Diethylmethoxyborane, 4M solution 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 Pyrophoric liquids Category 1 Acute oral toxicity Category 4 Acute dermal toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 4 Skin Corrosion/Irritation Category 1 B Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Carcinogenicity Category 2 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system, Central nervous system (CNS). Specific target organ toxicity - (repeated exposure) Category 2 Target Organs - Kidney, Liver, Gastrointestinal tract (GI), spleen, Blood.

Signal word

Danger

Hazard statements

Highly flammable liquid and vapor Catches fire spontaneously if exposed to air Causes severe skin burns and eye damage May cause respiratory irritation May cause an allergic skin reaction May cause drowsiness or dizziness Suspected of causing cancer May cause damage to organs through prolonged or repeated exposure Harmful if swallowed, in contact with skin or if inhaled

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 Use only outdoors or in a well-ventilated area Do not breathe dust/fume/gas/mist/vapors/spray Contaminated work clothing should not be allowed out of the workplace Wear protective gloves 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 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 skin irritation or rash occurs: Get medical advice/attention IF ON 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

Disposal

Dispose of contents/container to an approved waste disposal plant

2.3 Other hazards

May cause long lasting harmful effects to aquatic life May form explosive peroxides WARNING Cancer - https //www.p65warnings.ca.gov/.