Material Safety Data
Styrene Monomer, Inhibited
Section 1 - Chemical Product and Company
MSDS Name: Styrene Monomer, Inhibited
Catalog Numbers: O4507-1
Ethenylbenzene; Cinnamene; Cinnamenol; Ethenylbenzene; Phenethylene; Styrol;
1 Reagent Lane
Fair Lawn, NJ 07410
For information, call: 201-796-7100
Emergency Number: 201-796-7100
For CHEMTREC assistance,
For International CHEMTREC assistance, call:
Section 2 -
Composition, Information on Ingredients
Risk Phrases: 10 36/38 20
Section 3 - Hazards
Appearance: clear, colorless. Flash Point: 88 deg F.
Warning! Flammable liquid and vapor. Aspiration
hazard if swallowed. Can enter lungs and cause damage. May cause eye and skin
irritation. May cause respiratory and digestive tract irritation. May cause
central nervous system depression. May cause reproductive and fetal effects. May
cause cancer based on animal studies. Uninhibited material may form explosive
Target Organs: Central nervous system.
Potential Health Effects
Eye: Causes eye irritation.
Skin: May be absorbed through the skin in harmful amounts.
Prolonged and/or repeated contact may cause defatting of the skin and
Ingestion: 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. Aspiration of material into
the lungs may cause chemical pneumonitis, which may be fatal.
Inhalation: Aspiration may cause respiratory swelling and
pneumonitis. Causes narcotic effects including headache, dizziness, weakness,
unconsciousness, and possible death.
Section 4 - First Aid
Eyes: Immediately flush eyes with plenty of water
for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get
Skin: Flush skin with plenty of soap and water
for at least 15 minutes while removing contaminated clothing and shoes. Get
medical aid if irritation develops or persists. 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. Get medical aid immediately. If conscious drink water, then
induce vomiting. If unconscious, immediately take victim to a physician and do
NOT attempt to induce vomiting.
Inhalation: Get medical aid
immediately. Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician: Treat symptomatically
Antidote: None reported.
Section 5 - Fire
Information: As in any fire, wear a self-contained breathing apparatus
in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective
gear. Vapors may form an explosive mixture with air. Flammable Liquid. Can
release vapors that form explosive mixtures at temperatures above the
flashpoint. Containers may explode in the heat of a fire.
Extinguishing Media: This material is lighter than water
and insoluble in water. The fire could easily be spread by the use of water in
an area where the water cannot be contained. Use water fog, dry chemical, carbon
dioxide, or regular foam.
Section 6 -
Accidental Release Measures
Information: Use proper personal protective equipment as indicated in
Spills/Leaks: Absorb spill with inert material
(e.g. vermiculite, sand or earth), then place in suitable container. Clean up
spills immediately, observing precautions in the Protective Equipment section.
Use a spark-proof tool. Provide ventilation.
Section 7 - Handling
Handling: Wash thoroughly after handling. Remove
contaminated clothing and wash before reuse. Use only in a well-ventilated area.
Ground and bond containers when transferring material. Use spark-proof tools and
explosion proof equipment. Avoid contact with skin and eyes. Empty containers
retain product residue, (liquid and/or vapor), and can be dangerous. Take
precautionary measures against static discharges. Avoid ingestion and
inhalation. Wash clothing before reuse. Do not pressurize, cut, weld, braze,
solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage: Keep away from sources of ignition. Store in a
cool place in the original container and protect from sunlight. Keep
refrigerated. (Store below 4°C/39°F.) Keep containers tightly closed.
Section 8 - Exposure
Controls, Personal Protection
Controls: Use adequate general or local exhaust ventilation to keep
airborne concentrations below the permissible exposure limits.
||20 ppm TWA; 40 ppm STEL
||50 ppm TWA; 215 mg/m3 TWA 700 ppm IDLH
||100 ppm TWA; C 200
OSHA Vacated PELs: Styrene: 50
ppm TWA; 215 mg/m3 TWA; 100 ppm STEL; 425 mg/m3 STEL
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
Clothing: Wear appropriate protective clothing to
minimize contact with skin.
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
Appearance: clear, colorless
Odor: pungent odor
pH: Not available.
