Khoom Taw qhia
| Sodium fluoride Cov ntaub ntawv yooj yim |
| Chemical Properties Solubility hauv dej Siv Daim Ntawv Thov hauv cov tshuaj txhuam hniav Ntau lawm txoj kev Toxicity Hazards & Safety Information |
| Khoom npe: | Sodium fluoride |
| Synonyms: | Alcoa sodium fluoride;Sodium fluoride puriss., meets analytical specification of Ph. Eur., BP, USP, 98.5-100.5% (calc. to the dried substance);Sodium fluoride ReagentPlus(R), >{{0}}%; SODIUM fluoride rau kev tshuaj xyuas EMSURE ACS,ISO,REAG. PH EUR; SODIUM FLUORIDE INSECT CELL CULTURE*; Sodium fluoride, 99.995% trace metals base excluding K; Sodium fluoride, ACS, 99.0% min.; Sodium fluoride, rau kev tsom xam, 99+% |
| CAS: | 7681-49-4 |
| MF: | FNa |
| MW: | 41.99 |
| EINECS: | 231-667-8 |
| Khoom Categories: | Crystal Qib Inorganics; Hlau thiab Ceramic Science; Kev Tshawb Fawb / Chromatography; Cov ntsev; Sodium ntsev; SodiumMetal thiab Ceramic Science; X-Ray Crystallography; Pab rau ISE; Cov Khoom Siv Ion Sensor; Cov Khoom Muag Khoom thiab ReagentsSynthetic Reagents; Kab Platform; Serum-free Media; Hlau halide; Fluoride; ACS QibSynthetic Reagents; Cov Khoom Siv Tseem Ceeb; Pharmacopoeia (USP); Pharmacopoeia A-ZPharmacopoeia (USP); Pharmacopoeial Inorganics; Synthetic Reagents; Cov Khoom Siv Cytochemistry; Hematology thiab Histagents; Kev kho kom zoo; Standard SolutionsAlphabetic; Daim ntawv thov CRMs; F; FA - FL; Ion Chromatography; Ion Chromatography Standards; Inorganic Chemicals; Inorganic; Optimization Reagents; Protein Structural Analysis; Inorganic Salts; Routine Reagents; API; 7681-49-4 |
| Mol File: | 7681-49-4.mol |
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| Sodium fluoride Chemical Properties |
| Melting point | 993 degree (lit.) |
| Boiling point | 1700 degree |
| ceev | 1.02 g / ml ntawm 20 degree |
| vapor siab | 1.4 hli Hg ({2}} degree) |
| Refractive Index | 1.336 |
| Fp | 1704 degree |
| cia temp. | 2-8 degree |
| solubility | H2O: 0.5 M ntawm 20 degree, ntshiab, tsis muaj xim |
| daim ntawv | hmoov |
| xim | Dawb mus rau dawb |
| Specific Gravity | 2.558 |
| PH | 7. 0-10 0 (25 degree, 0.5M hauv H2O) |
| tsw | Tsis hnov tsw |
| Dej Solubility | 4 g / 100 mL (25 ºC) yog ' |
| rhiab heev | Hygroscopic |
| Merck | 14,8618 |
| Kev txwv tsis pub dhau | ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
| Kev ruaj ntseg: | ruaj khov. Hydrolyzed los ntawm dej. Reacts nrog cov ntxhia acids los tsim cov tshuaj lom hydrogen fluoride. Incompatible nrog iav. |
| CAS DataBase Reference | 7681-49-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium fluoride (7681-49-4) |
| EPA Tshuaj Registry System | Sodium fluoride (7681-49-4) |
| Cov ntaub ntawv kev nyab xeeb |
| Hazard Codes | T, Xn |
| Risk Statements | 25-32-36/38-22 |
| Cov lus hais txog kev nyab xeeb | 23-24/25-45-36-22 |
| OEB | B |
| OEL | TWA: 2.5 mg/m3 [*Ceeb Toom: REL kuj siv rau lwm yam inorganic, khoom fluorides (raws li F).] |
| RIDADR | UN 1690 6.1/PG 3 |
