Karolo e ka sehloohong ea talc ke hydrotalcite hydrous magnesium silicate e nang le mokhoa oa molek'hule oa mg3 [si4o10] (OH) 2. Talc ke ea tsamaiso ea monoclinic.Kristale ke pseudohexagonal kapa rhombic, ka linako tse ling.Hangata ke lihlopha tse kholo, tse makhasi, radial le fibrous aggregates.Ha e na 'mala ebile e pepenene kapa e tšoeu, empa e botala bo bobebe, bo mosehla bo bobebe, bo sootho bo bobebe kapa bo bofubelu bo bobebe ka lebaka la litšila tse nyane;bokaholimo ba ho petsoha ke perela e phatsimang.Thata 1, matla a khoheli a khethehileng 2.7-2.8.

Talc phofo e na le lisebelisoa tse ntle tsa 'mele le lik'hemik'hale tse kang lubricity, fire resistance, acid resistance, insulation, high melting point, lik'hemik'hale tse sa sebetseng, matla a koahelang, bonolo, khanya e ntle, adsorption e matla, joalo-joalo hobane sebopeho sa kristale sa talc se koahetsoe, e na le tšekamelo ea ho arohana habonolo ka sekala le lubricity e khethehileng.Haeba litaba tsa Fe2O3 li phahame haholo, ho kenngoa ha eona ho tla fokotseha.

Tšebeliso ea talc:

(1) Kereiti ea litlolo (Hz): e sebelisetsoa mefuta eohle ea phofo e kolobisang, phofo ea botle, phofo ea talcum, joalo-joalo.

(2) Sehlopha sa lijo tsa meriana (YS): letlapa la meriana, ho roala tsoekere, phofo ea mocheso oa prickly, lengolo la ngaka la meriana ea Machaena, kenyelletso ea lijo, moemeli oa ho itšehla thajana, joalo-joalo.

(3) Coating grade (TL): e sebelisetsoang pigment e tšoeu ea 'mele le mefuta eohle ea metsi, e thehiloeng ka oli, ea liindasteri tsa resin, primer, pente e sireletsang, joalo-joalo.

(4) Pampiri grade (zz): e sebelisoa e le filler bakeng sa mefuta eohle ea pampiri le paperboard, lehong sekontiri se laolang sekontiri.

(5) Plastic grade (SL): e sebelisoa e le filler bakeng sa polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene, polyester le polasetiki tse ling.

(6) Rubber grade (AJ): e sebelisetsoang rabara filler le anti adhesion agent ea lihlahisoa tsa rabara.