1. Flammable chemicals: Flammable chemicals are substances that can easily catch fire and ignite at relatively low temperatures. They pose a risk of fire and explosion if not handled properly, and can cause serious injuries or damage to property.
2. Corrosive chemicals: Corrosive chemicals are substances that can cause severe damage to living tissue upon contact, such as burns or irritation. They can also corrode or damage materials such as metal, leading to structural failures or leaks.
3. Toxic chemicals: Toxic chemicals are substances that can cause harm or death when ingested, inhaled, or absorbed through the skin. They can have immediate or long-term health effects, ranging from nausea and dizziness to organ damage or cancer.
4. Reactive chemicals: Reactive chemicals are substances that can undergo chemical reactions with other materials or substances, leading to the release of heat, gas, or other hazardous byproducts. These reactions can be violent and unpredictable, posing a risk of fire, explosion, or toxic gas release.
5. Explosive chemicals: Explosive chemicals are substances that can undergo rapid and violent decomposition, releasing large amounts of energy in the form of heat, pressure, and gas. They can cause devastating explosions if not handled and stored properly, leading to injuries, fatalities, and extensive damage to property.