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Aerosol spray: Quiz


Question 1: [1] The first aerosol spray can was invented in ________ in November 23, 1927 by Erik Rotheim, a Norwegian chemical engineer.

Question 2: 2K aerosol can increase solid contents and deliver high performance polymer products, such as curable paints, foams, and ________.
Hot melt adhesiveAdhesiveThermoplasticPolyurethane

Question 3: Deliberate ________ of the contents to gain a high from the propellant
KetamineNitrous oxideInhalantRecreational drug use

Question 4: This means that inside the pressurized can, the vapor can exist in equilibrium with its bulk liquid at a pressure that is higher than ________ (and able to expel the payload), but not dangerously high.
Precipitation (meteorology)LightningAtmospheric pressureWind

Question 5: Typical liquids dispensed in this way are insecticides, ________ and paints.
DeodorantAluminiumBacteriaAluminium chlorohydrate

Question 6: The "crimp-on valve", used to control the spray was developed in 1949 by ________ machine shop proprietor Robert H. Abplanalp.
Staten IslandManhattanNew York CityThe Bronx

Question 7: Medicinal aerosols such as asthma inhalers use hydrofluoroalkanes (HFA): either ________ (1,1,1,2,-tetrafluoroethane) or HFA 227 (1,1,1,2,3,3,3-heptafluoropropane) or combinations of the two.
Dichlorodifluoromethane1,1,1,2-TetrafluoroethaneDifluoromethaneTrifluoroacetic acid

Question 8: Usually the gas is the vapor of a liquid with ________ slightly lower than room temperature.
Critical point (thermodynamics)Melting pointBoiling pointPhase transition

Question 9: ________ and carbon dioxide are also used as propellants to deliver foodstuffs (for example, whipped cream and cooking spray).
MethorphanArylcyclohexylamineNitrous oxidePhencyclidine

Question 10: The can is most commonly lacquered ________ (steel with a layer of tin) and may be made of two or three pieces of metal crimped together.
ZincWrought ironTinningIronworks

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