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Print Article6. Specific Gravity: This tells whether the chemical will sink or float in water. If over 1.00, it will sink. If less than 1.00 it will float.
7. Melting Point: The temperature at which a solid changes to a liquid.
8. Evaporation Rate: The temperature at which the chemical evaporates. If the chemical has a high evaporation rate you do not want to store it in a hot place.
Section IV Fire and Explosion Hazard Data.
1. Flash Point: The temperature at which a chemical or substance will ignite if exposed to a spark or flame. If the flash point is 90-120 degrees F, The fumes can be ignited by a cigarette, electrical equipment etc. If this is the case, store these chemicals in a cool area.
2. Flammable Limits: This is the concentration of the chemical in the form of a gas or vapor that is needed for it to ignite if exposed to a spark or flame.
3. Extinguishing Media: What do we use to put out a fire caused by the chemical. Sometimes the extinguishing method will be detailed in classes as follows:
Class A -- paper, wood, straw and cloth: Can be fought with water.
Class B -- flammable and combustible liquids: Can be fought with carbon dioxide, foam or dry chemicals.
Class C -- fires caused by electrical equipment: Can be fought with carbon dioxide or dry chemicals.
