**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 100-42-5 |Styrene | >99 | 202-851-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN
Risk Phrases: 10 36/38 20
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Flammable. Irritating to eyes and skin. Harmful by inhalation.
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
dermatitis.
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.
Chronic:
No information found.
**** 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.
Skin:
Flush skin with plenty of 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:
Call a poison control center. If swallowed, do not induce vomiting
unless directed to do so by medical personnel. Never give anything by
mouth to an unconscious person. Get medical aid.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:
Treat symptomatically and supportively.
**** 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. 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 ****
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. Clean up spills immediately,
observing precautions in the Protective Equipment section. Use a
spark-proof tool. Provide ventilation.
**** SECTION 7 - HANDLING and STORAGE ****
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 4C/39F.) Keep containers tightly closed.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne
concentrations below the permissible exposure limits.
Exposure Limits
CAS# 100-42-5:
United Kingdom, WEL - TWA: 100 ppm TWA; 430 mg/m3 TWA
United Kingdom, WEL - STEL: 250 ppm STEL; 1080 mg/m3 STEL
United States OSHA: 100 ppm TWA; 200 ppm Ceiling
Belgium - TWA: 50 ppm VLE; 216 mg/m3 VLE
Belgium - STEL: 100 ppm VLE; 432 mg/m3 VLE
France - VME: 50 ppm VME; 215 mg/m3 VME
Germany: 20 ppm TWA; 86 mg/m3 TWA
Japan: 20 ppm OEL; 85 mg/m3 OEL
Malaysia: 20 ppm TWA; 85.2 mg/m3 TWA
Netherlands: 25 ppm MAC; 107 mg/m3 MAC
Russia: 30 mg/m3 TWA
Russia: 10 mg/m3 STEL
Spain: 20 ppm VLA-ED; 86 mg/m3 VLA-ED
Spain: 40 ppm VLA-EC; 172 mg/m3 VLA-EC
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 minimize
contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: clear, colorless
Odor: pungent odor
pH: Not available.
Vapor Pressure: 568 mm Hg
Viscosity: 0.751 mPa
Boiling Point: 293 deg F
Freezing/Melting Point: -23 deg F
Autoignition Temperature: 914 deg F ( 490.00 deg C)
Flash Point: 32 deg C ( 89.60 deg F)
Explosion Limits, lower: 1.1% v/v
Explosion Limits, upper: 7.0% v/v
Decomposition Temperature: Not available.
Solubility in water: Practically insoluble in water
Specific Gravity/Density: 0.9060
Molecular Formula: C8 H8
Molecular Weight: 104.1
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical 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 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 100-42-5: WL3675000
LD50/LC50:
CAS# 100-42-5: Draize test, rabbit, eye: 100 mg Severe; Draize test,
rabbit, eye: 100 mg/24H Moderate; Draize test, rabbit, skin: 100%
Moderate; Inhalation, mouse: LC50 = 21000 mg/m3/2H; Inhalation,
mouse: LC50 = 9500 mg/m3/4H; Inhalation, rat: LC50 = 11800 mg/m3/4H;
Oral, mouse: LD50 = 316 mg/kg; Oral, rat: LD50 = 2650 mg/kg; Oral,
rat: LD50 = 5000 mg/kg.
Carcinogenicity:
Styrene -
IARC: Group 2B carcinogen
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
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; Unspecified Bioassay.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: STYRENE MONOMER, INHIBITED
Hazard Class: 3
UN Number: 2055
Packing Group: III
IMO
Shipping Name: STYRENE MONOMER, INHIBITED
Hazard Class: 3.3
UN Number: 2055
Packing Group: III
RID/ADR
Shipping Name: STYRENE MONOMER, INHIBITED
Hazard Class: 3
UN Number: 2055
Packing group: III
USA RQ: CAS# 100-42-5: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 10 Flammable.
R 20 Harmful by inhalation.
R 36/38 Irritating to eyes and skin.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
WGK (Water Danger/Protection)
CAS# 100-42-5: 2
Canada
CAS# 100-42-5 is listed on Canada's DSL List.
CAS# 100-42-5 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 100-42-5 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 4/28/1999 Revision #4 Date: 2/02/2005
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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