Product Identification
【Product Name】m-CPBA 　间氯过氧苯甲酸
【Synonyms】m-Chloroperoxybenzoic acid
【CAS】937-14-4
【Formula】C7H5ClO3
【Molecular Weight】172.57
【EINECS】213-322-3
【RTECS】SD9470000
【RTECS Class】Tumorigen
【Beilstein/Gmelin】608317
【Beilstein Reference】4-09-00-00972

Physical and Chemical Properties
【Appearance】White powder with a slight, pungent odor.
【Solubility in water】Insoluble
【Melting Point】88℃
【Boiling Point】265℃
【pKa/pKb】7.14 (pKa)
【Partition Coefficient】1.68
【Usage】Used widely as an oxidant in organic synthesis.

First Aid Measures
【Ingestion】If conscious, immediately induce vomiting.
【Inhalation】Remove to fresh air. If not breathing, give artificial respiration. If breathing is dificult, give oxygen.
【Skin】Immediately flush eyes with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
【Eyes】Immediately flush with running water for at least 20 minutes.

Handling and Storage
【Storage】Stable under normal temperatures and pressures.
【Handling】All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification
【Ingestion】May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May be harmful if swallowed.
【Inhalation】May cause irritation.
【Skin】May cause irritation.
【Eyes】May cause irritation.
【Hazards】May explode from heat, shock, friction or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard.
【EC Risk Phrase】R 5 8 36/37/38
【EC Safety Phrase】S 17 26 36
【UN (DOT)】2755

Exposure Controls/Personal Protection
【Personal Protection】Wear appropriate protective clothing, gloves and ggles.
【Respirators】Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures
【Fire Fighting】SMALL FIRES: Water spray or fog is preferred; if water not available use dry chemical, carbon dioxide or regular foam. LARGE FIRES: Flood fire area with water from a distance. Use water spray or fog; do not use straight streams. Move containers from fire area if you can do it without risk. Do not move car or vehicle if car has been exposed to heat. Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
【Fire Potential】May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect.

Accidental Release Measures
【Small spills/leaks】ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Keep substance wet using water spray. Stop leak if you can do it without risk. SMALL SPILLS: Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal.

Stability and Reactivity
【Incompatibilities】Nickel, iron, manganese oxide, acids, metals and metal compounds, nitrides,combustible and flammable materials, oxidizing agents, reducing agents.
【Stability】Stable under normal temperatures and pressures.
【Decomposition】Strong oxidizer. Contact with other material may caues fire. Keep from contact with clothing and other combustible materials.
【Combustion Products】Chlorine and chlorine oxides.

Transport Information
【UN Number】2755
【Hazard Class】5.2