ʻO ka mea nui o ka talc he hydrotalcite hydrous magnesium silicate me ka molecular formula o mg3 [si4o10] (OH) 2. No ka ʻōnaehana monoclinic ka talc.He pseudohexagonal a rhombic paha ke aniani, i kekahi manawa.ʻO ka maʻamau lākou he mau ʻāpana nui, lau, radial a me nā fibrous aggregates.ʻAʻole waihoʻoluʻu a ʻākala a keʻokeʻo paha, akā he ʻōmaʻomaʻo māmā, melemele māmā, ʻeleʻele ʻulaʻula a ʻulaʻula paha ma muli o ka liʻiliʻi o nā haumia;ʻO ka ʻili o ka māhele he momi ʻōlinolino.ʻO ka paʻakikī 1, ka umekaumaha kikoʻī 2.7-2.8.

Loaʻa i ka Talc pauka nā waiwai kino a me nā kemika maikaʻi e like me ka lubricity, ke pale ahi, ka pale ʻana i ka waikawa, ka insulation, ka helu hoʻoheheʻe kiʻekiʻe, ka hana ʻole o ka kemika, ka mana uhi maikaʻi, palupalu, luster maikaʻi, adsorption ikaika, etc. loaʻa iā ia ka maʻalahi o ka māhele ʻana i nā unahi a me ka lubricity kūikawā.Inā kiʻekiʻe loa ka ʻike o Fe2O3, e hoʻemi ʻia kona insulation.

Hoʻohana i ka talc:

(1) Cosmetics grade (Hz): hoʻohana ʻia no nā ʻano pauka moisturizing, pauka nani, talcum pauka, etc.

(2) Lapaʻau ʻai meaʻai (YS): lāʻau lapaʻau papa, ka uhi kō, prickly wela pauka, ka lāʻau lapaʻau Kina, mea hoʻohui meaʻai, mea hoʻokaʻawale, etc.

(3) Coating grade (TL): hoʻohana ʻia no ka puaʻa keʻokeʻo keʻokeʻo a me nā ʻano wai like ʻole, ka aila, ka resin industri coatings, primer, pale pale, etc.

(4) Papa pepa (zz): hoʻohana ʻia ma ke ʻano he mea hoʻopiha no nā ʻano pepa āpau a me ka pepa pepa, ka lāʻau asphalt control agent.

(5) Plastic grade (SL): hoʻohana ʻia e like me ka hoʻopiha piha ʻana no ka polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene, polyester a me nā plastics ʻē aʻe.

(6) Rubber grade (AJ): hoʻohana ʻia no ka hoʻopiha piha ʻana a me ka anti adhesion agent o nā huahana lāʻau.