Tej zaum, txhua tus tsawg kawg ib zaug hauv lawv lub neej siv talc rau ib lub hom phiaj lossis lwm qhov. Txawm li cas los xij, talc puas yog pob zeb lossis pob zeb? Lub pob zeb no muaj ntau yam khoom tshwj xeeb. Vim li no, nws yog siv nyob rau hauv cosmetology, thiab rau zus tau tej cov me nyuam cov tawv nqaij cov khoom, thiab nyob rau hauv kev lag luam (tsim xim thiab varnishes, mechanical engineering, thiab lwm yam)
Tshuaj muaj pes tsawg leeg ntawm talc
Talc yog hydrous magnesium silicate. Nws cov tshuaj formula yog kwv yees li hauv qab no: Mg3Si4O10(OH)2. Qhov kev sib xyaw no tuaj yeem muaj kev hloov pauv, vim qee qhov ntawm silicon hloov pauv los ntawm txhuas, titanium, magnesium - los ntawm hlau lossis manganese. Nws yuav tsum raug sau tseg tias talc yog cov ntxhia uas yuav luag insoluble hauv dej thiab acids. Tus nqi ntawm impurities nyob ntawm qhov chaw ntawm nws cov extraction. Nws tau ntev tau mined hauv Egypt, nyob ib ncig ntawm Tuam Tshoj. Ib lub pob zeb zoo nkauj kuj pom muaj nyob hauv Poland, Czech koom pheej, thiab Fabkis. Nyob rau hauv Russia, lub ntsiab deposits nyob rau hauv lub Urals, nyob rau hauv lub Baikal cheeb tsam, Krasnoyarskntug. Cov pob zeb no yog tsim nyob rau hauv cov xwm txheej ntawm metamorphism. Cov xwm txheej tsim nyog rau kev tsim cov talc yog qhov kub txog li 400 ° C, cov dej txaus (tom qab kev hloov pauv ntawm cov zaub mov los ntawm cov pob zeb uas muaj hlau thiab magnesium). Vim nws cov yam ntxwv, talc yog cov ntxhia ntawm qee cov pob zeb. Muaj ntau hom talc.
Mineral ntau yam
Nyob ntawm cov qauv nta thiab muaj qee yam impurities, cov nram qab no hom talc yog txawv. Agalite muaj qhov sib luag (lossis tangled) kev npaj ntawm crystal fibers. Minnesotaite yog cov ntxhia uas nyob ze rau xim av (vim muaj cov hlau, uas hloov magnesium). Steatite muaj cov qauv ntom ntom. Nws tseem hu ua "rog". Lub xub ntiag ntawm npib tsib xee nyob rau hauv muaj pes tsawg leeg yog tus yam ntxwv ntawm willemseite. Cov xim ntawm lub pob zeb no yog xiav lossis ntsuab. Talcochlorite muaj chlorite ua impurity. Feem ntau muaj noble talc. Nws yog ib lub pob zeb ntawm siab ceev, translucent (los yog me ntsis dawb). Xws li cov ntxhia qiv nws tus kheej zoo rau kev ua haujlwm.
Lub cev yam ntxwv tseem ceeb ntawm cov ntxhia
Lub pob zeb no muaj cov xim zoo nkauj rau xim av. Hauv hmoov, nws cov xim yog dawb. Talc yog cov ntxhia softest, nrog rau hardness ntawm ib qho ntawm Mohs nplai. Qhov kev ntxhib los mos ntawm cov khoom zoo ib yam li xab npum, nws yog greasy me ntsis rau qhov kov. Elasticity tsawg, txawm tias nws khoov tau yooj yim. Talc yog qhov tsis zoo ntawm cov hluav taws xob thiab hluav taws xob. Cov mineral adsorbs dej zoo thiab tsis muaj tshuaj lom. Yuav sterilized nrogkub 160 ° C (tsawg kawg ib teev).
Talc hauv tshuaj
Talc yog siv dav hauv kev tsim tshuaj. Nws tuaj yeem pom nyob rau hauv ntau cov tshuaj ntsiav thiab ntsiav tshuaj. Txawm li cas los xij, nws cov concentration hauv qhov no yuav tsum tsis pub tshaj 30%. Talc tsis pom zoo kom noj qhov ncauj ntawm qhov kub ntawm lub cev. Tsis tas li ntawd, contraindications yog cov kab mob ntawm cov kab mob hauv lub cev xws li lub plab, spleen. Kev saib xyuas tshwj xeeb yuav tsum tau noj nrog kev npaj muaj cov ntxhia no, cov poj niam cev xeeb tub thiab lactating. Talcum pob zeb rhuab mus rau ib tug tej yam kub yog siv los sov tej qhov chaw ntawm lub cev. Talcum hmoov yog dav siv los ua tus neeg sawv cev sab nraud. Hauv qhov no, nws cov concentration tau tso cai nyob rau hauv thaj tsam ntawm 90-99%. Talc yog ib qho me me hmoov uas zoo kawg nkaus tshem tawm cov dej noo ntau dhau, yog li tiv thaiv tus menyuam mos ntawm daim tawv nqaij los ntawm kev khaus. Txawm li cas los xij, cov ntsiab lus no yuav tsum tau coj mus rau hauv tus account: kev nqus tau ntev ntev lossis siv cov hmoov ntawm cov ntxhia no tuaj yeem ua rau muaj teeb meem nrog kev ua pa, hloov cov ntaub so ntswg.
