Acetic anhydride

SECTION 2: Hazards identification

(29 CFR 1910.1200) Classification

Signal word

Danger Hazard Statements Flammable liquid and vapor Harmful if swallowed Fatal if inhaled Causes severe skin burns and eye damage

Prevention

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 Wear respiratory protection Wear protective gloves/protective clothing/eye protection/face protection Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking Keep container tightly closed Ground and bond container and receiving equipment Use explosion-proof electrical/ventilating/lighting equipment Keep cool Take action to prevent static discharges Use non-sparking tools

Response

Immediately call a POISON CENTER or doctor Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing Immediately call a POISON CENTER or doctor 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 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 to extinguish

Storage

Store in a well-ventilated place. Keep container tightly closed Store locked up

Disposal

Dispose of contents/container to an approved waste disposal plant

2.3 Other hazards

Lachrymator (substance which increases the flow of tears) Corrosive to the respiratory tract

2.1 Classification of the substance or mixture

This chemical is considered hazardous according to [US] OSHA (29 CFR 1910.1200, 2024) Flammable liquids Category 3 Acute oral toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 2 Skin Corrosion/Irritation Category 1 Serious Eye Damage/Eye Irritation