Khoom Taw qhia
| Calcium fluoride Cov ntaub ntawv yooj yim |
| Chemical Properties siv lead ua qauv siv txoj kev tsim khoom |
| Khoom npe: | Calcium fluoride |
| Synonyms: | CalciuM floride; Calcium fluoride, 99.9% kab hlau hauv paus; Calcium fluoride, 99.95% kab hlau hauv paus; Calcium fluoride, anhydrous, ampuled hauv qab argon, 99.99% kab hlau hauv paus; Calcium Fluoride-CNM8; ua nyob rau hauv luav;CAF1-zoo li protein;CALIFp |
| CAS: | 7789-75-5 |
| MF: | CaF 2 |
| MW: | 78.07 |
| EINECS: | 232-188-7 |
| Khoom Categories: | Inorganics; hlau halide |
| Mol File: | 7789-75-5.mol |
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| Calcium fluoride Cov Khoom Siv Tshuaj |
| Melting point | 1402 degree |
| Boiling point | 2500 degree (lit.) |
| ceev | 3.18 g / mL ntawm 25 degree (lit.) |
| Refractive Index | 1.434 |
| Fp | 2500 degree |
| cia temp. | -20 degree |
| solubility | me ntsis soluble hauv acid; insoluble hauv acetone. |
| daim ntawv | rod |
| xim | dawb |
| Specific Gravity | 3.18 |
| Dej Solubility | 0.015 g. ib 100g H20 ntawm chav tsev kub.(INSOLUBLE) |
| rhiab heev | Hygroscopic |
| Merck | 14,1667 |
| Solubility Product Constant (Ksp) | npw: 8.28 |
| Kev txwv tsis pub dhau | ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
| Dielectric tsis tu ncua | 2.5 (Ambient) |
| Kev ruaj ntseg: | ruaj khov. Calcium fluoride yog inert rau cov organic tshuaj thiab ntau cov kua qaub, nrog rau HF. Nws yuav maj mam yaj hauv nitric acid. |
| InChIKey | WUKWITHWXAAZEY-UHFFFAOYSA-L |
| CAS DataBase Reference | 7789-75-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Calcium fluoride (7789-75-5) |
| EPA Tshuaj Registry System | Calcium difluoride (7789-75-5) |
| Cov ntaub ntawv kev nyab xeeb |
| Hazard Codes | Xi, Xn |
| Risk Statements | 36/37/38 |
| Cov lus hais txog kev nyab xeeb | 26-37/39-36 |
| RIDADR | 3288 |
| WGK Germany | 1 |
| RTECS | EW1760000 |
| Ceeb toom | Irritant |
| TSCA | Yog lawm |
| HS Code | 28261900 |
| Cov Ntaub Ntawv Muaj Xwm Ceev | 7789-75-5(Cov ntaub ntawv muaj phom sij) |
| Toxicity | LD50 ip hauv nas: 2638.27 mg / kg (Stratmann) |
| MSDS Cov Ntaub Ntawv |
| Tus kws kho mob | Lus |
|---|---|
| Calcium fluoride | Lus Askiv |
| SigmaAldrich | Lus Askiv |
| ACROS | Lus Askiv |
| ALFA | Lus Askiv |
| Calcium fluoride Kev siv thiab kev sib xyaw |
| Chemical Properties | Calcium fluoride yog cov khoom xyaw tseem ceeb ntawm fluorspar lossis fluorite, cov tshuaj formula yog CaF2, nws yog xim tsis muaj xim cubic siv lead ua lossis hmoov dawb. Tus txheeb ze ceev yog 3.18, lub melting point yog 1423 degree, boiling point yog hais txog 25 00 degree . Solubility hauv dej yog tsawg, 100g dej tuaj yeem yaj tsuas yog 0.0016g ntawm 18 degree, nws yog insoluble hauv acetone, tab sis soluble hauv hydrochloric acid, hydrofluoric acid, sulfuric acid, nitric acid thiab ammonium ntsev tov, thiab nws tsis tuaj yeem hnov mob nrog dilute. acid, tab sis tuaj yeem hnov mob nrog kub concentrated sulfuric acid thiab tsim hydrofluoric acid, nws tuaj yeem tsim ib qho nyuaj thaum yaj hauv txhuas thiab hlau ntsev (Fe3 +) tov. Ntuj calcium fluoride yog cov ntxhia fluorite lossis fluorspar, feem ntau pom grey, daj, ntsuab, ntshav thiab lwm yam xim, qee zaum nws tsis muaj xim, pob tshab, ci iav, nkig, thiab cov txheeb ze ntom ntom yog 3.01 ~ 3.25, nws muaj qhov tshwm sim tseem ceeb ntawm fluorescence. Nws