Term
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Definition
| - activation energy – energy to start a reaction up |
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Term
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Definition
| form of mist characterized by highly respirable, minute liquid particles |
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Term
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Definition
| - air-reactive – likely to react rapidly with dry or moist air |
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Term
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Definition
| min temp to which fuel in air must be heated to autoignite w/o a source |
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Term
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Definition
| Boiling Point – where the vapor pressure is greater than atmospheric pressure |
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Term
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Definition
| one that burns directly without vaporizing (fuel oil) |
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Term
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Definition
| solid particle that is formed or generated by reducing its size through a mechanical process |
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Term
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Definition
| - explosive – a material mixed to allow for very rapid release of chemical energy |
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Term
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Definition
| solid particle whose length is several times greater than its diameter |
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Term
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Definition
| the point at which those a material vaporizes sufficiently to burn continuously |
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Term
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Definition
| one that is volatile and whose vapors burn readily (gasoline) |
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Term
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Definition
| the min. temp at which a vaporized liquid or solid forms an ignitable mixture with air |
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Term
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Definition
| suspension of particles that form when material from a volatilized solid condenses in cool air |
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Term
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Definition
| - highly flammable – has a flash point less than 100 dF |
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Term
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Definition
| - inhibitors – materials added to products that easily polymerize to control or prevent a reaction |
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Term
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Definition
| - LEL – lower explosive limit, LFL – lower flammable limit – below it mixture is too lean to burn |
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Term
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Definition
| finely divided liquid suspended in the atmosphere, created from either gas or liquid |
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Term
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Definition
| - oxidizing agents – provides necessary oxygen for the reaction |
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Term
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Definition
| - peroxidable compound – undergoes spontaneous reaction with oxygen at room temp |
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Term
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Definition
| - polymerizable – can undergo self-sustaining reactions that release energy |
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Term
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Definition
| - polymerization – a catalyst causes simple molecules to assemble into a long molecule, plus energy |
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Term
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Definition
| - radioactive material – continuously emitting ions or radiation |
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Term
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Definition
| - its relative ability to undergo a chemical reaction with another material |
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Term
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Definition
| - the weight of a material compared to the weight of an equal volume of water |
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Term
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Definition
| - strong oxidizing agent – can easily gain electrons from other agents |
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Term
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Definition
| - strong reducing agent – easily gives up electrons to other substances, thus oxidized |
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Term
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Definition
| - UEL – upper explosive limit, UFL – upper flammable limit – above it mix is too rich to burn |
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Term
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Definition
| gaseous form of a substance that is normally a solid or liquid at room temperature |
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Term
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Definition
| Vapor Density – ratio of the weight of a given volume of vapor compared to air at same temp/pressure |
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Term
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Definition
| Vapor Pressure – exerted by a saturated vapor above its own liquid in a closed container |
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Term
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Definition
| - water reactive – may react rapidly or violently with liquid water and steam |
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