Noj qab haus huv, Npaj
Talc - ib tug mineral los yog pob zeb? Talc tus me nyuam hmoov
Tej zaum sawv daws nyob tsawg kawg ib zaug nyob rau hauv lawv lub neej siv nyob rau hauv ntau lub hom phiaj talc. Txawm li cas los, talc - ib tug mineral los yog pob zeb? Lub pob zeb no muaj ib tug xov tooj ntawm tej khoom. Vim qhov no nws kuj yog siv nyob rau hauv tshuaj pleev ib ce thiab rau qhov siv thiab ntawm cov me nyuam cov khoom rau kev tu tawv nqaij, thiab nyob rau hauv kev lag luam (zus tau tej cov xim formulations, machinery, thiab hais txog. N.)
Cov tshuaj nyob tus yeees ntawm talc
Talc - ib tug hydrous magnesium silicate. Nws tshuaj mis yog hais txog: Mg3Si4O10 (OH) 2. Qhov no muaj pes tsawg leeg yuav muaj variations, raws li ib feem ntawm silicon yog hloov nyob rau hauv tej rooj plaub, txhuas, titanium, magnesium - hlau los yog manganese. Nws yog ib nqi sau cia hais tias lub talc - ib tug mineral uas yog yuav luag insoluble nyob rau hauv dej, acids. Tus nqi ntawm cov impurities yog nyob rau ntawm qhov chaw nws ntau lawm. Nws tau ntev tau mined nyob rau hauv Iyi tebchaws, thiab cov cheeb tsam surrounding ntawm Tuam Tshoj. High-zoo mineral yog tseem pom nyob rau hauv teb chaws Poland, Czech koom pheej, Fabkis. Nyob rau hauv Russia, lub ntsiab deposits yog nyob rau hauv lub Urals, lub Baikal, Krasnoyarsk Territory. Tsim no mineral nyob rau hauv metamorphic tej yam kev mob. Tsim nyog tej yam kev mob rau cov tsim ntawm talc - kub ntawm txog 400 ° C, ib tug txaus tus nqi ntawm cov dej (tom qab transformation ntawm cov zaub mov hlau thiab magnesium nplua nuj pob zeb). Vim hais tias ntawm nws tus yam ntxwv, talc - ib tug mineral ntawm tej pob zeb. Muaj ob peb hom talc.
mineral hom
Nyob ntawm seb lub yam ntxwv nta thiab muaj ntawm tej yam impurities, lub nram qab no ntawm talc. Malaga muaj ib tug uas tig mus (los yog entangled) fibers qhov chaw muaju. Ntshiab - yog ib tug mineral uas nws yog xim los ze zog mus xim av (vim lub xub ntiag ntawm hlau, uas tau ntau xyoo qhov magnesium). Steatite muaj ib tug tuab qauv. "Wen" tsis tau nws yog hu ua. Lub xub ntiag ntawm npib tsib xee yog raug rau villemseita. Cov xim ntawm cov pob zeb - ib tug xiav los yog greenish. Talkohlorit li impurities muaj chlorite. Heev feem ntau muaj yog ib tug noble talc. Qhov no kev kub ceev ntawm lub pob zeb, ib tug translucent (los yog me ntsis dawb). Qhov no mineral yog zoo kho.
Lub ntsiab lub cev tus yam ntxwv ntawm cov mineral
Lub pob zeb no muaj ib cov xim los ntawm translucent rau xim av. Lub hmoov yog nws cov xim - dawb. Talc - yog softest mineral, nws hardness yog ib chav tsev nyob rau hauv lub Mohs scale. Raws li cov kev ntxhib los mos ntawm cov ntaub ntawv uas tsa ib tug xab npum, nws yog ib tug me ntsis greasy mus rau lub kov. Lub elasticity yog tsawg tsawg, tab sis nws yog ib qho yooj yim khoov. Talc yog ib tug neeg txom nyem neeg xyuas pib ntawm hluav taws xob, cua sov. Mineral absorbs dej zoo, yog tsis yog-tshuaj lom. Yuav tiv thaiv kom tsis muaj menyuam nyob hauv ib tug kub ntawm 160 ° C (tsis tsawg tshaj li ib teev).
Talc nyob rau hauv cov tshuaj
Talc yog dav siv nyob rau hauv qhov siv thiab ua pharmaceuticals. Nws yuav pom nyob rau hauv nyob tus yeees ntawm ntau yam ntawm tsiav tshuaj, ntsiav tshuaj. Txawm li cas los, nws concentration nyob rau hauv cov ntaub ntawv no yuav tsum tsis pub tshaj 30%. Talc yog tsis pom zoo kom yuav tsum tau noj ntawm ncauj ntawm lub cev kub zog. Tsis tas li ntawd contraindications yog cov kab mob ntawm hauv nruab nrog cev xws li lub plab, tus po. Nrog huab ceev faj yuav tsum tau coj mus rau formulations muaj no mineral, cev xeeb tub thiab lactating cov poj niam. Rhuab mus rau ib tug kub ntawm talc pob zeb yog siv rau cov cua sov tej cov cheeb tsam ntawm lub cev. Talc hmoov yog dav siv raws li ib tug sab nraud tus neeg saib xyuas. Nyob rau hauv cov ntaub ntawv no, nws concentration tso cai tsis pub dhau 90-99%. Talc - ib tug me nyuam hmoov, uas txig tuskheej tshaj noo noo, li no tiv thaiv cov me tus me nyuam daim tawv nqaij los ntawm voos. Txawm li cas los, nws yuav tsum tau coj mus rau hauv tus account thiab tej lub sij hawm: lub caij nyoog raug mus rau los yog siv ntawm no mineral hmoov yuav ua rau ua pa muaj teeb meem, kev hloov nyob rau hauv cov ntaub so ntswg.
