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PRT110 - CH3 - Terms

Key Terms from CH 3 "Recognizing Chemical Hazards"

TermDefinition
Acid a substance with a pH less than 7.0
Base a substance with a pH greater than 7.0; also referred to as alkaline
Carcinogen a cancer-causing substance
Combustible liquid any liquid that has a flashpoint at or above 100 degrees F but below 200 degrees F
Explosive a substance that causes a sudden, almost instantaneous release of pressure, gas and heat when sujected to sudden shock, pressure or high temperatures
Flammable gas any gas that, at ambient temperature and atmospheric pressure forms a flammable mixture with air at a concentration of 10% by volume or less
Flammable liquid any liquid that has a flashpoint below 100 degrees F
Flammable solide any solid, other than a blasting agent or explosive, that is liable to cause fire through friction, absorption of moisture, spontaneous chemical change or retained heat from manufacturing or processing
Flashpoint the minimum temperature at which a liquid gives of a vapor in sufficient concentration to ignite
HAZCOM OSHA 29 C.F.R. 1910.1200 Hazard Communication/Employee Right-to-Know, a standard to ensure that employees are aware of the chemicals they are exposed to in the workplace and the measures to take to protect themselves from such hazards
Highly toxic a substance that requires only a small amount of exposure to be lethal
Inorganic compound a chemical compound that that does not contain carbon chains
Mutagen a chemical suspected to have properties that change or alter a living cell's genetic structure; mutagens can lead to cancer or birth defects if the egg or sperm is affected
Nuerotoxin a poison that affects the nervous system
Organic Compound a chemical compound that contains carbon chains
Organic peroxide an organic comound that contains the bivalent -O-O- structrue and which can be considered to be a structural derivative of hydgrogen peroxide, where one or both of the hydrogen atoms has been replaced by an organic radical
Oxidizer a chemical that can initiate or promote combustion in other materials
pH a measure of the amount of hydrogen ions in a solution that can react and indicate if a substance is an acid or base
Pyrophoric a chemical that will ignite spontaneously in air at a temperature of 130 degrees F or below
Sensitizer an agent that can cause an allergic reation
Teratogen a substance believed to have an adverse effect on human fetus development
Toxic materials a substance determined to have an adverse health impact
Water-reactive any substance that reacts with water to release a gas that is either flammable or that presents a health hazard.
Created by: 1873918659595405