**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 94-36-0 |Benzoyl peroxide | 67.0-70. | 202-327-6 |
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | Balance | 231-791-2 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XI E
Risk Phrases: 2 36 43
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Risk of explosion by shock, friction, fire or other sources of
ignition. Irritating to eyes. May cause sensitization by skin
contact.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May cause skin sensitization, an allergic
reaction, which becomes evident upon re-exposure to this material.
Prolonged and/or repeated contact may cause defatting of the skin and
dermatitis.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
Dust is irritating to the respiratory tract. May cause respiratory
tract irritation.
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
immediately.
Skin:
Get medical aid. Flush skin with plenty of soap and water for at
least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical
aid immediately. Do NOT induce vomiting. If conscious and alert,
rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid.
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. Strong oxidizer. Contact with combustible materials
may cause a fire. Will burn if involved in a fire. This material
poses an explosion hazard when dry. Flammable solid. This material
is an explosion hazard when exposed to heat, mechanical shock,
friction or when agitated.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use water spray,
dry chemical, carbon dioxide, or chemical foam. Do NOT use
halogenated agents.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Remove all sources of ignition. Provide ventilation. Do not use
combustible materials such as paper towels to clean up spill. Use
only non-sparking tools and equipment. In the event of spillage,
spilled material should be mixed with water-wetted vermiculite, swept
up, and placed in a container for immediate disposal.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Use with adequate ventilation. 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.
Avoid ingestion and inhalation. Use caution when opening. Can
explode without warning when caps of old containers are unscrewed.
Do not pressurize, cut, weld, braze, solder, drill, grind, or expose
empty containers to heat, sparks or open flames.
Storage:
Keep away from heat and flame. Do not store in direct sunlight.
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep
refrigerated. (Store below 4C/39F.)
**** 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 appropriate protective gloves to prevent skin
exposure.
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: Powder
Appearance: white
Odor: weak odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 104-106 deg C
Autoignition Temperature: 380 deg C ( 716.00 deg F)
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Insoluble in water.
Specific Gravity/Density: Not available.
Molecular Formula: (C6H5CO)2O2
Molecular Weight: 242.0676
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures. Do not allow to dry.
In its dry form, Benzoly Peroxide is highly flammable and explosive,
sensitive to friction, shock and heat, and must be handled with
extreme caution.
Conditions to Avoid:
Mechanical shock, ignition sources, excess heat, combustible
materials, reducing agents, temperatures above 100C, organic
matter.
Incompatibilities with Other Materials:
Reducing agents, strong acids, bases, amines, metals, accelerators,
methyl methacrylate, carbon tetrachloride and ethylene, organic
matter, N,N - dimethylaniline and lithium aluminum hydride. Benzoyl
peroxide is self-reactive chemical which can even explode without
warning when the caps of old jars are unscrewed. It is extremely
important to keep it pure, contaminants can lead to hazardous,
unexpected explosions.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, benzene.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 94-36-0: DM8575000
CAS# 7732-18-5: ZC0110000
LD50/LC50:
CAS# 94-36-0: Draize test, rabbit, eye: 500 mg/24H Mild; Oral,
mouse: LD50 = 5700 mg/kg; Oral, rat: LD50 = 7710 mg/kg.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
Carcinogenicity:
Benzoyl peroxide -
ACGIH: A4 - Not Classifiable as a Human Carcinogen
IARC: Group 3 carcinogen
Water -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: ORGANIC PEROXIDE TYPE C, SOLID *
Hazard Class: 5.2
UN Number: 3104
Packing Group: II
IMO
Shipping Name: ORGANIC PEROXIDE TYPE C, SOLID
Hazard Class: 5.2
UN Number: 3104
Packing Group: II
RID/ADR
Shipping Name: ORGANIC PEROXIDE TYPE C, SOLID
Dangerous Goods Code: 5.2(4B)
UN Number: 3104
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI E
Risk Phrases:
R 2 Risk of explosion by shock, friction, fire or
other sources of ignition.
R 36 Irritating to eyes.
R 43 May cause sensitization by skin contact.
Safety Phrases:
S 3 Keep in a cool place.
S 7 Keep container tightly closed.
S 14 Keep away from ... (incompatible materials to
be indicated by the manufacturer).
S 14A Keep away from acids, reducing agents and
polymerisation catalysts.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 94-36-0: 1
CAS# 7732-18-5: No information available.
United Kingdom Occupational Exposure Limits
CAS# 94-36-0: OES-United Kingdom, TWA 5 mg/m3 TWA
Canada
CAS# 94-36-0 is listed on Canada's DSL List.
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 94-36-0 is listed on Canada's Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 94-36-0: OEL-AUSTRALIA:TWA 5 mg/m3
OEL-AUSTRIA:TWA 5 mg/m3
OEL-BELGIUM:TWA 5 mg/m3
OEL-DENMARK:TWA 5 mg/m3
OEL-FINLAND:TWA 5 mg/m3;STEL 10 mg/m3;Skin
OEL-FRANCE:TWA 5 mg/m3
OEL-GERMANY:TWA 5 mg/m3
OEL-HUNGARY:TWA 5 mg/m3;STEL 10 mg/m3;Skin
OEL-THE NETHERLANDS:TWA 5 mg/m3
OEL-THE PHILIPPINES:TWA 5 mg/m3
OEL-SWITZERLAND:TWA 5 mg/m3
OEL-UNITED KINGDOM:TWA 5 mg/m3
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 94-36-0 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 8/03/1998 Revision #2 Date: 10/19/2001
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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