CHEM261 Study Guide - Final Guide: Bunsen Burner, Dry Ice, Solvent
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CHEM261 Full Course Notes
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Never pour water into concentrated acid. it is exothermic. Cylinder = compressed gas (class a) explosion because gas is pressurized. explosion if heated or dropped. Flame (flammable or combustible) class b - catches re at low temperature, may ignite spontaneously, or release ammable gas on contact with water ! Oxidizing material (o with ames on top) class c - reacts violently and causes explosion when in contact with combustible material- burns skin and eyes upon contact! Poisonous material immediate toxic effects (skull and crossbones) class d1 (most dangerous) - fatal poisoning substance - immediately fatal upon inhalation, swallowing, or through entering body through skin contact. T (toxic) class d2 - poisonous not immediately hazardous to health, long exposures causes permanent damage or death, may be an irritant! Biohazardous infection material class d3 - serious disease = illness or death, toxin that is harmful to humans!
