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Material Safety Data Sheet
Benzoyl Peroxide

Supplier Information:
Exporter/Manufacturer Name:Qinhuangdao Sinochem Imp.& Exp.Co., Ltd.
Exporter/Manufacturer Address:11/F.,Sinochem Office,No.119 YanShan St.,
Exporter/Manufacturer City:Qinhuangdao
Exporter/Manufacturer Province:Hebei
Exporter/Manufacturer Post Code:066001
Exporter/Manufacturer Country:China
24 Hour Emergency Telephone:0086-335-3853877

Product Identification
Chemical Name:Dibenzoyl Peroxide
Synonyms: Benzoyl Peroxide,Benzoyl Superoxide
Molecular formula:C14H10O4
Molecular mass: 242.2
CAS No: 94-36-0
EINECS No: 202-327-6

Hazards Identification
Emergency Overview
WARNING! Causes irritation to skin, eyes and respiratory tract. May be harmful if swallowed.
Health Rating 1 - Slight
Flammability Rating 1 - Slight
Reactivity Rating 1 - Slight
Contact Rating 1 - Slight
Potential Health Effects
Inhalation: Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath.
Ingestion: Causes irritation to the gastrointestinal tract. Symptoms may include nausea, vomiting and diarrhea. It presents little toxicity unless large amount are ingested, in which case, vomiting and diarrhea likely.
Eye Contact: Causes irritation, redness and pain.
Skin Contact: Causes irritation to skin. Symptoms include redness, itching and pain.
Environmental Effects High concentrations may affect organisms.

First Aid Measures
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact:
Immediately flush skin with plenty of soap and water. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.

Exposure Controls/Personal Protection
Airborne Exposure Limits: None established.
Ventilation System: In general, dilution ventilation is a satisfactory health hazard control for this substance. However, if conditions of use create discomfort to the worker, a local exhaust system should be considered.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres. Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles. Maintain eye wash fountain and quick-drench facilities in work area.

Toxicology Information
Possible tumor promoter. May act as a mutagen. Toxic by inhalation. May be harmful if swallowed and in contact with skin. Eye, skin and respiratory irritant. Typical TLV 5 mg/m3.
Toxicity data
ORL-RAT LD50 7710 mg kg-1
ORL-MUS LD50 5700 mg kg-1
SKN-MAM LD50 > 1000 mg kg-1
IPR-MUS LD50 250 mg kg-1
Risk phrases
R2 R7 R36 R43.
Health Effects:
Swallowed: Harmful
Eye: Causes irritation
Skin: Causes irritation
Inhaled: Harmful

Ecological Information
Environmental Fate: No information found.
Environmental Toxicity: No information found.

Fire-Fighting Measures
Dry Chemical,sandy Soil,Chemical foam or carbon dioxide.
Special Fire-Fighting Procedures
Wear self contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Unusual Hazards: May explode when heated. Container explosion may occur under fire conditions. May be shock sensitive. Strong oxidizer. Contact with other material may cause fire.

Accidental Release measures:
Sweep up with spade,place into a dry,clean lidded container for disposal.

Handling & Storage:
Store in a cool,well-ventilated area, Keep away from ignition sources,heat and flame.Store in a tightly closed container.Incompatibilities reducing agent,combustible material,sulfide,accelerator,strong acid,strong base.

Appearance:White Powder or Granular
Melting point: ca. 105 C (decomposes)
Density (g cm-3): 1.33
Explosion limits:
Autoignition temperature: 80 Deg. C.

Stability & reactivity
Danger! Highly reactive material.
Becomes unstable and spontaneously explosive at elevated temperatures.
Hazardous Decomposition Products:
Decomposes with formation of dense white smoke of benzoic acid, phenyl benzoate, terphenyls, biphenyls, benzene and carbon dioxide.
Hazardous Polymerization:
Will not occur.
A powerful oxidizer, Dibenzoyl peroxide is incompatible with many materials including organic and inorganic acids, alcohols, amines, metallic naphthenates, polymerization accelerators and easily oxidized materials. Heat, friction, organic matter, methyl methacrylate, N, N- dimethylaniline, lithium aluminum hydride, and carbon tetrachloride with ethylene have all caused fire or explosions when placed in contact with Dibenzoyl peroxide.
Conditions to Avoid:
Heat, flame, ignition sources, shock, friction, incompatibles.

Disposal Considerations
Product Disposal:Depending on the type and extent of contamination, if any, special disposal methods may be required. Consult State environmental regulatory agencies for acceptable disposal procedures and locations.

Transport information
Chemical Name:Dibenzoyl Peroxide
UN No:3104(Solid)
HAZARD CLASS: 5.2,Page NO:5224
Packing group: II

Regulatory Information
Australian Hazchem Code: No information found.
Poison Schedule: No information found.

Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning: As part of good industrial and personal hygiene and safety procedure, avoid all unnecessary exposure to the chemical substance and ensure prompt removal from skin, eyes and clothing.
Label Precautions: None.
Label First Aid: Not applicable..
Product Use:N/A

Note:The data given here is based on current knowledge and experience. The purpose of this safety data is to describe the products in terms of their safety requirements. The data does not signify any warranty with regard to the products' properties.

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Qinhuangdao Sinochem Imp.& Exp.Co.,Ltd.
11/F.,Sinochem Office,
No.119 YanShan St.,Qinhuangdao,
Web: http://www.tradezone.com/tradesites/wyang.html
Telephone: 0086-335-3853877 Attn:Mr.Watson Yang


Last modified: Jan 25, 2010 at 00:59:48 PST