**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 71-43-2 |Benzene | 99+ | 200-753-7 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T F
Risk Phrases: 11 45 48/23/24/25
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Highly flammable. May cause cancer. Toxic : danger of serious damage
to health by prolonged exposure through inhalation, contact with skin
and if swallowed.
Potential Health Effects
Eye:
Causes severe eye irritation. May cause slight transient injury.
Skin:
Causes moderate skin irritation. May be absorbed through the skin in
harmful amounts. Direct contact with the liquid may cause erythema
(redness) and vesiculation (blistering). Prolonged or repeated
contact has been associated with the development of a dry scaly
dermatitis or with secondary infections.
Ingestion:
Aspiration hazard. May cause central nervous system depression,
characterized by excitement, followed by headache, dizziness,
drowsiness, and nausea. Advanced stages may cause collapse,
unconsciousness, coma and possible death due to respiratory failure.
May cause effects similar to those for inhalation exposure.
Aspiration of material into the lungs may cause chemical
pneumonitis, which may be fatal.
Inhalation:
Causes respiratory tract irritation. May cause adverse central
nervous system effects including headache, convulsions, and possible
death. May cause drowsiness, unconsciousness, and central nervous
system depression. Central nervous system effects may include
confusion, ataxia, vertigo, tinnitus, weakness, disorientation,
lethargy, drowsiness, and finally coma. Exposure may lead to
irreversible bone marrow injury. Exposure may lead to aplastic
anemia. May be absorbed through the lungs.
Chronic:
Possible cancer hazard based on tests with laboratory animals.
Prolonged or repeated exposure may cause adverse reproductive
effects. May cause bone marrow abnormalities with damage to blood
forming tissues. May cause anemia and other blood cell abnormalities.
Chronic exposure has been associated with an increased incidence of
leukemia and multiple myelomas. Immunodepressive effects have been
reported. Animal studies have reported fetotoxicity (growth
retardation) and teratogenicity (exencephaly, angulated ribs, dilated
brain ventricles).
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Immediately 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 immediately. Immediately 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. Never give anything by mouth to an
unconscious person. Possible aspiration hazard. Get medical aid
immediately.
Inhalation:
Get medical aid immediately. Remove from exposure to fresh air
immediately. If breathing is difficult, give oxygen. Do NOT use
mouth-to-mouth resuscitation. If breathing has ceased apply
artificial respiration using oxygen and a suitable mechanical device
such as a bag and a mask.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
Containers can build up pressure if exposed to heat and/or fire. As
in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Water runoff can cause environmental damage. Dike
and collect water used to fight fire. Vapors can travel to a source
of ignition and flash back. Extremely flammable. Material will
readily ignite at room temperature. Use water spray to keep
fire-exposed containers cool. Containers may explode in the heat of a
fire. Vapors may be heavier than air. They can spread along the
ground and collect in low or confined areas. Vapors may form an
explosive mixture with air.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Water may be
ineffective. Do NOT use straight streams of water. For large fires,
use water spray, fog or regular foam. For small fires, use dry
chemical, carbon dioxide, water spray or regular foam. 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:
Use water spray to dilute spill to a non-flammable mixture. Avoid
runoff into storm sewers and ditches which lead to waterways. Use
water spray to disperse the gas/vapor. Remove all sources of
ignition. Absorb spill using an absorbent, non-combustible material
such as earth, sand, or vermiculite. Do not use combustible materials
such as saw dust.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Ground and bond containers when transferring
material. Do not breathe dust, vapor, mist, or gas. Do not get in
eyes, on skin, or on 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
ingest or inhale. Use only in a chemical fume hood. Do not
pressurize, cut, weld, braze, solder, drill, grind, or expose empty
containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Store in a tightly closed container. Keep from contact
with oxidizing materials. Store in a cool, dry, well-ventilated area
away from incompatible substances.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or
utilizing this material should be equipped with an eyewash facility
and a safety shower. Use only under a chemical fume hood.
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 appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR ??1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant a respirator's use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Appearance: colorless liquid
Odor: sweetish odor - aromatic odor
pH: Not available.
Vapor Pressure: 74.3 mm Hg @ 20 deg C
Viscosity: 0.647mPa @ 20 deg C
Boiling Point: 80 deg C
Freezing/Melting Point: 6 deg C
Autoignition Temperature: 561 deg C ( 1,041.80 deg F)
Flash Point: -11 deg C ( 12.20 deg F)
Explosion Limits, lower: 1.3 vol %
Explosion Limits, upper: 7.1 vol %
Decomposition Temperature: Not available.
Solubility in water: Slightly soluble.
