Vaselineisakindofpetroleumjelly-basedproducts.Theproductsincludeplainpetroleumjelly
andmanyvarietiesofskincreams,soaps,lotions,cleansers,anddeodorants.Petrolatum,or
petroleumjelly,derivedfrompetroleum,isoftenusedinpersonalcareproductsasa
moisturizingagent.Inmanylanguages,theword"Vaseline"isusedasgenericforpetroleum
jelly;inPortugalitiscalledasVaselina,andinBrazilandsomeSpanishspeakingcountries,the
productsarecalledasVasenol.In1859,RobertChesebroughwenttotheoilfieldsinTitusville,Pennsylvania,andlearntabouta
residuecalled"rodwax"thathadtobeperiodicallyremovedfromoilrigpumps.Theoilworkers
hadbeenusingthesubstancetohealcutsandburns.Chesebroughtooksamplesoftherod
waxbacktoBrooklyn,extractedtheusablepetroleumjelly,andbeganmanufacturinga
medicinalproductcalledVaseline.
ThenameVaselinewasfirstcoinedbyChesebroughandfiledaU.S.patent(U.S.Patent
127,568)in1872.Thename"vaseline"issaidbythemanufacturertobederivedfrom
GermanWasser"water"+Greek(elaion)"oliveoil".VaselinewasmadebytheChesebrough
ManufacturingCompanyuntilthecompanywaspurchasedbyUnileverin1987.
Whitepetrolatum,theingredientinpetroleumjellyVaseline,isrefinedfrompetroleum.Vaseline
canbeusedasalubricant,itcanalsobeusedasamoistureinsulatorforlocalskinconditions
characterizedbytissuedehydration.Vaselinehasbeenreportedtobehighlyrefined,
triple-purifiedandregardedasnon-carcinogenic
a)StatewhetherthefollowingsentencesareTRUEorFALSE. (5)
a)Vaselineisamoisturizingagent
b)TheRodwaxisusedtohealcutsandburns
c)Vaselineisanon-medicinalproduct
d)Thename'Vaseline'isderivedfromwaterandoliveoil
e)Vaselineiscarcinogenic
b)Answerthefollowingquestionsbasedonthepassage. (3)
a)NamethegenerictermsofpetroleumjellyinPortugal,BrazilandSpain.
b)NamethepersonalcareproductsthatusePetroleumJelly.
c)HowdidChesebroughmanufactureVaseline?
c)Writeasentencedescribingthegivenwordsfromthecontextofthepassage.(2)
a)Dehydration
b)Residue
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