n-Pentylmagnesium bromide, 1M in THF

2.1 Classification of the substance or mixture

This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Flammable liquids Category 2 Substances/mixtures which, in contact with water, emit Category 1 flammable gases Pyrophoric liquids Category 1 Acute oral toxicity Category 4 Skin Corrosion/Irritation Category 1 B Serious Eye Damage/Eye Irritation Category 1 Carcinogenicity Category 2 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system, Central nervous system (CNS).

Signal word

Danger

Hazard statements

Highly flammable liquid and vapor In contact with water releases flammable gases which may ignite spontaneously Catches fire spontaneously if exposed to air Harmful if swallowed Causes severe skin burns and eye damage May cause respiratory irritation May cause drowsiness or dizziness Suspected of causing cancer

Prevention

Obtain special instructions before use Do not handle until all safety precautions have been read and understood Use personal protective equipment as required Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Do not breathe dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area Keep away from heat/sparks/open flames/hot surfaces. - No smoking Keep container tightly closed Ground/bond container and receiving equipment Use explosion-proof electrical/ventilating/lighting/equipment Use only non-sparking tools Take precautionary measures against static discharge Do not allow contact with air Keep away from any possible contact with water, because of violent reaction and possible flash fire Handle under inert gas. Protect from moisture Keep cool

Response

Immediately call a POISON CENTER or doctor/physician Inhalation IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing Skin Wash contaminated clothing before reuse IF ON SKIN: Immerse in cool water/wrap with wet bandages Brush off loose particles from skin. Immerse in cool water/wrap with wet bandages Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing Ingestion Rinse mouth Do NOT induce vomiting Fire In case of fire: Use CO2, dry chemical, or foam for extinction

Storage

Store locked up Store in a well-ventilated place. Keep container tightly closed Store contents under inert gas Store in a dry place. Store in a closed container

Disposal

Dispose of contents/container to an approved waste disposal plant

2.3 Other hazards

May form explosive peroxides