Material Safety Data
Benzoyl Peroxide (Wet)
Section 1 - Chemical Product and Company
MSDS Name: Benzoyl Peroxide (Wet)
Catalog Numbers: B274 1LB, B274-1LB, B2741LB, NC9747998
Synonyms: Dibenzoyl peroxide, benzoic acid peroxide, benzoyl
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
Symbols: XI E
Risk Phrases: 2 36 43
Section 3 - Hazards
Appearance: white. Danger! Strong oxidizer. Contact with
other material may cause a fire. May cause respiratory and digestive tract
irritation. Causes eye and skin irritation. May cause allergic skin reaction.
Target Organs: Eyes.
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
Ingestion: May cause irritation of the
Inhalation: Dust is irritating to the
respiratory tract. May cause respiratory tract irritation.
Chronic: No information found.
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
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.
Physician: Treat symptomatically and supportively.
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. 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.
Media: Use water spray to cool fire-exposed containers. Use water
spray, dry chemical, carbon dioxide, or chemical foam. Do NOT use halogenated
Section 6 -
Accidental Release Measures
Information: Use proper personal protective equipment as indicated in
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
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 4°C/39°F.)
Section 8 - Exposure
Controls, Personal Protection
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
||5 mg/m3 TWA
||5 mg/m3 TWA 1500 mg/m3 IDLH
||5 mg/m3 TWA|
OSHA Vacated PELs: Benzoyl
peroxide: 5 mg/m3 TWA Water: No OSHA Vacated PELs are listed for this chemical.
Personal Protective Equipment
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
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
Section 9 - Physical
and Chemical Properties
Odor: weak odor
Vapor Pressure: Not available.
Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point:104-106 deg C
Temperature: 380 deg C ( 716.00 deg F)
Flash Point: Not
Decomposition Temperature:Not available.
Rating: (estimated) Health: 1; Flammability: 4; Reactivity: 4
Explosion Limits, Lower:Not available.
Solubility: Insoluble in water.
Section 10 -
Stability and Reactivity
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 100°C, organic
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
Hazardous Decomposition Products: Carbon monoxide, carbon
Hazardous Polymerization: Has not been reported.
Section 11 -
CAS# 94-36-0: DM8575000
CAS# 7732-18-5: ZC0110000
Draize test, rabbit, eye: 500 mg/24H
Oral, mouse: LD50 = 5700 mg/kg;
Oral, rat: LD50 = 7710
Oral, rat: LD50 = >90 mL/kg;
ACGIH: A4 - Not
Classifiable as a Human Carcinogen
IARC: Group 3 carcinogen CAS#
7732-18-5: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Epidemiology: No information found.
Reproductive Effects: No information found.
Neurotoxicity: No information found.
Other Studies: See actual entry in RTECS for
Section 12 -
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 -
||ORGANIC PEROXIDE TYPE C SOLID (BENZOYL PEROXIDE,65-70%)
||ORGANIC PEROXIDE TYPE C, SOLID (BENZOYL
Section 15 -
CAS# 94-36-0 is listed on the TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
& Safety Reporting List
None of the chemicals are on the Health &
Safety Reporting List.
Chemical Test Rules
None of the chemicals
in this product are under a Chemical Test Rule.
of the chemicals are listed under TSCA Section 12b.
TSCA Significant New
None of the chemicals in this material have a SNUR under TSCA.
Section 302 (RQ)
None of the chemicals in this
material have an RQ.
Section 302 (TPQ)
None of the chemicals in
this product have a TPQ.
CAS # 94-36-0: flammable,
sudden release of pressure.
This material contains
Benzoyl peroxide (CAS# 94-36-0, 67 75%),which is subject to the reporting
requirements of Section 313 of SARA Title III and 40 CFR Part 373.
This material does not contain any hazardous air pollutants.
This material does not contain any Class 1 Ozone depletors. This material does
not contain any Class 2 Ozone depletors.
Clean Water Act:
the chemicals in this product are listed as Hazardous Substances 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.
CAS# 94-36-0 is considered highly hazardous
CAS# 94-36-0 can be found on the following state
right to know lists: California, New Jersey, Florida, Pennsylvania, Minnesota,
CAS# 7732-18-5 is not present on state lists from CA, PA, MN,
MA, FL, or NJ.
California No Significant Risk Level: None of the chemicals
in this product are listed. European/International
European Labeling in Accordance with EC
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.
S 14 Keep away from ... (incompatible
be indicated by the manufacturer).
S 3 Keep in a cool
S 36/37/39 Wear suitable protective clothing, gloves
S 7 Keep container tightly closed.
S 14A Keep away from
acids, reducing agents and
CAS# 94-36-0: 1
CAS# 7732-18-5: No information
CAS# 94-36-0 is listed on Canada's DSL List.
CAS# 94-36-0 is listed on Canada's DSL List. CAS# 7732-18-5 is listed on
Canada's DSL List. CAS# 7732-18-5 is listed on Canada's DSL List.
product has a WHMIS classification of C, D2B, B4.
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.
OEL-AUSTRALIA:TWA 5 mg/m3 OEL-AUSTRIA:TWA 5 mg/m3 OE
L-BELGIUM:TWA 5 mg/m3
OEL-DENMARK:TWA 5 mg/m3 OEL-FINLAND:TWA 5 mg/m
3;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, KOR
EA check ACGIH TLV OEL IN NEW ZEALAND,
SINGAPORE, VIETNAM check ACGI
Section 16 -
MSDS Creation Date:
Revision #4 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
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possibility of such damages.