tuaj yeem siv los ua cov fluorine thiab cov khoom siv los ua hydrofluoric acid system, fluoride; thiab nws kuj tseem siv tau los ntawm kev tsim cov iav, enamel, glaze. Fluorite feem ntau yog siv los ua flux hauv metallurgy, cov fluorspar ntshiab heev tuaj yeem siv los ua cov lo ntsiab muag tshwj xeeb. Dej thaum muaj (1 ~ 1.5) × 10-6 calcium fluoride tuaj yeem tiv thaiv teeb meem hniav. Tsis tas li ntawd, nws tuaj yeem siv rau hauv smelting hlau thiab hlau, tshuaj, iav, ceramics manufacturing. Cov khoom ntshiab tuaj yeem siv rau catalyst ntawm lub cev qhuav dej, dehydrogenation. Los ntawm cov txiaj ntsig ntawm cov ntsev calcium uas tsis muaj ntsev (calcium carbonate lossis calcium hydroxide) thiab sodium fluoride lossis hydrofluoric acid, ammonium fluoride, calcium fluoride tuaj yeem tau. |
| siv lead ua qauv | Calcium fluoride yog ib qho siv lead ua ionic nrog cov fluorine anions nyob rau hauv ib qho yooj yim cubic array thiab calcium cations nyob rau hauv ib nrab ntawm lub cubic qhov chaw ntawm cov qauv. Cov calcium ions kuj tuaj yeem xav tias yog nyob rau ntawm "nthuav" fcc lattice nrog cov fluorine ions ua rau lawv cov lattice sib cais yog 0.39 nm. Qhov kev sawv cev no muaj nyob rau hauv daim duab qis dua. Lub cell muaj 4 Ca2+ions thiab 8 F1-ions. Cov khoom yog pob tshab nyob rau hauv lub pom spectral cheeb tsam, thiab qhia tau hais tias hluav taws xob optical adsorption nyob rau hauv lub ultra violet thiab lattice optical absorption nyob rau hauv lub infrared. |
| Siv |
Kev lag luam
Daim ntawv thov
Lub luag haujlwm / txiaj ntsig
Kev tsim tshuaj
Kev tsim cov hydrofluoric acid thiab fluoride
Raw khoom / qhov chaw ntawm fluoride
Kev tsim cov tshuaj fluorine zoo thiab hluavtaws cryolite
Raw khoom / qhov chaw ntawm fluoride
Architectural khoom
Kev tsim cov iav
Fluxing tus neeg sawv cev / txhawb nqa lub melting ntawm raw khoom
Kev tsim cov cement
Mineralization tus neeg sawv cev
Kev tsim ntawm ceramic glaze
Fluxes thiab coloring pab
metallurgy
Hlau thiab hlau smelting, ferroalloy ntau lawm, thiab lwm yam.
Fluxing tus neeg sawv cev / txo qhov melting point ntawm refractory tshuaj
Tshuaj kho mob
Kev kho, tswj, tiv thaiv, & txhim kho kev tsis haum tshuaj
Txhawb kev tsim cov pob txha tshiab
Thermal imaging systems, spectroscopy, telescopes thiab excimer lasers
Tsim cov khoom siv kho qhov muag, xws li qhov rais thiab lo ntsiab muag
Cov khoom siv raw / dav ntawm kev sib kis lub teeb frequencies; qis refractive index; siab thermal stability
Lwm tus
Kev tsim cov khoom siv vuam
Cov khoom tseem ceeb hauv cov txheej txheem vuam rods thiab vuam hmoov
Dehydration thiab dehydrogenation cov tshuaj tiv thaiv
Catalyst / ceev cov txheej txheem ntawm cov tshuaj tiv thaiv
Kev tsim khoom ntawm cov brake hauv ob sab phlu
Ntxiv / pab txo qhov puas tsuaj los ntawm kev kub ntxhov thiab kev sib txhuam
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| Txoj kev tsim khoom | Cov fluorite deposits uas tau pom nyob rau hauv Suav teb, yog lub ntsiab siv lub mine siv underground mining txoj kev, los yog ntiav qhib-qhov mining, thiab underground mining, rau ore lub cev feem ntau qaij txoj leeg, lub extension kuj loj. Txoj kev tsuas yog ua raws li qhov ntiav qhov Shrinkage Method raws li. Mining txheej txheem pom "phosphate pob zeb." Txoj kev tau txais txiaj ntsig muaj ob hom feem ntau, ib qho yog cov ore raw tuaj yeem ua cov khoom tsim nyog ore mloog zoo los ntawm kev tuav xaiv, qhov thib ob yog txhais tes xaiv lean ore thiab tailings. |
