, and/or clothing. Use
polyvinyl alcohol or fluorocarbon rubber (viton)
gloves.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
1910.134 or European Standard EN 149. Always use a
NIOSH or European Standard EN 149 approved respirator
when necessary.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Liquid
Appearance: clear, colorless
Odor: mild odor - gasoline-like
pH: Not available.
Vapor Pressure: 40.0 mm Hg
Viscosity: Not available.
Boiling Point: 209 deg F
Freezing/Melting Point: -131 deg F
Autoignition Temperature: 399 deg F ( 203.89 deg C)
Flash Point: 25 deg F ( -3.89 deg C)
Explosion Limits, lower: 1.05
Explosion Limits, upper: 6.7
Decomposition Temperature: Not available.
Solubility in water: Negligible.
Specific Gravity/Density: 0.696 (Water=1)
Molecular Formula: CH3(CH2)5CH3
Molecular Weight: 100.2

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Ignition sources, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 108-87-2: GV6125000
CAS# 142-82-5: MI7700000
CAS# 26635-64-3 unlisted.
CAS# 28729-52-4 unlisted.
LD50/LC50:
CAS# 108-87-2: Inhalation, mouse: LC50 = 41500 mg/m3/2H; Inhalation,
rabbit: LC50 = 15227 ppm/1H; Oral, mouse: LD50 = 2250 mg/kg.
CAS# 142-82-5: Inhalation, rat: LC50 = 103 gm/m3/4H.
CAS# 26635-64-3.
CAS# 28729-52-4.
Carcinogenicity:
Methylcyclohexane -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
n-Heptane -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Isooctane -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Dimethylcyclopentane -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Fish: Goldfish: LC50 = 4.0 mg/L; 24 Hr.; UnspecifiedFish: Mosquito
Fish: LC50 = 4900 mg/L; 24 Hr.; UnspecifiedFish: LC50 = 4900 mg/L;
24 Hr.; Unspecified
Other
For more information, see "HANDBOOK OF ENVIRONMENTAL FATE AND
EXPOSURE DATA."

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Shipping Name: Heptanes
Hazard Class: 3
UN Number: 1206
Packing Group: II
IMO
Shipping Name: Heptanes
Hazard Class: 3
UN Number: 1206
Packing Group: II
RID/ADR
Shipping Name: Heptanes
Dangerous Goods Code: 3
UN Number: 1206

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN F N
Risk Phrases:
R 11 Highly flammable.
R 38 Irritating to skin.
R 50/53 Very toxic to aquatic organisms; may cause
long-term adverse effects in the aquatic environment.
R 65 Harmful: may cause lung damage if swallowed.
R 67 Vapors may cause drowsiness and dizziness.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 29 Do not empty into drains.
S 33 Take precautionary measures against static
discharges.
S 60 This material and/or its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/Safety data sheets.
WGK (Water Danger/Protection)
CAS# 108-87-2: 1
CAS# 142-82-5: 1
CAS# 26635-64-3: 0
CAS# 28729-52-4: No information available.
United Kingdom Occupational Exposure Limits

Canada
CAS# 108-87-2 is listed on Canada's DSL List.
CAS# 142-82-5 is listed on Canada's DSL List.
CAS# 26635-64-3 is listed on Canada's NDSL List.
CAS# 108-87-2 is listed on Canada's Ingredient Disclosure List.
CAS# 142-82-5 is listed on Canada's Ingredient Disclosure List.
CAS# 26635-64-3 is not listed on Canada's Ingredient Disclosure List.
CAS# 28729-52-4 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 108-87-2: OEL-AUSTRALIA:TWA 400 ppm (1600 mg/m3)
OEL-BELGIUM:TWA 400 ppm (1610 mg/m3)
OEL-DENMARK:TWA 400 ppm (1600 mg/m3)
OEL-FINLAND:TWA 400 ppm (1600 mg/m3);STEL 500 ppm (2000 mg/m3)
OEL-FRANCE:TWA 400 ppm (1600 mg/m3)
OEL-GERMANY:TWA 500 ppm (2000 mg/m3)
OEL-JAPAN:TWA 400 ppm (1600 mg/m3)
OEL-THE NETHERLANDS:TWA 400 ppm (1600 mg/m3) JAN9
OEL-THE PHILIPPINES:TWA 500 ppm (2000 mg/m3) JAN9
OEL-POLAND:TWA 500 mg/m3
OEL-RUSSIA:TWA 400 ppm;STEL 50 mg/m3
OEL-SWITZERLAND:TWA 400 ppm (1600 mg/m3);STEL 800 ppm
OEL-TURKEY:TWA 500 ppm (2000 mg/m3)
OEL-UNITED KINGDOM:TWA 400 ppm (1600 mg/m3);STEL 500 ppm
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
CAS# 142-82-5: OEL-AUSTRALIA:TWA 400 ppm (1600 mg/m3);STEL 500 ppm (20
00 mg/m3)
OEL-BELGIUM:TWA 400 ppm (1640 mg/m3);STEL 500 ppm (2050 mg/m3)
OEL-DENMARK:TWA 400 ppm (1600 mg/m3)
OEL-FINLAND:TWA 300 ppm (1200 mg/m3);STEL 500 ppm (2000 mg/m3)
OEL-FRANCE:TWA 400 ppm (1600 mg/m3)
OEL-GERMANY:TWA 500 ppm (2000 mg/m3)
OEL-JAPAN:TWA 200 ppm (820 mg/m3)
OEL-THE NETHERLANDS:TWA 400 ppm (1600 mg/m3) JAN9
OEL-THE PHILIPPINES:TWA 500 ppm (2000 mg/m3) JAN9
OEL-POLAND:TWA 200 mg/m3
OEL-RUSSIA:TWA 200 ppm
OEL-SWEDEN:TWA 200 ppm (800 mg/m3);STEL 300 ppm (1250 mg/m3)
OEL-SWITZERLAND:TWA 400 ppm (1600 mg/m3);STEL 800 ppm
OEL-TURKEY:TWA 500 ppm (2000 mg/m3)
OEL-UNITED KINGDOM:TWA 400 ppm (1600 mg/m3);STEL 500 ppm
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 108-87-2 is listed on the TSCA inventory.
CAS# 142-82-5 is listed on the TSCA inventory.
CAS# 26635-64-3 is listed on the TSCA inventory.
CAS# 28729-52-4 is not listed on the TSCA inventory.
It is for research and development use only.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 10/16/1998 Revision #6 Date: 9/27/2001

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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