Qhov sib txawv tseem ceeb ntawm fluorapatite thiab hydroxyapatite yog fluorapatite muaj calcium phosphate koom nrog fluoride pawg, hos hydroxyapatite muaj calcium phosphate koom nrog pawg hydroxide.
Ob leeg fluorapatite thiab hydroxyapatite yog phosphate-muaj cov zaub mov. Cov no yog cov ntawv calcium phosphate uas muaj cov pab pawg sib txawv. Ntawd yog, fluorapatite muaj fluorine pawg, thaum hydroxyapatite muaj hydroxide pawg.
YFluorapatite yog dab tsi?
Fluorapatite lossis fluoroapatite yog cov ntxhia phosphate uas muaj cov tshuaj formula Ca 5(PO 4) 3 F. Cov ntxhia no poob rau hauv qeb ntawm pawg apatite. Tsis tas li ntawd, nws tshwm sim raws li ib qho nyuaj, crystalline khoom uas tuaj yeem muaj ntau yam xim, suav nrog ntsuab, xim av, xiav, daj, violet, thiab qee zaum cov khoom tuaj yeem tsis muaj xim. Cov xim txawv no tshwm sim vim muaj lossis tsis muaj qee yam kev hloov pauv hlau.
Daim duab 01: Fluorapatite
Ntxiv mus, cov qauv siv lead ua ntawm fluorapatite yog hexagonal. Tsis tas li ntawd, qhov cleavage ntawm cov pob zeb no yog indistinct, thiab nws cov pob txha tuaj yeem piav qhia tias yog nkig lossis conchoidal. Tsis tas li ntawd, cov ntxhia no yog qhov nyuaj heev; Mohs hardness tus nqi yog 5. Thiab, nws muaj ib tug vitreous luster nrog ib tug dawb coloured ntxhia streak. Tsis tas li ntawd, cov ntxhia no yog pob tshab lossis opaque.
Ntawm lwm cov phosphate minerals, fluorapatite yog cov ntxhia ntau tshaj plaws thiab muaj phosphate minerals. Peb tuaj yeem pom nws hauv ntau lub pob zeb tsis zoo. Nws kuj tuaj yeem tshwm sim hauv qee lub tshuab lom neeg. E.g. nyob rau hauv cov hniav ntawm sharks thiab lwm yam ntses, nyob rau hauv tib neeg cov hniav uas tau raug fluoride ions nyob rau hauv dej, thiab lwm yam.
Kev tsim cov fluorapatite tuaj yeem ua tiav hauv peb kauj ruam ntxiv nrog rau kev khawb av los ntawm qhov chaw ntuj. Thawj kauj ruam, peb yuav tsum tsim cov calcium phosphate los ntawm kev sib txuas cov calcium thiab phosphate ntsev. Cov pH yog nruab nrab ntawm no. Tom qab ntawd, cov khoom no yog reacted nrog fluoride qhov chaw kom tau cov ntxhia. Thaum kawg, peb tuaj yeem ntxuav fluorapatite kom tshem tawm cov impurities.
Muaj ntau yam kev siv fluorapatite. Piv txwv li, kev tsim cov phosphoric acid, zus tau tej cov hydrogen fluoride raws li ib tug byproduct thaum lub sij hawm zus tau tej cov phosphoric acid, tiam fluorescence raj phosphors, raws li gemstone, thiab lwm yam.
Hydroxyapatite yog dab tsi?
Hydroxyapatite yog phosphate ntxhia muaj cov tshuaj formula Ca 5(PO 4) 3 OH. Nws yog ib pab pawg neeg apatite ntxhia. Cov pab pawg hydroxide ntawm cov khoom siv no tuaj yeem hloov tau nrog lwm pab pawg xws li fluoride pawg, chloride pawg, carbonate pawg, thiab lwm yam. Lub kaw lus siv lead ua ntawm cov tshuaj no yog hexagonal. Daim ntawv ntshiab ntawm hydroxyapatite tshwm hauv cov xim dawb. Tab sis, cov impurities tuaj yeem muab nws ntau yam xim, suav nrog grey, daj, thiab xim daj-ntsuab.
Daim duab 02: Hydroxyapatite
Tsis tas li ntawd, qhov tawg ntawm cov pob zeb no yog conchoidal, thiab nws nkig thaum lub zog siv rau nws. Lub hardness ntawm cov ntxhia no zoo ib yam li cov fluorapatite thiab Mohs scale hardness qhov tseem ceeb 5. Nws muaj ib tug vitreous luster thiab ib tug dawb ntxhia streak. Tsis tas li, feem ntau, hydroxyapatite yog pob tshab lossis translucent.
Dhau li ntawm, ntxiv rau kev tsuas yog los ntawm cov khoom siv ntuj, peb tuaj yeem ua cov tshuaj hydroxyapatite ntawm ntau txoj hauv kev. Cov txheej txheem no muaj xws li tshuaj deposition, biomimetic deposition, sol-gel txheej txheem, thiab electrodeposition.
Ntxiv mus, muaj ntau qhov tseem ceeb siv hydroxyapatite. Cov ntawv thov no feem ntau yog nyob rau hauv cov tshuaj pleev ib ce, tshuaj thiab tshuaj ntxiv. Hauv kev lag luam tshuaj pleev ib ce, hydroxyapatite yog siv nyob rau hauv qee qhov kev hloov pauv ntawm pob kws-raws li tus me nyuam hmoov. Nws yog ntxiv raws li ib tug emollient los pab kom cov dej noo ntawm daim tawv nqaij. Hauv kev lag luam tshuaj, hydroxyapatite yog siv rau kev tsim cov pob txha grafting cov ntaub ntawv. Hauv kev tsim cov tshuaj ntxiv, cov ntxhia no yog siv los ua cov pob txha tsim ntxiv nrog lub peev xwm nqus tau zoo dua piv rau calcium.
Qhov txawv ntawm Fluorapatite thiab Hydroxyapatite yog dab tsi?
Qhov sib txawv tseem ceeb ntawm fluorapatite thiab hydroxyapatite yog fluorapatite muaj calcium phosphate koom nrog pawg fluoride, hos hydroxyapatite muaj calcium phosphate koom nrog pawg hydroxide. Ntxiv mus, fluorapatite muaj ntau yam xim, suav nrog ntsuab, xim av, xiav, daj, violet, thiab qee zaum cov khoom tuaj yeem tsis muaj xim. Tab sis, daim ntawv ntshiab ntawm hydroxyapatite yog dawb, tab sis impurities tuaj yeem ua rau grey, daj, lossis daj-ntsuab.
Hauv qab infographic qhia ntau ntxiv txog qhov sib txawv ntawm fluorapatite thiab hydroxyapatite.
Summary – Fluorapatite vs Hydroxyapatite
Ob leeg fluorapatite thiab hydroxyapatite yog phosphate-muaj cov zaub mov. Qhov sib txawv tseem ceeb ntawm fluorapatite thiab hydroxyapatite yog fluorapatite muaj calcium phosphate koom nrog pawg fluoride, hos hydroxyapatite muaj calcium phosphate koom nrog pawg hydroxide.
