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Samenvatting overzicht wetten & wassen

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per vet/was worden structuur, gebruik, eigenschappen & info uit de farmacopee gegeven

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OVERZICHT VETTEN & WASSEN


VET/WAS GEBRUIK + EIG EXTRA
Paraffine & Vaseline  P= mengsel van CH-s  VAST: uit licht neutraal
 bekomen uit distillatie v petroleum =aardolie in gesteenten distillaat +
 bestaat uit (cyclo)alkanen + aromatische CH’s (soms halogenen) uitkristalliseren, vnml
 Keten: alkaan -> hoeveelheid bepaald vast/vloeibaar/halfvast alkanen
 Vaseline= halfvaste paraffine  VLOEIBAAR: licht neutraal
 bereid uit distillatieresten v vacuümdistillatie vrij v asfalt, bestaat distillaat +
 bestaat uit rechtlijnige/vertakte alkanen deel in opl-deels in zwavelzuurbehandeling,
naftenen vnml cycloalkanen
 gn kristallen door hoge viscositeit
 witte vaseline: zalfbasis, gebleekt
 neemt weing water op dus gemengd met emulgerende stoffen (vb
lanoline)
 Gebruik: zalfbasis, oplosmiddel, laxeermiddel (vloeibare vorm)
Bijenwas  Geproduceerd door bij om honingraten te maken
 Wit -> geel door contact met stuifmeel enz.
 Bestaat uit ester v vetzuren (C12-14) met vetalcoholen met lange
ketens (C24-32)
 Gebruik: lippenzalf/stift, kaarsen, tabletomhulsel
Cetylpalmitaat  Uit potvis (spermaceti-orgaan in schedel)
 In zalven, crémes, olielampen, kaarsen
 Bestaat uit mengsel v esters (C15-18) alcoholen met carbonzuren
Wolvet (=lanoline)  Was geproduceerd door zweetklieren v schapen EUCERINE= gezuiverd lanoline
 Mengsel v wol/vetalcoholen en vetzuren met hoog cholesterolgehalte
 Kan water opnemen > W/O-emulgator
 I zalven, crémes, cosmetica, zepen, vette wondgazen

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Uploaded on
September 4, 2022
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Written in
2020/2021
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