SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 02/FEB/2005
Date Updated: 12/MAR/2004
Version 1.3
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name BENZOYL PEROXIDE STABILIZED
Product Number B5907
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
BENZOYL PEROXIDE <= 62%, and >= None None None
28% INERT SOLID AND >= 10% WATER
Ingredient Name Percent CAS # EC no Annex I
Index Number
DICYCLOHEXYL PHTHALATE 50 84-61-7 201-545-9 None
Symbols: Xi
R-Phrases: 36/37/38
Irritating to eyes, respiratory system and skin.
BENZOYL PEROXIDE 50 94-36-0 202-327-6 617-008-00-0
Symbols: E Xi
R-Phrases: 2 36 43
Risk of explosion by shock, friction, fire, or other sources of
ignition. Irritating to eyes. May cause sensitization by skin
contact.
Formula C14H10O4
Molecular Weight 242.2 AMU
Synonyms benzoyl peroxide stabilized with ~50% cyclohexyl
phthalate
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Contact with combustible material may cause fire. Irritating to
eyes, respiratory system and skin. May cause sensitization by skin
contact.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If breathing becomes difficult,
call a physician.
AFTER SKIN CONTACT
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
AFTER EYE CONTACT
In case of contact with eyes, flush with copious amounts of
water for at least 15 minutes. Assure adequate flushing by
separating the eyelids with fingers. Call a physician.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
Contact with other material may cause fire. May accelerate
combustion.
Explosion Hazards: May explode when heated. Dry material is an
explosive.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Absorb on sand or vermiculite and place in closed containers for
disposal. Ventilate area and wash spill site after material
pickup is complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe vapor. Do not get
in eyes, on skin, on clothing. Avoid prolonged or repeated
exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from
combustible materials, heat, sparks, and open flame.
Store at 2-8掳C
8 - Exposure Controls / Personal Protection
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ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Remove and wash contaminated
clothing promptly.
EXPOSURE LIMITS
Country Source Type Value
ACGIH TLV 30 mg/m3
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Physical State: Solid
Property Value At Temperature or Pressure
pH N/A
BP/BP Range N/A
MP/MP Range 54 掳C
Flash Point N/A
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density N/A
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate 0.65
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility Solubility in Water:Insoluble.
10 - Stability and Reactivity
STABILITY
Stable: Unstable.
Conditions of Instability: Self ignition is possible.
Conditions to Avoid: Heat. Contamination.
Materials to Avoid: Reducing agents, Acids, Bases, Amines, Organic
materials, Oxidizing agents, Polymerizing initiators.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: May occur
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11 - Toxicological Information
ACUTE TOXICITY
LD50
Oral
Rat
> 5,000 mg/kg
SENSITIZATION
Skin: May cause allergic skin reaction.
SIGNS AND SYMPTOMS OF EXPOSURE
Depending on the intensity and duration of exposure, effects may
vary from mild irritation to severe destruction of tissue. To
the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.
ROUTE OF EXPOSURE
Skin Contact: Causes skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Readily absorbed through skin.
Eye Contact: Causes eye irritation.
Inhalation: May be harmful if inhaled. Material is irritating to
mucous membranes and upper respiratory tract.
Ingestion: May be harmful if swallowed.
TARGET ORGAN INFORMATION
Lungs. Nerves. Testes.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
UN#: 3106
Class: 5.2
Proper Shipping Name: Organic peroxide type D, solid
IMDG
UN#: 3106
Class: 5.2
PG: II
Proper Shipping Name: Organic peroxide type D, solid
Marine Pollutant: No
Severe Marine Pollutant: No
Technical Name: Required
IATA
UN#: 3106
Class: 5.2
Proper Shipping Name: Organic peroxide type D, solid
Inhalation Packing Group I: No
Technical Name: Required
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15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: O Xi
Oxidizing. Irritant.
R-PHRASES: 8 36/37/38 43
Contact with combustible material may cause fire. Irritating to
eyes, respiratory system and skin. May cause sensitization by
skin contact.
S-PHRASES: 17 26 36/37
Keep away from combustible material. In case of contact with
eyes, rinse immediately with plenty of water and seek medical
advice. Wear suitable protective clothing and gloves.
16 - Other Information
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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