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MSDS for BENZOYL PEROXIDE Page 1
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1 - PRODUCT IDENTIFICATION
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PRODUCT NAME: BENZOYL PEROXIDE
FORMULA: (C6H5CO)2O2
FORMULA WT: 242.23
CAS NO.: 00094-36-0
NIOSH/RTECS NO.: DM8575000
COMMON SYNONYMS: BENZOIC ACID, PEROXIDE; DIBENZOYL PEROXIDE; BENZOYL
SUPEROXIDE
PRODUCT CODES: B983
EFFECTIVE: 08/27/86
REVISION #02
PRECAUTIONARY LABELLING
BAKER SAF-T-DATA(TM) SYSTEM
HEALTH - 2 MODERATE
FLAMMABILITY - 4 EXTREME (FLAMMABLE)
REACTIVITY - 3 SEVERE (EXPLOSIVE)
CONTACT - 3 SEVERE (LIFE)
HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD).
LABORATORY PROTECTIVE EQUIPMENT
STOP SIGN - SEE SECTION VIII FOR PRECAUTIONS
PRECAUTIONARY LABEL STATEMENTS
DANGER
CAUSES IRRITATION
EXCEPTIONAL CONTACT HAZARD - READ MATERIAL SAFETY DATA SHEET
STRONG OXIDIZER. FLAMMABLE. HEAT, SHOCK, OR CONTACT WITH OTHER MATERIAL MAY
CAUSE FIRE OR EXPLOSIVE DECOMPOSITION.
KEEP FROM CONTACT WITH CLOTHING AND OTHER COMBUSTIBLE MATERIALS. STORE IN
ORIGINAL TIGHTLY CLOSED CONTAINER IN A COOL AREA AND PROTECT FROM DIRECT
SUNLIGHT. DO NOT ADD TO HOT MATERIALS. DO NOT GRIND OR SUBJECT TO
FRICTIONAL HEAT OR SHOCK-EXPLOSIVE DECOMPOSITION MAY RESULT. PREVENT
CONTAMINATION WITH READILY OXIDIZABLE MATERIALS AND POLYMERIZATION
ACCELERATORS. DO NOT GET IN EYES, ON SKIN.
AVOID BREATHING DUST. WASH THOROUGHLY AFTER HANDLING. USE WITH ADEQUATE
VENTILATION. REMOVE AND WASH CONTAMINATED CLOTHING PROMPTLY. IN CASE OF
FIRE, SOAK WITH WATER. IN CASE OF SPILL, CAREFULLY SWEEP UP AND REMOVE.
FLUSH AREA WITH WATER.
SAF-T-DATA(TM) STORAGE COLOR CODE: RED STRIPE (STORE SEPARATELY)
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2 - HAZARDOUS COMPONENTS
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COMPONENT % CAS NO.
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MSDS for BENZOYL PEROXIDE Page 2
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BENZOYL PEROXIDE 90-100 94-36-0
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3 - PHYSICAL DATA
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BOILING POINT: N/A VAPOR PRESSURE(MM HG): <1
MELTING POINT: 105 C ( 221 F) VAPOR DENSITY(AIR=1): N/A
SPECIFIC GRAVITY: 1.33 EVAPORATION RATE: N/A
(H2O=1) (BUTYL ACETATE=1)
SOLUBILITY(H2O): NEGLIGIBLE (LESS THAN 0.1 %) % VOLATILES BY VOLUME: 0
APPEARANCE & ODOR: WHITE GRANULAR SOLID WITH SLIGHT BENZALDEHYDE ODOR.
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4 - FIRE AND EXPLOSION HAZARD DATA
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FLASH POINT (CLOSED CUP: 41 C ( 105 F) NFPA 704M RATING: 1-4-4
FLAMMABLE LIMITS: UPPER - N/A % LOWER - N/A %
FIRE EXTINGUISHING MEDIA
USE WATER SPRAY.
SPECIAL FIRE-FIGHTING PROCEDURES
FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED
BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE MODE.
MOVE CONTAINERS FROM FIRE AREA IF IT CAN BE DONE WITHOUT RISK. USE WATER
TO KEEP FIRE-EXPOSED CONTAINERS COOL.
FLUSH AREA WITH WATER UNTIL COOL SO REIGNITION WILL NOT OCCUR.
UNUSUAL FIRE & EXPLOSION HAZARDS
DUST MAY FORM EXPLOSIVE MIXTURE WITH AIR.
