Propynyllithium

Hazard statements (CLP)

H250, H252, H261, H314, H335

Code

Statements

H250

Catches fire spontaneously if exposed to air

SECTION 2: Hazards identification

(29 CFR 1910.1200) Classification

Signal word

Danger

Hazard statements

Catches fire spontaneously if exposed to air In contact with water releases flammable gas Self-heating in large quantities; may catch fire Causes severe skin burns and eye damage May cause respiratory irritation

Prevention

Do not breathe dust/fume/gas/mist/vapors/spray Wash face, hands and any exposed skin thoroughly after handling Wear protective gloves/protective clothing/eye protection/face protection Use only outdoors or in a well-ventilated area Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking Do not allow contact with air Do not allow contact with water Handle and store contents under inert gas. Protect from moisture

Response

Immediately call a POISON CENTER or doctor Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing Skin IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower Take off contaminated clothing and wash before reuse IF ON SKIN: Brush off loose particles from skin. Immerse in cool water or wrap in 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 IF SWALLOWED: Rinse mouth. DO NOT induce vomiting Fire In case of fire: Use CO2, dry chemical, or foam to extinguish

Storage

Store locked up Store in a well-ventilated place. Keep container tightly closed Store under an inert atmosphere 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

None identified

2.1 Classification of the substance or mixture

This chemical is considered hazardous according to [US] OSHA (29 CFR 1910.1200, 2024) Substances/mixtures which, in contact with water, emit Category 2 flammable gases Pyrophoric solids Category 1 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system.