| Kev piav qhia | Calcium fluoride yog cov xim tsis muaj kob crystalline lossis dawb, cov khoom siv hmoov. Molecular hnyav{{0}}. Boilingpoint =2495 degree ; Txias / Melting point =1423 degree . HazardIdentification (raws li NFPA-704 M Rating System): Kev Noj Qab Haus Huv 2, Flammability 0, Reactivity 0. Xyaum insolublein dej. |
| Chemical Properties | Calcium fluoride, CaF2, tseem hu ua fluorite thiab feldspar, yog cov khoom tsis muaj xim uas muaj cov cubic crystals. Nws muaj cov dej solubility tsawg, tab sis yooj yim soluble hauv ammonium ntsev daws. Calcium fluoride yog siv nyob rau hauv lub synthesis ntawm hydrofluoric acid thiab nyob rau hauv etching iav. Calcium Fluoride tsis yog hygroscopic thiab yog qhov tsis zoo. Nws muaj qhov ua tau zoo txaus rau thermal thiab mechanical shock, thiab nws tau yooj yim fabricated rau ntau yam ntawm cov ntsuas ntsuas geometries. Calcium Fluoride muaj lub vapor siab tsawg heev, tso cai rau nws siv rau ntau hom kev siv lub tshuab nqus tsev. Nws yog insoluble hauv dej thiab feem ntau cov kuab tshuaj organic, tso cai rau cov qauv siv hluav taws xob hauv kev daws teeb meem kom muab tso rau hauv kev sib cuag nrog cov siv lead ua. Calcium Fluoride yog cov khoom siv pob tshab siv rau kev kuaj pom -rays txog li ob peb puas keV thiab txhawm rau txhawm rau txhawm rau them cov khoom. Vim tias nws cov lej atomic tsawg, cov khoom siv photofraction yog qhov me me uas txwv tsis pub siv hauv-ray spectrometry ntawm lub zog siab dua. Txawm li cas los xij, tus lej atomic tsawg ua rau Calcium Fluoride yog ib qho khoom siv zoo tshaj plaws rau kev tshawb pom ntawm -particles vim qhov me me ntawm backscattering. |
| Lub cev muaj zog | Dawb cubic siv lead ua los yog hmoov; refractive index 1.434; ceev 3.18 g / cm3; hardness 4 Mohs; melts ntawm 1,418 degree; vaporizes ntawm 2,533 degree; insoluble hauv dej (16 mg / L ntawm 20 degree); Ksp 3.9x10-11; me ntsis soluble nyob rau hauv dilute mineral acid; soluble nyob rau hauv concentrated acids (nrog cov tshuaj tiv thaiv). |
| Siv | Ib txwm tshwm sim CaF2 yog qhov tseem ceeb ntawm hydrogenfluoride, cov khoom siv tshuaj siv los tsim ntau yam khoom siv. Fluoride yog liberated los ntawm cov ntxhia los ntawm kev ua ntawm concentrated sulfuric acid: CaF2 (solid) + H2SO4 (liq) → CaSO4 (solid) + 2HF (gas) CaF2 yog siv los ua cov khoom siv kho qhov muag vim nws cov tshuaj ruaj khov nyob rau hauv cov xwm txheej tsis zoo.Calcium fluoride feem ntau yog siv los ua cov khoom siv qhov rais rau ob qho tib si infrared thiab ultraviolet wavelengths, vim nws yog pob tshab hauv cov cheeb tsam no (txog 0.15 txog 9. mm) thiab nthuav tawm qhov ntsuas qis heev. Calcium Fluoride yog cov dej tsis muaj calcium uas siv rau hauv cov ntaub ntawv siv oxygen, xws li hlau tsim. Hauv qhov tsis tshua muaj siab (ppm), cov tshuaj fluoride yog siv rau hauv kev noj qab haus huv. Fluoride tebchaw kuj muaj kev siv tseem ceeb hauv hluavtaws organic chemistry. Lawv kuj feem ntau siv rau hlau alloy thiab rau optical deposition. Nws kuj yog siv los ua ib qho flux rau melting thiab ua kua ntawm hlau, hlau thiab lawv cov khoom sib xyaw. Nws qhov kev txiav txim yog raws li nws cov ntsiab lus zoo sib xws rau cov hlau, ntawm nws lub peev xwm yaj oxides thiab ntawm nws lub peev xwm los ntub oxides thiab hlau. |