Vapor Pressure: 568 mm Hg
Density: 1.22 Kg/m3
Evaporation Rate:0.5 (Butyl Acetate=1)
Viscosity: 0.751 mPa
Boiling Point: 293 deg F
Freezing/Melting Point:-23 deg F
914 deg F ( 490.00 deg C)
Flash Point: 88 deg F ( 31.11 deg C)
Decomposition Temperature:Not available.
(estimated) Health: 2; Flammability: 3; Reactivity: 2
Upper: 7.0% v/v
insoluble in water
Section 10 -
Stability and Reactivity
Stability: Stable under normal temperatures and pressures. May form
peroxides in the absence of inhibitors.
Conditions to Avoid:
Incompatible materials, ignition sources.
Incompatibilities with Other
Materials: Vapor is explosive when exposed to heat or flame and reacts with
oxygen at temperatures above 104 F, unhibited material may form explosive
peroxides. Uninhibited material may polymerize which becomes self-sustaining at
temperatures above 65 C. Exposure to butyllithium, dibenzoyl peroxide,
azoisobutyronitrile or di-tert-butylperoxide may cause violent polymerization.
Violent reaction with chlorosulfonic acid, oleum, sulfuric acid and oxidizers.
Oxygen + heat is explosive.
Hazardous Decomposition Products: Carbon
monoxide, carbon dioxide.
Hazardous Polymerization: May occur.
Section 11 -
CAS# 100-42-5: WL3675000
Draize test, rabbit, eye: 100 mg Severe;
Draize test, rabbit,
eye: 100 mg/24H Moderate;
Draize test, rabbit, skin: 100%
Inhalation, mouse: LC50 = 9500 mg/m3/4H;
Inhalation, rat: LC50 =
Oral, mouse: LD50 = 316 mg/kg;
Oral, rat: LD50 = 2650
A4 - Not Classifiable as a Human Carcinogen
OSHA: Possible Select
IARC: Group 2B carcinogen
(Inhalation, rat) = 293 ppm/6H; Reproductive - Effects on Newborn - behavioral.
Teratogenicity: TCLo - Lowest published toxic
concentration(Inhalation,rat)= 300 ppm/6H; Lungs, Thorax, or Respiration -
structural or functional change in trachea or bronchi; Lungs, Thorax, or
Respiration - other changes; Liver - other changes.
Effects: RTECs reports reproductive effects in animals such as effects on
weaning/lactation index, naternal effects, fetoxitity, stillbirth and
post-implantation mortality. TCLo (Inhalation, rat) = 293 ppm/6H; Reproductive -
Effects on Newborn - behavioral.
Neurotoxicity: No information
Mutagenicity: An increased incidence of mutations such as
chromosome aberrations and micronuclei in peripheral lymphocytes has been
reported in workers exposed occupationally. Some studies have found a slight
increase in the incidence of sister chromatid exchanges while no increase has
been found in several other studies.Mutation in microorganisms(Salmonella
typhimurium) =1 umol/plate(Yeast - Saccharomyces cerevisiae) =1 mmol/L.
Other Studies: IARC has determined that there is inadequate evidence
for carcinogenicity in humans. Three studies have sugg ested an association
between leukaemia and lymph omas with exposure to styrene. Other studies have sh
own no excess in mortality from cancer in humans. IARC has determined there is
sufficient evidence of carcinogen icity in animals.Standard Draize
test(skin,rabbit) = 100%; Moderate.Standard Draize test(eye,rabbit) = 100 mg;
Section 12 -
data available. Cas# 100-42-5:LC50(96Hr.)Fathead Minnow = 46.4` mg/L; Static
Bioassay Softwater.LC50(96Hr.)Fathead Minnow = 59.30 mg/L; Static Bioassay,
Hardwater.LC50(96Hr.)Bluegill = 25.05 mg/L; Static Bioassay,
Softwater.LC50(96Hr.)Goldfish = 64.74 mg/L; Static Bioassay, water.LC50(48Hr.)
Water flea = 23.0 mg/L, Unspecified Bioassay.EC50(48Hr.) Water flea = 23.0 mg/L;
Environmental: Styrene does not absorb solar
radiation at wavelengths above the solar cutoff (approximately 300 nm);
therefore, it will not be directly photolyzed in the lower atmosphere
(troposphere) or surface water. However, styrene is expected to be involved in
indirect photochemical reactions. Styrenes have been found to be very active
generators of photochemical smog.
