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Ho fetola tharollo ea ho nchafatsoa ha oli
O ne a sebelisa oli, hape e bitsoang oli, likoloi, likepe, likepe, lijana tsa ho hlahisa palo e kholo ea chemi, oxide mme ka hona a lahleheloa ke katleho. Mabaka a mantlha: Taba ea pele, oli e sebelisitsoeng e tsoakoa le mongobo, phofo e fapaneng le ea methapo e hlahisoang ke 'mala o motšo le pono e kholo. Taba ea bobeli, oli e mpefatsa ka nako e ntse e tsamaea, e theha li-acid tsa li-acid tsa acid, li-colloid le asphalt-joalo ka lintho tse joalo.
