Cov khoom tseem ceeb ntawm talc yog hydrotalcite hydrous magnesium silicate nrog cov mis molecular ntawm mg3 [si4o10] (OH) 2. Talc koom nrog monoclinic system. Cov siv lead ua yog pseudohexagonal lossis rhombic, qee zaum. Lawv feem ntau yog cov khoom loj heev, nplooj, radial thiab fibrous aggregates. Nws tsis muaj xim thiab pob tshab lossis dawb, tab sis nws yog lub teeb ntsuab, lub teeb daj, lub teeb xim av lossis txawm tias lub teeb liab vim muaj me ntsis ntawm cov khoom tsis huv; qhov chaw txiav yog pearl luster. Hardness 1, qhov hnyav tshwj xeeb 2.7-2.8.

Hmoov Talc muaj cov khoom zoo heev rau lub cev thiab tshuaj xws li lubricity, tiv taus hluav taws, tiv taus acid, rwb thaiv tsev, siab melting point, tshuaj tsis ua haujlwm, zoo npog zog, mos, ci ntsa iab zoo, muaj zog nqus, thiab lwm yam. Vim tias cov qauv siv lead ua ntawm talc yog txheej, nws muaj qhov yooj yim faib ua nplai thiab tshwj xeeb lubricity. Yog tias cov ntsiab lus ntawm Fe2O3 siab heev, nws cov rwb thaiv tsev yuav txo qis.

Kev siv talc:

(1) Qib tshuaj pleev ib ce (Hz): siv rau txhua yam hmoov moisturizing, hmoov zoo nkauj, hmoov talcum, thiab lwm yam.

(2) Tshuaj qib zaub mov (YS): ntsiav tshuaj, txheej qab zib, hmoov kub prickly, tshuaj suav tshuaj Suav, khoom noj khoom haus ntxiv, tus neeg sawv cev cais, thiab lwm yam.

(3) Qib txheej (TL): siv rau cov xim dawb lub cev thiab txhua yam dej-raws li, roj-raws li, resin kev lag luam coatings, primer, xim tiv thaiv, thiab lwm yam.

(4) Qib ntawv (zz): siv ua tus neeg sau rau txhua yam ntawv thiab ntawv paperboard, tus neeg sawv cev tswj ntoo asphalt.

(5) Qib yas (SL): siv ua cov khoom ntim rau polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene, polyester thiab lwm yam yas.

(6) Qib roj hmab (AJ): siv rau cov roj hmab filler thiab anti adhesion tus neeg sawv cev ntawm cov khoom roj hmab.