ACETYLENE

SECTION 2: Hazards identification

Exposure Guidelines ACETYLENE, DISSOVED ACETYLENE ACGIH (simple asphyxiant) 2500 ppm (2662 mg/m3) NIOSH recommended ceiling Engineering Controls Handle only in fully enclosed systems. Danger Eye Protection Skin Protection Respiratory Protection Eye protection not required, but Protective clothing is not Respiratory protection may be needed for frequent or heavy recommended. required. exposure.

2.1 Classification of the substance or mixture

Flammable (Category 1) Gases Under Pressure General Hygiene considerations • Avoid breathing vapor or mist

Hazard statements

Contains gas under pressure; may explode if heated Extremely flammable gas • Avoid contact with eyes and skin • Wash thoroughly after handling and before eating or drinking

Precautionary statements

Section 9: Physical and Chemical Properties

Prevention

Keep away from heat/sparks/open flames/hot surfaces. - No smoking Physical State Appearance Color Change in Physical Form Odor Taste Appearance

Response

Eliminate all ignition sources if safe to do so. Leaking gas fire Do not extinguish, unless leak can be stopped safely Gas Colorless Colorless N/A Liquefied gas Sweet odor N/A Flash Point Flammability Partition Coefficient Autoignition Upper Explosive Limits Lower

Storage

Protect from sunlight. Store in well-ventilated place Temperature Explosive Limits Flammable gas. Can be ignited at all 2691.53 (log = 3.44) 581 F (305 C) 81%; 100% if there is a substantial 0.025 normal temperatures. A flash point of 0 F (estimated from water energy ignition source, and under (-18 C) (CC) has been reported. solubility) certain conditions of pressure, container