Chinhu chikuru chetalc ihydrotalcite hydrous magnesium silicate ine molecular formula ye mg3 [si4o10] (OH) 2. Talc ndeye monoclinic system. Kristaro iyi ipseudohexagonal kana rhombic, dzimwe nguva. Kazhinji iine makomba mahombe, mashizha, radial uye fibrous aggregates. Haina ruvara uye inoonekera kana kuti chena, asi ine girini rakachenuruka, yero rakachenuruka, brown rakachenuruka kana kuti tsvuku yakachenuruka nekuda kwekusachena kudiki; pamusoro peganda pane pearl luster. Kuoma 1, specific gravity 2.7-2.8.

Upfu hweTalc hune hunhu hwakanaka hwemuviri nemakemikari akadai sekunyorovesa, kuramba moto, kuramba acid, kudzivirira kupisa, kunyunguduka kwakanyanya, kusashanda kwemakemikari, simba rakanaka rekufukidza, kupfava, kupenya kwakanaka, kunyunguduka kwakasimba, nezvimwewo. Nekuti chimiro chekristaro chetalc chakarongwa, ine katsika kekupatsanurwa kuita zviyero uye kunyorovesa kwakakosha. Kana huwandu hweFe2O3 hwakanyanya, kudzivirira kupisa kwayo kuchaderedzwa.

Kushandiswa kwetalc:

(1) Giredhi rezvizoro (Hz): rinoshandiswa pamhando dzese dzehupfu hunonyorovesa, hupfu hwekunaka, hupfu hwetalcum, nezvimwewo.

(2) Mhando yechikafu chemushonga (YS): piritsi remushonga, chifukidziro cheshuga, hupfu hwekupisa hunobaya, mushonga weChinese, chinowedzera chikafu, chinosanganisa kupatsanurwa kwechinhu, nezvimwewo.

(3) Giredhi rekuputira (TL): rinoshandiswa pakugadzira pigment yemuviri muchena uye marudzi ese ezvipfeko zvemumaindasitiri, zvemafuta, zveresin, zveprimer, zvekudzivirira, nezvimwewo.

(4) Giredhi repepa (zz): rinoshandiswa sekuzadza mhando dzese dzemapepa nebhodhi repepa, chinoshandiswa pakudzora asphalt yematanda.

(5) Chimiro chepurasitiki (SL): chinoshandiswa sechinozadza polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene, polyester nedzimwe mapurasitiki.

(6) Rudzi rwerabha (AJ): rinoshandiswa pakuzadza rabha uye kudzivirira kunamira kwezvigadzirwa zverabha.