Chapter 7 Flashcards
A pure substance that cannot be broken down into simpler substances chemically.
Element.
Chemical combination of two or more elements, that is electrically neutral
Compound
mixture in which all of the ingredients are completely dissolved. made up of a solvent and a solute
Solution
a pourable mixture of a solid and a liquid
slurry
a cryogenic liquid is what ?
gasses that have been transformed into extremely cold liquids stored at temps. below 90C.
What are hazards associated with cryogenic liquids?
1) extreme cold
2) tremendous liquid to gas expansion ratios
3) hazards of the respective material
ionic bonding
the electrostatic attraction of oppositely charged particles.
organic materials
materials that contain Carbon atoms
inorganic materials
compounds derived from other that vegetable or animal material that also may contain carbon ( sulfur dioxide)
what are hydrocarbons
compounds primarily made up of hydrogen and carbon
saturated hydrocarbons
a hydrocarbon possessing only single covalent bonds, and all of the carbon atoms are saturated with hydrogen. also called alkanes
unsaturated hydrocarbons
a hydrocarbon with at least one multiple bond between two carbon atoms somewhere in the molecule. also called alkynes
aromatic hydrocarbons
a hydrocarbon which contains a benzene ring
halogenated hydrocarbons
a hydrocarbon with a halogen atom substituted for a hydrogen atom. often more toxic than organic chemicals
what provide information on the behaviour of a material ?
physical properties.
what are examples of physical properties
- normal physical state
- temperature of the product
- vapor pressure
- specific gravity
- vapor density
- boiling point
- melting point
- volatility
what is Vapor Pressure
the pressure exerted by the vapor within the container against the sides of the container. it is dependant on temperature.
what is the Techinal information center for Canada ?
CANUTEC - (613) 966 6666 or *666
WHat is the TIC for the USA
CHEMTREC
what is a Technical information specialist ?
personnel who either work with the hazmat or the processing of it or who have some other form of specialized knowledge( container design, toxicology )
What are detection and monitoring equipment used for ?
- determine if a HAZMAT is present
- classify an unknown hazard
- determine appropriate level of PPE
- determine size and location of hazard control zones
- develop protective action recommendations
- asses potential health hazards associated with hazards
- determine if a scene is safe for public to reenter.
when collecting samples for product identification during an incident, can you use same samples for evidence?
No. collect different samples for evidence.
what can effect the behaviour of hydrocarbons or other chemicals released into soil ?
- physical properties of the material
- type of soil
- underground water conditions
what five questions need to be addresed to assist with visualizing HAZMAT behaviour ?
- where will the material go if its released
- how will it get there
- why is it likely to go there
- what harm will result
- when will it happen
tactical objectives are what ?
specific and measurable processes implemented to achieve a strategic goal.
Review of Monitoring equipment
PG 216 in text