CAN REACT VIOLENTLY WITH SHOCK, FRICTION OR HEAT.
TOXIC GASES PRODUCED
CARBON MONOXIDE, CARBON DIOXIDE
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5 - HEALTH HAZARD DATA
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THRESHOLD LIMIT VALUE (TLV/TWA): 5 MG/M3 ( PPM)
PERMISSIBLE EXPOSURE LIMIT (PEL): 5 MG/M3 ( PPM)
TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 7710
CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO
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EFFECTS OF OVEREXPOSURE
DUST MAY BE IRRITATING TO EYES, NOSE, THROAT, OR LUNGS.
DUST MAY IRRITATE SKIN.
TARGET ORGANS
SKIN, RESPIRATORY SYSTEM, EYES
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE
NONE IDENTIFIED
ROUTES OF ENTRY
INHALATION, INGESTION, EYE CONTACT, SKIN CONTACT
EMERGENCY AND FIRST AID PROCEDURES
IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL
RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.
IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH PLENTY OF WATER FOR AT
LEAST 15 MINUTES. FLUSH SKIN WITH WATER.
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6 - REACTIVITY DATA
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STABILITY: UNSTABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR
CONDITIONS TO AVOID: HEAT, FLAME, OTHER SOURCES OF IGNITION, FRICTION,
SHOCK
INCOMPATIBLES: POLYMERIZATION CATALYSTS & ACCELERATORS, STRONG ACIDS,
STRONG OXIDIZING AGENTS, STRONG REDUCING AGENTS,
MOST COMMON METALS, METAL OXIDES, AMINES,
COMBUSTIBLE MATERIALS
DECOMPOSITION PRODUCTS: CARBON MONOXIDE, CARBON DIOXIDE
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7 - SPILL AND DISPOSAL PROCEDURES
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STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE
WEAR SELF-CONTAINED BREATHING APPARATUS AND FULL PROTECTIVE CLOTHING.
SHUT OFF IGNITION SOURCES; NO FLARES, SMOKING, OR FLAMES IN AREA. KEEP
COMBUSTIBLES (WOOD, PAPER, OIL, ETC.) AWAY FROM SPILLED MATERIAL. SOAK
WITH WATER OR COVER WITH WET VERMICULITE, SAND, OR OTHER INERT MATERIAL.
USING CLEAN, NON-SPARKING TOOLS, PLACE IN CLEAN CONTAINER AND COVER;
REMOVE FROM AREA. FLUSH SPILL AREA WITH WATER.
DISPOSAL PROCEDURE
DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL
ENVIRONMENTAL REGULATIONS.
EPA HAZARDOUS WASTE NUMBER: D001,D002,D003(IGNITABLE,CORROSIVE,REACTIVE
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8 - PROTECTIVE EQUIPMENT
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VENTILATION: USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET
TLV REQUIREMENTS.
RESPIRATORY PROTECTION: RESPIRATORY PROTECTION REQUIRED IF AIRBORNE
CONCENTRATION EXCEEDS TLV. AT CONCENTRATIONS UP
TO 5 PPM, A DUST/MIST RESPIRATOR IS
RECOMMENDED. ABOVE THIS LEVEL, A SELF-CONTAINED
BREATHING APPARATUS IS ADVISED.
EYE/SKIN PROTECTION: SAFETY GOGGLES, UNIFORM, APRON, RUBBER GLOVES ARE
RECOMMENDED.
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9 - STORAGE AND HANDLING PRECAUTIONS
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SAF-T-DATA(TM) STORAGE COLOR CODE: RED STRIPE (STORE SEPARATELY)
SPECIAL PRECAUTIONS
KEEP CONTAINER TIGHTLY CLOSED. STORE IN COOL, DRY, WELL-VENTILATED AREA
AWAY FROM HEAT, SPARKS, OR FLAME.
ISOLATE FROM INCOMPATIBLE MATERIALS.
KEEP PRODUCT OUT OF LIGHT.
PRODUCT MUST BE REFRIGERATED AT 2 - 8 C (36 - 46 F).
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10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION
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DOMESTIC (D.O.T.)
PROPER SHIPPING NAME BENZOYL PEROXIDE
HAZARD CLASS ORGANIC PEROXIDE
UN/NA NA2085
LABELS ORGANIC PEROXIDE
INTERNATIONAL (I.M.O.)
PROPER SHIPPING NAME BENZOYL PEROXIDE
HAZARD CLASS 5.2
UN/NA UN2085
LABELS ORGANIC PEROXIDE
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