Tshwj xeeb tshaj yog hmoov rau cov me nyuam
Txij li thaum talc - yog ib tug hmoov, uas yog nyob rau hauv ncaj qha kev sib cuag nrog cov tawv nqaij ntawm tus me nyuam, nws yuav tsum tau yuav sterilized. Sib nrug ntawm no mineral nyob rau hauv muaj pes tsawg leeg muaj xws li starch, zinc oxide. Tsis tas li ntawd, ib co manufacturers yuav siv cov khoom xyaw xws li mov starch, hmoov nplej pob kws. Yuav tsum tsis txhob hmoov uas muaj ib tug pungent tsis hnov tsw, tsis yog niaj hnub zoo li cov qauv. Cov nram qab no hom ntawm kom hniav zoo nkauj khoom: hmoov-cov hmoov thiab kua talc. Hmoov muaj zoo deodorant thiab antiseptic thaj. Txawm li cas los, thaum uas siv cov me nyuam muaj peev xwm nqus tau ib co ntawm cov mineral hmoov. Kua talc yog ib qho yooj yim mus siv thaum ua ntawv thov rau ntawm daim tawv nqaij saum npoo nws yog hloov dua siab tshiab rau hauv ib lub hmoov thiab absorbs tshaj noo noo. Vim lub taub hau, talc yog tsis dov rau hauv lumps. Txawm li cas los, nws them yog me ntsis ntau tshaj li uas ntawm zoo tib yam hmoov. Kws txawj pom zoo kom siv cov talcum hmoov raws li lub ob hlis ntawm lub neej. Tsis txhob siv nws ncaj qha mus rau ntawm daim tawv nqaij. Nws yog qhov zoo tshaj plaws ua ntej ncuav rau ib tug paj rwb ntaub qhwv to los yog nws xib teg ntawm tus kheej, thiab xwb ces thov teeb hmoov taw ntawm tus me nyuam daim tawv nqaij folds.
Kev siv cov talc nyob rau hauv tshuaj pleev ib ce
Yuav luag tag nrho cov qhov muag duab ntxoov ntxoo yuav pom nyob rau hauv nyob tus yeees ntawm cov tshuaj yeeb dej caw ua talc. Nws yog tej yam ntuj tso adsorbent, uas tso cai rau koj mus ua-up ntev ntawm daim tawv nqaij. Tsis tas li ntawd, qhov no hmoov yog nkag tau rau hauv muaj pes tsawg leeg thiab lub ntsej muag cream. Tej tshuaj pleev ib ce pab ntawm daim tawv nqaij nyob mos mos, du thiab qhuav. Talc muaj peev xwm sawv ntawm absorbing thiab ntau yam tshuaj, co toxins nrog tus nplaim lub epidermis. Raws li ib tug yuav tau txais, daim tawv nqaij twg thiaj li raug ntxiv tiv thaiv thaiv kev puas tsuaj. Tej kev tshawb fawb qhia tias qhov no mineral yuav tiv thaiv tau txoj kev loj hlob thiab tu tub tu kiv ntawm ib co kab mob (piv txwv li, typhoid fever). Heev feem ntau, talc yog siv nyob rau hauv qhuav ntawm qhuav deodorants. Nws kuj yog ib tug tivthaiv ntawm lub ntsej muag qhov ncauj qhov ntswg. Los ntawm cov hmoov yuav tsum tau raws li tej yam uas yuav tsum tau. Firstly, nws yuav tsum tau kom huv si ntxuav ntawm impurities thiab kab mob muaj tsw. Secondly, muaj ntau cov kev txwv thiab txheeb ze particle loj. Nyob rau hauv tej rooj plaub, lawv yuav tsum tsis txhob yuav tsawg heev, thiaj li tsis mus txhaws cov pores ntawm lub epidermis.
Talc - yog hais tias ntawm cov khoom rau niaj hnub kev lag luam?
Nyob rau hauv tas li ntawd mus tshuaj thiab tshuaj pleev ib ce, talc yog siv nyob rau hauv ntau industries. Lawv npog tag nrho cov hom ntawm roj hmab khoom, yas, roj hmab, los mus tiv thaiv lawv los ntawm so ua ke. Tsis tas li ntawd talc siv nyob rau hauv cov zaub mov kev lag luam (raws li ib tug tub lim, ib tug additive). Cov ntawv kev lag luam yog tseem siv cov khoom siv no. Ntawv coated nrog talcum hmoov, txig absorbs number case. Nws yog nyob rau hauv coob nyob rau hauv lub xeev lug (rau ib qho tseem ceeb cov ntaub ntawv). Cov khaub ncaws lag luam yog feem ntau hloov nrog compacted cwj mem av dawb talc. Nws ua rau zoo qib, nws yog yooj yim los mus paub nrog ib tug cov ntaub so ntswg. Vim hais tias ntawm nws cov thermal thiab hluav taws xob rwb thaiv tsev zog, ib cov mineral siv nyob rau hauv lub ceramics kev lag luam (yuav ua tau kom kuj mus high-zaus tawg).
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