Ntse me nyuam hmoov
Vim tias talc yog cov hmoov uas nkag mus rau hauv tus menyuam cov tawv nqaij ncaj qha, nws yuav tsum tau ua kom tsis muaj menyuam. Ntxiv nrog rau cov ntxhia no, cov muaj pes tsawg leeg suav nrog cov hmoov txhuv nplej siab, zinc oxide. Tsis tas li ntawd, qee cov tuam txhab lag luam tuaj yeem siv cov khoom xyaw xws li nplej hmoov nplej, pob kws hmoov nplej. Nws yog ib qho tsim nyog kom tsis txhob muaj cov hmoov uas muaj ntxhiab tsw ntxhiab, cov qauv sib txawv. Muaj cov nram qab no hom tshuaj pleev ib cetxhais tau tias: hmoov-hmoov thiab kua talc. Cov hmoov muaj zoo deodorizing thiab antiseptic zog. Txawm li cas los xij, thaum siv, tus menyuam yuav nqus tau qee qhov ntxhia hmoov. Cov kua talc yog ib qho yooj yim mus use, thaum siv rau saum npoo ntawm daim tawv nqaij, nws hloov mus rau hauv hmoov thiab absorbs tshaj noo noo. Vim nws qhov sib xws, talc tsis yob rau hauv pob. Txawm li cas los xij, nws tus nqi yog me ntsis siab dua li cov hmoov zoo tib yam. Cov kws tshaj lij pom zoo kom siv talcum hmoov ua hmoov los ntawm lub hlis thib ob ntawm tus menyuam lub neej. Tsis txhob siv nws ncaj qha rau ntawm daim tawv nqaij. Nws yog qhov zoo tshaj plaws los nchuav ua ntej ntawm cov paj rwb los yog koj tus kheej xib teg, thiab tsuas yog tom qab ntawd siv cov hmoov txhuam ntawm lub qhov quav ntawm tus menyuam daim tawv nqaij.
YKev siv talc hauv cosmetology
Yuav luag txhua qhov muag ntxoov ntxoo muaj talcum hmoov. Nws yog ntuj adsorbent uas tso cai rau pleev kom nyob rau ntawm daim tawv nqaij ntev. Tsis tas li ntawd, cov hmoov no tau nkag mus rau hauv cov muaj pes tsawg leeg thiab lub ntsej muag cream. Xws li cov tshuaj pleev ib ce pab cov tawv nqaij kom nyob twj ywm mos, du, qhuav. Talc muaj peev xwm nqus tau txhua yam tshuaj, co toxins los ntawm qhov chaw ntawm lub epidermis. Yog li ntawd, daim tawv nqaij tau txais kev tiv thaiv ntxiv los ntawm kev puas tsuaj. Qee cov kev tshawb fawb qhia tias cov ntxhia no tuaj yeem tiv thaiv kev loj hlob thiab kev tsim tawm ntawm qee yam kab mob (piv txwv li, typhoid fever). Feem ntau, talc yog siv nyob rau hauv qhuav deodorants. Nws kuj yog ib feem ntawm lub ntsej muag lub ntsej muag. Cov hmoov yog raug rau tej yamkev xav tau. Ua ntej, nws yuav tsum tau ntxuav kom huv si ntawm impurities thiab microorganisms, thiab tsis muaj ntxhiab. Qhov thib ob, kuj tseem muaj kev txwv txog qhov loj me me. Qee zaum, lawv yuav tsum tsis txhob me me kom tsis txhob txhaws qhov pores ntawm epidermis.
Talc yog yam khoom siv rau kev lag luam niaj hnub no?
Ntxiv rau cov tshuaj thiab cosmetology, talc yog siv hauv ntau qhov kev lag luam. Lawv npog txhua yam khoom ua los ntawm cov roj hmab, yas, roj hmab los tiv thaiv lawv los ntawm kev sib tsoo. Talc kuj tseem siv rau hauv kev lag luam khoom noj (raws li kev muab tub lim, additive). Kev lag luam ntawv kuj siv cov khoom siv no. Daim ntawv talc-coated absorbs number case zoo heev. Nws yog qhov xav tau hauv tsoomfwv cov koomhaum (rau cov ntaub ntawv tseem ceeb tshwj xeeb). Hauv kev lag luam khaub ncaws, chalk feem ntau hloov nrog compressed talc. Nws ua rau cov qhab nia zoo, nws yooj yim dua tshem tawm ntawm cov ntaub. Vim nws cov thermal thiab hluav taws xob insulating zog, cov pob zeb hauv av yog siv rau hauv kev lag luam ceramic (kom muaj zog tiv thaiv hluav taws xob ntau zaus).