| Siv | Fluorspar yog lub hauv paus tseem ceeb ntawm fluorine thiab nws cov Compounds. Nyob rau hauv ferrous metallurgy nws yog siv los ua flux kom lub fluidity ntawm slag. Kev lag luam steel yog cov neeg siv khoom loj tshaj plaws; kev lag luam tshuaj, thib ob thiab iav thiab ceramics, thib peb. Synthetic fluorspar yog siv nyob rau hauv kev lag luam kho qhov muag (hloov uv rays), thiab ntshiab calcium fluoride yog siv los ua catalyst nyob rau hauv lub cev qhuav dej thiab dehydrogenations. Siv rau fluoride cov dej haus. |
| Siv | Calcium fluoride yog cov khoom lag luam tseem ceeb rau cov tshuaj fluoride thiab hydrogen fluoride. Nws yog pob tshab los ntawm ultraviolet mus rau thaj tsam infrared. Nws yog siv nyob rau hauv spectroscopy, thermal imaging systems thiab excimer lasers; Nws kuj tseem siv rau hauv kev tsim cov khoom siv kho qhov muag nrog rau qhov rais, prisms thiab lo ntsiab muag. Tsis tas li ntawd, nws kuj yog siv nyob rau hauv aluminium-metallurgy, nres hauv ob sab phlu manufacturing industries, thiab nyob rau hauv cov hniav enamel. |
| Txhais | Ib daim ntawv dawb huv tshwm sim ntawm calcium fluoride. |
| Txoj kev tsim khoom | Cov khoom lag luam yog tau los ntawm ib txwm muaj cov ntxhia fluorspar, uas yog purified thiab hmoov. Tsis tas li ntawd, nws tuaj yeem raug precipitated los ntawm kev sib tov ntawm sodium fluoride nrog soluble calcium ntsev: Ca (NO3)2+ 2NaF → CaF2+ NOV3 Xwb, nws tuaj yeem tau txais los ntawm kev kho calcium carbonate nrog hydrofluoric acid: CaCO3+ 2HF → CaF2+ CO2 + H2O. |
| Txhais | Ib daim ntawv ntxhia ntawm calcium fluoride (CaF2), siv los ua qee cov cements thiab hom iav. |
| Kev piav qhia dav dav | Tsis hnov tsw grey hmoov los yog granules. Sinks hauv dej. |
| Reactivity Profile | Calcium fluoride tsis muaj zog oxidizing lossis txo lub zog. Txawm li cas los xij, Redox cov tshuaj tiv thaiv tuaj yeem tshwm sim. Feem ntau ntawm cov tebchaw hauv chav kawm no yog me ntsis soluble lossis insoluble hauv dej. Yog tias soluble hauv dej, ces cov kev daws teeb meem feem ntau tsis muaj zog acidic los yog muaj zog heev. Cov tshuaj no tsis yog dej-reactive. |
| Hazard | Ib qho khaus. |
| Health Hazard | Me ntsis mob toxicity |
| Flammability thiab Explosibility | Tsis yog nplaim taws |
| Kev siv tshuab | Kuj hu ua fluorite, fluorspar yog crystalline lossis loj granular ntxhia ntawm cov muaj pes tsawg leeg CaF2, siv los ua cov dej ntws hauv kev ua cov hlau, ua cov hydrofluoric acid, hauv cov iav opalescent, hauv ceramic enamels, rau snaking dag cryolite, raws li ib tug binder rau vitreous abrasive log, thiab nyob rau hauv zus tau tej cov dawb cement. Nws yog qhov zoo dua rau cov hlau ntau dua limestone, ua cov kua dej slag, thiab tso cov hlau ntawm sulfur thiab phosphorus. Acid spar yog qib siv los ua hydrofluoric acid. Nws kuj yog siv los ua cov tub yees, yas, thiab tshuaj lom neeg, thiab rau kev txo qis aluminium. Optical fluorspar yog qib siab tshaj plaws tab sis tsis muaj ntau. Fluoride crystals rau qhov muag lo ntsiab muag yog zus los ntawm acid-qib fluorspar. Ntshiab calcium fluoride, Ca2F6, yog cov hmoov tsis muaj xim crystalline siv rau etching iav, hauv enamels, thiab txo kev sib txhuam hauv tshuab bearings. Nws kuj yog siv rau cov khoom siv ceramic tiv taus hydrofluoric acid thiab feem ntau lwm cov kua qaub. Calcium fluorite muaj silicon nyob rau hauv molecule thiab yog crystalline hmoov siv rau enamels. Cov ntshiab rhombic fluoride crystals siv los hloov lub zog hluav taws xob rau hauv lub teeb yog lead fluoride, PbF2. |