Specific Gravity/Density: 0.874
Molecular Formula: C6H6
Molecular Weight: 78.042
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Chlorine, oxygen, ozone, permanganates, sulfuric acid, peroxides,
parachlorates, nitrating agents, nitric acid, chromic acid anhydride,
chromium trioxide, iodine pentafluoride, iodine heptafluoride,
dioxygenyl tetrafluoroborate, dioxygen difluoride + hydrogen
fluoride, sodium peroxide, uranium hexafluoride, bromine
pentafluoride, chlorine trifluoride, nitryl perchlorate, aresenic
pentafluoride, potassium methoxide, permanganic acid,
peroxodisulfuric acid, liquid oxygen, peroxomonosulfuric acid, metal
perchlorates, strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 71-43-2: CY1400000
LD50/LC50:
CAS# 71-43-2: Dermal, guinea pig: LD50 = >9400 uL/kg; Draize test,
rabbit, eye: 88 mg Moderate; Draize test, rabbit, eye: 2 mg/24H
Severe; Draize test, rabbit, skin: 20 mg/24H Moderate; Inhalation,
mouse: LC50 = 9980 ppm; Inhalation, rat: LC50 = 10000 ppm/7H; Oral,
mouse: LD50 = 4700 mg/kg; Oral, rat: LD50 = 930 mg/kg; Skin, rabbit:
LD50 = >9400 uL/kg.
Carcinogenicity:
Benzene -
ACGIH: A1 - Confirmed Human Carcinogen
California: carcinogen; initial date 2/27/87
NIOSH: occupational carcinogen
NTP: Known carcinogen
OSHA: Select carcinogen
IARC: Group 1 carcinogen
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish: Mosquito Fish: TLm = 395 mg/L; 24 Hr; UnspecifiedFish:
Goldfish: LC50 =46 mg/L; 24 Hr; Modified ASTM D 1345Fish: Fathead
Minnow: LC50 = 15.1 mg/L; 96 Hr; Flow-through at 25C (pH
7.9-8.0)Fish: Rainbow trout: LC50 = 5.3 mg/L; 96 Hr; Flow-through at
25C (pH 7.9-8.0)Fish: Bluegill/Sunfish: LD50 = 20 mg/L; 24-48 Hr;
UnspecifiedIf benzene is released to soil, it will be subject to
rapid volatilization near the surface and that which does not
evaporate will be highly to very highly mobile in the soil and may
leach to groundwater. If benzene is released to water, it will be
subject to rapid volatilization. It will not be expected to
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: BENZENE
Hazard Class: 3
UN Number: 1114
Packing Group: II
IMO
Shipping Name: BENZENE
Hazard Class: 3.2
UN Number: 1114
Packing Group: II
RID/ADR
Shipping Name: BENZENE
Dangerous Goods Code: 3(3B)
UN Number: 1114
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T F
Risk Phrases:
R 11 Highly flammable.
R 45 May cause cancer.
R 48/23/24/25 Toxic : danger of serious damage to
health by prolonged exposure through inhalation,
contact with skin and if swallowed.
Safety Phrases:
S 53 Avoid exposure - obtain special instructions
before use.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 71-43-2: 3
United Kingdom Occupational Exposure Limits
Canada
CAS# 71-43-2 is listed on Canada's DSL List.
CAS# 71-43-2 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 71-43-2: OEL-AUSTRALIA:TWA 5 ppm (16 mg/m3);Carcinogen
OEL-BELGIUM:TWA 10 ppm (32 mg/m3);Carcinogen JAN9
OEL-CZECHOSLOVAKIA:TWA 10 mg/m3;STEL 20 mg/m3
OEL-DENMARK:TWA 5 ppm (16 mg/m3);Skin;Carcinogen
OEL-FINLAND:TWA 5 ppm (15 mg/m3);STEL 10 ppm (30 mg/m3);Skin;CAR
OEL-FRANCE:TWA 5 ppm (16 mg/m3);Carcinogen
OEL-GERMANY;Skin;Carcinogen
OEL-HUNGARY:STEL 5 mg/m3;Skin;Carcinogen
OEL-INDIA:TWA 10 ppm (30 mg/m3);Carcinogen
OEL-JAPAN:TWA 10 ppm (32 mg/m3);STEL 25 ppm (80 mg/m3);CAR
OEL-THE NETHERLANDS:TWA 10 ppm (30 mg/m3);Skin
OEL-THE PHILIPPINES:TWA 25 ppm (80 mg/m3);Skin
OEL-POLAND:TWA 30 mg/m3;Skin
OEL-RUSSIA:TWA 10 ppm (5 mg/m3);STEL 25 ppm (15 mg/m3);Skin;CAR
OEL-SWEDEN:TWA 1 ppm (3 mg/m3);STEL 5 ppm (16 mg/m3);Skin;CAR
OEL-SWITZERLAND:TWA 5 ppm (16 mg/m3);Skin;Carcinogen
OEL-THAILAND:TWA 10 ppm (30 mg/m3);STEL 25 ppm (7 mg/m3)
OEL-TURKEY:TWA 20 ppm (64 mg/m3);Skin
OEL-UNITED KINGDOM:TWA 10 ppm (30 mg/m3)
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 71-43-2 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 6/11/1999 Revision #2 Date: 8/02/2000
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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