PowerPoint Presentation

Md. Habibur RahmanID:- 20121107042Section: 2012-13 Applied Chemistry and Chemical EngineeringBSMRSTU

WELCOME

Surface active substance, Cleaning action of Soap and Manufacture of soap

Surface Active SubstanceSurface active substance is a substance which lower the surface tension of water known as Surface active substance.

What is surface active substance?

Classification of Surface Active agentCationicAnionicZwitterionicNon-ionic

Classification of Surface Active agentCationicA positive charge headcationic agent --N(CH3)3+.AnionicAnion functional group --OSO3ZwitterionicIt has both anionic and cationic agent --N+(CH3)2CH2COONon-ionicThere is no charge geoup --(OCH2CH2)nOH

SoapWhat is soap?

SoapSodium or Potassium salt of higher fatty acid. Example stearic acid, oleic acid, plamitic acid.

Classification of Soap Hard soap Soft soapInsoluble soap

Na- saltModerately soluble in water Example- Aleppo soap, Castile soap and Marseille soap

Hard soap

Soft soap

Potassium saltFirst dissolve in waterShampoo and Liquid hand wash

Insoluble soap

Ca/Mg-saltDo not dissolve in waterUse as lubricants and dries in paint industry

Cleaning action of soap

Cleaning action of soapHydrophobic tail dissolve in Grease or oil or dirt substance. Hydrophilic head dissolve in water.

Manufacture of soap

Raw material for manufacturing soap

RosinGlycerideCaustic sodaSodium chloride or common saltBinding material Fillers

Clo-ring materialPerfumeSuper fatting agentDisinfectantsGermicide

Manufacture of soap

Manufacture of soapHot processCold processBatch processContinuous process

Fat or oilBlend TankHot waterHydrolyzerFlash TankHeat exchanger

High vaccum stillBottom for recoveryCrude GlycerideCondenserDistillate for receiverMixer neutralizerSoap storageSoap Bar finishingSoap flask powder etcHot pressure pumpHeat exchangerFlask TankFreezercutterstamperH2OCatalyst ZnOSteamsteamsteamFig: Manufacture of soap by continuous processAirNaOH

Do you have any question????????????

THANK YOU