Physical: Styrene released to soil
is subject to biodegradation. Volatilization and biodegradation are important
transport and degradation processes respectively for styrene in water.
Other: No information available.
Section 13 - Disposal
Chemical waste generators
must determine whether a discarded chemical is classified as a hazardous waste.
US EPA guidelines for the classification determination are listed in 40 CFR
Parts 261.3. Additionally, waste generators must consult state and local
hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.
Section 14 -
||No information available.
Section 15 -
CAS# 100-42-5 is listed on the TSCA
Health & Safety Reporting List
None of the
chemicals are on the Health & Safety Reporting List.
None of the chemicals in this product are under a Chemical Test
None of the chemicals are listed under TSCA
TSCA Significant New Use Rule
None of the chemicals
in this material have a SNUR under TSCA.
CAS# 100-42-5: final RQ = 1000 pounds (454 kg)
None of the chemicals in this product have a TPQ.
CAS # 100-42-5: acute, chronic, flammable, reactive.
This material contains Styrene (CAS# 100-42-5, 99 0%),which is
subject to the reporting requirements of Section 313 of SARA Title III and 40
CFR Part 373.
Clean Air Act:
CAS# 100-42-5 is listed as a
hazardous air pollutant (HAP). This material does not contain any Class 1 Ozone
depletors. This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
CAS# 100-42-5 is listed as a Hazardous Substance
under the CWA. None of the chemicals in this product are listed as Priority
Pollutants under the CWA. None of the chemicals in this product are listed as
Toxic Pollutants under the CWA.
None of the chemicals in
this product are considered highly hazardous by OSHA.
100-42-5 can be found on the following state right to know lists: California,
New Jersey, Florida, Pennsylvania, Minnesota, Massachusetts.
Significant Risk Level: None of the chemicals in this product are listed.
European Labeling in
Accordance with EC Directives
R 10 Flammable.
R 36/38 Irritating to eyes and skin.
20 Harmful by inhalation.
S 23 Do not inhale
WGK (Water Danger/Protection)
CAS# 100-42-5 is listed on Canada's DSL List.
CAS# 100-42-5 is listed on Canada's DSL List.
This product has a WHMIS
classification of B2, D2A, F.
CAS# 100-42-5 is listed on Canada's Ingredient
CAS# 100-42-5: OEL-AUSTRALIA:TWA
50 ppm (215 mg/m3);STEL 100 ppm (42
5 mg/m3) OEL-BELGIUM:TWA 50 ppm (213
mg/m3);STEL 100 ppm (426 mg/m3);
Skin OEL-CZECHOSLOVAKIA:TWA 200 mg/m3;STEL
1000 mg/m3 OEL-DENMARK:TW
A 25 ppm (105 mg/m3) OEL-FINLAND:TWA 20 ppm (85
mg/m3);STEL 100 ppm (
420 mg/m3) OEL-FRANCE:TWA 50 ppm (215 mg/m3)
OEL-GERMANY:TWA 20 ppm
(85 mg/m3) OEL-HUNGARY:STEL 50 mg/m3;Carcinogen
OEL-JAPAN:TWA 50 ppm
(210 mg/m3) OEL-THE NETHERLANDS:TWA 100 ppm (420 mg/m3)
LIPPINES:TWA 100 ppm (420 mg/m3) OEL-POLAND:TWA 100 mg/m3
:TWA 25 ppm (110 mg/m3);STEL 75 ppm (30 mg/m3);Skin
WA 50 ppm (215 mg/m3);STEL 100 ppm (430 mg/m3)
OEL-THAILAND:TWA 100 p
pm;STEL 200 ppm OEL-TURKEY:TWA 100 ppm (420 mg/m3)
M:TWA 100 ppm (420 mg/m3);STEL 260 ppm OEL IN BULGARIA,
DAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE,
ck ACGI TLV
Section 16 -
MSDS Creation Date:
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
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for lost profits or any special, indirect, incidental, consequential or
exemplary damages, howsoever arising, even if Fisher has been advised of the
possibility of such damages.