Gawo lalikulu la talc ndi hydrotalcite hydrous magnesium silicate yokhala ndi molekyulu ya mg3 [si4o10] (OH) 2. Talc ndi ya monoclinic system. Kristalo ndi pseudohexagonal kapena rhombic, nthawi zina. Nthawi zambiri amakhala okhuthala, obiriwira, ozungulira komanso ophatikizika. Ndi yopanda mtundu komanso yowonekera kapena yoyera, koma ndi yobiriwira pang'ono, yachikasu pang'ono, yofiirira pang'ono kapena yofiira pang'ono chifukwa cha zodetsa zochepa; pamwamba pa mpata ndi pearl luster. Kulimba 1, mphamvu yeniyeni 2.7-2.8.

Ufa wa talc uli ndi zinthu zabwino kwambiri monga mafuta, kukana moto, kukana asidi, kutchinjiriza, kusungunuka kwambiri, kusagwira ntchito kwa mankhwala, mphamvu yabwino yophimba, kufewa, kunyezimira bwino, kulowetsedwa kwamphamvu, ndi zina zotero. Chifukwa kapangidwe ka kristalo ka talc kali ndi zigawo, kamakhala ndi chizolowezi chogawanika mosavuta m'mamba ndi mafuta apadera. Ngati kuchuluka kwa Fe2O3 kuli kwakukulu kwambiri, kutchinjiriza kwake kudzachepa.

Kugwiritsa ntchito talc:

(1) Gulu la Zodzoladzola (Hz): limagwiritsidwa ntchito pa mitundu yonse ya ufa wonyowetsa, ufa wokongoletsa, ufa wa talcum, ndi zina zotero.

(2) Mlingo wa chakudya cha mankhwala (YS): piritsi la mankhwala, chophimba shuga, ufa wotentha woyaka, mankhwala a ku China, zowonjezera chakudya, chosungunula, ndi zina zotero.

(3) Mtundu wa zokutira (TL): umagwiritsidwa ntchito popanga utoto woyera wa thupi ndi mitundu yonse ya zokutira zochokera m'madzi, zochokera ku mafuta, zophimba zamakampani zopangidwa ndi utomoni, primer, utoto woteteza, ndi zina zotero.

(4) Mtundu wa pepala (zz): umagwiritsidwa ntchito ngati chodzaza mitundu yonse ya mapepala ndi bolodi la mapepala, chowongolera phula lamatabwa.

(5) Gulu la pulasitiki (SL): limagwiritsidwa ntchito ngati chodzaza cha polypropylene, nayiloni, polyvinyl chloride, polyethylene, polystyrene, polyester ndi mapulasitiki ena.

(6) Mtundu wa rabara (AJ): umagwiritsidwa ntchito podzaza rabara ndi mankhwala oletsa kumatira zinthu za rabara.