| Kev ruaj ntseg Profile | Muaj tshuaj lom los ntawm txoj kev intraperitoneal. Mob me me los ntawm kev noj. Ib qho kev sim teratogen. Lwm yam kev sim ua kom muaj menyuam. Cov ntaub ntawv hloov pauv tau tshaj tawm. Saib ntxiv FLUORIDES thiab Calcium COMPOUNDS. Thaum rhuab rau decomposition nws emits cov pa phem ntawm F-. |
| Ntxim yuav nphav raug | Calcium fluoride yog siv los tsim cov hydrofluoric acid; raws li ib tug flux nyob rau hauv steel tsim; hauv smelting; hluav taws xob arc vuam, ua iav thiab ceramics; thiab fluoride cov dej haus. |
| Kev pab thawj zaug | Yog hais tias cov tshuaj no nkag mus rau hauv lub qhov muag, tshem ib qho kev sib cuag lo ntsiab muag ib zaug thiab irrigate tam sim ntawd rau yam tsawg kawg yog 15 min, qee zaus lifting sab sauv thiab sab hau.Nrhiav kev kho mob tam sim ntawd. Yog tias cov tshuaj no kis mus rau daim tawv nqaij, tshem tawm cov khaub ncaws tsis huv thiab ntxuav tam sim nrog xab npum thiab dej. Nrhiav kev kho mob tam sim ntawd. Yog tias cov tshuaj no tau nqus tau, tshem tawm ntawm qhov raug, pib ua pa cawm siav (siv kev ceev faj thoob ntiaj teb, suav nrog daim npog qhov ncauj resuscitation) yog ua pa tsis ua haujlwm thiab CPR yog tias lub plawv nres. Hloov tam sim ntawd mus rau qhov chaw kho mob. Thaum cov tshuaj no tau nqos lawm, mus kho mob. Tus kws kho mob tau tso cai tus kws kho mob tuaj yeem txiav txim siab siv tshuaj txhuas hydroxide gel, yog tias nco qab. |
| khaws cia | Xim Code-Green: Kev khaws cia dav dav tuaj yeem siv tau.Sau hauv cov thawv kaw kom nruj hauv qhov chaw txias, qhov cua zoo kom deb ntawm cov kua qaub thiab cov tshuaj lom neeg hlau (xws li aspotassium, sodium, magnesium, thiab zinc) vim corrosivehydrogen fluoride yuav raug tsim. |
| Kev xa khoom | Calcium fluoride tsis yog tshwj xeeb los ntawm DOT hauv nws Cov Qauv Txheej Txheem Kev Ua Haujlwm-Oriented Ntim. |
| Kev tsis sib haum xeeb | Plua plav tuaj yeem tsim tawg sib xyaw nrog huab cua. Reacts nrog dej, huab cua noo, thiab chav, tso cov pa hluav taws xob hydrogen; thiab tej zaum nws tus kheej ignite hauv huab cua. Ib tug muaj zog txo tus neeg sawv cev; tsis sib haum nrog oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, thiab lwm yam); kev sib cuag tej zaum yuav ua rau hluav taws kub los yog tawg. Khaws kom deb ntawm cov ntaub ntawv alkaline, muaj zog hauv paus, muaj zog acids, oxoacids, epoxides. Incompatible nrog hlau halogenates, nyiaj fluoride, thiab tetrahydrofuran |
| Calcium fluoride Kev Npaj Cov Khoom Siv thiab cov khoom siv raw |
| Cov khoom nyoos | Hydrogen fluoride-->Calcium hydroxide-->CARBON MONOXIDE-->Quartz-->Calcium acetate-->calcium magnesium phosphate (CMP) |
| Cov khoom npaj | Hydrogen fluoride-->Boron trifluoride diethyl etherate-->Potassium Phosphate Monobasic-->Hexafluorosilicic acid-->Calcium cyanamide-->Sodium fluoride-->Trisodium hexafluoroaluminate-->Aluminum fluoride-->bastnasite-->Carbon tetrafluoride-->cryolite-->ZINC SILICOFLUORIDE-->MAGNESIUM HEXAFLUOROACETYLACETONATE DIHYDRATE |
Cim npe nrov: Tuam Tshoj zinc fluoride manufacturers, lwm tus neeg, Hoobkas
Tug: Zirconium Fluoride
Tom ntej: Calcium Fluoride
Koj Tseem Yuav Zoo Li
Xa kev nug
