Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Level 10

Questions and Answers List

level questions: Level 10

QuestionAnswer
➢ Composed of solid, liquid or gas particles in a continuous phase which can be a solid, liquid or gas. ➢ The particles of one substance is usually distributed or dispersed in another substance without dissolving or they do not combine to form a solution ➢ Particle size – 1nm – 0.5um or 500 nmCOLLOIDAL DISPERSION/SOL
➢ Has colloidal system consisting of a very finely subdivided liquid or solid dispersed and surrounded by gas ➢ The product depends upon the power of liquefied or compress gas to dispense their active ingredient into a finely dispersed mist, a foam or a semisolidAerosol
Types of Aerosol:• Space sprays – it has an active ingredient with a particle size of less than 50 um. Ex. Lysol • Surface sprays – 50-200um • Foams – much bigger in size, more than 200um. Ex. shaving cream
– it has an active ingredient with a particle size of less than 50 um. Ex. LysolSpace sprays
50-200umSurface sprays
much bigger in size, more than 200um. Ex. shaving creamFoams
Components of AEROSOLS1. Product concentrate – active ingredient 2. Propellant – serves as a gas
AEROSOL GASES:1 Chlorofluorocarbon(CFC) 2 Hydrochlorofluorocarbons (HCFC) and Hydrofluorocarbons (HFC) 3 Hydrocarbons 4 Compressed Gases
Chlorofluorocarbon(CFC) examples1 Trichloromonofluoromethane, 2 Dichlorodifluoromethane, 3 Dichlorotetrafluoroethane
Hydrochlorofluorocarbons (HCFC) and Hydrofluorocarbons (HFC) examples1 Chlorodifluoromethane, 2 Trifluoromonofluoroethane, 3 Chlorodifluoroethane, 4 Difluoroethane, 5 Heptafluoropropane
Hydrocarbons examplesPropane, Isobutane, Butane
Compressed Gases examplesnitrogen, nitrous oxide, and carbon dioxide