| WGK Germany | 1 |
| RTECS | wb 0350000 |
| F | 10 |
| Ceeb toom | Toxic / Hygroscopic |
| TSCA | Yog lawm |
| HS Code | 2826 19 10 |
| HazardClass | 6.1 |
| PackingGroup | III |
| Cov Ntaub Ntawv Muaj Xwm Ceev | 7681-49-4(Cov ntaub ntawv muaj phom sij) |
| Toxicity | LD50 qhov ncauj hauv nas: 0.18 g/kg (Smyth) |
| MSDS Cov Ntaub Ntawv |
| Tus kws kho mob | Lus |
|---|---|
| SigmaAldrich | Lus Askiv |
| ACROS | Lus Askiv |
| ALFA | Lus Askiv |
| Kev Siv Sodium fluoride thiab Synthesis |
| Chemical Properties | Nws yog cov xim tsis muaj xim lossis ci hmoov dawb, belongs rau tetragonal system, zoo hexahedral lossis octahedral crystals. Nws yog me ntsis soluble hauv cawv, soluble hauv dej. Aqueous kua yog acidic. Nws dissolves nyob rau hauv hydrofluoric acid los tsim sodium hydrogen fluoride. |
| Solubility hauv dej | Dissolved npaum li cas ib 100 ml dej ntawm qhov sib txawv kub (degree) hauv grams: 3.66g / 0 degree; 4.06g / 20 degree; 4.22g / 30 degree; 4.4g / 40 degree 4.68g / 60 degree; 4.89g / 80 degree; 5.08g / 100 degree |
| Siv | 1. Sodium fluoride feem ntau yog siv los ua Inlaid steel rau txhua yam hniav thiab planer los txhim kho lub zog vuam. Thib ob, nws yog siv los ua cov tshuaj tua kab mob, cov tshuaj tua kab mob hauv kev lag luam brewing, tshuaj tua kab ua liaj ua teb (yuav tsum muaj kab mob xiav), tshuaj tua kab mob, vuam flux, fluorine tus neeg sawv cev rau cov dej haus. Kuj tseem siv los tsim lwm cov tshuaj fluoride thiab casein kua nplaum, tshuaj txhuam hniav sodium fluoride, ua cov nplaum, kuj siv hauv cov ntawv thiab metallurgical industries. Hauv kev tsim cov tshuaj fluorine, nws yog siv los tshem tawm cov kab mob hydrogen fluoride. Tsis tas li ntawd, nws kuj yog siv rau hauv enamels thiab kev lag luam tshuaj. 2. Sodium fluoride yog siv los ua tshuaj tua kab mob, tshuaj tua kab mob, tshuaj tua kab, kuj siv rau hauv enamel, ntoo preservation, tshuaj, metallurgy, manufacturing fluorides thiab lwm yam. 3. Siv rau kev txiav txim siab ntawm scandium hauv microanalysis, kev txiav txim siab ntawm phosphorus nyob rau hauv photoelectric colorimetric tsom xam, siv los ua reagent, lub npog ntsej muag, cov tshuaj tiv thaiv ntawm cov hlau thiab hlau. 4. Ua zaub mov noj. Raws li Suav txoj cai rau ntsev, qhov siab tshaj plaws siv yog 0.1g/kg. 5. Nws yog siv los ua ntoo preservatives, tshuaj preservative, vuam flux thiab siv nyob rau hauv daim ntawv kev lag luam, lub tuam txhab cov khoom no yog cov tshuaj txhuam hniav tshwj xeeb, kuj siv tau raws li purifying tus neeg saib xyuas rau cov dej haus, thiab siv rau hides thiab daim tawv nqaij ua nyob rau hauv tanning kev lag luam, rau smelting thiab refining ntawm lub teeb hlau, thiab tiv thaiv txheej ntawm lub teeb hlau, rau nplaum corrosion, thiab raug boiling hlau. 6. Sodium fluoride yog siv los ua Phosphate accelerator hauv kev lag luam txheej, ua rau phosphating tov stability, phosphate refinement, txhim kho kev ua haujlwm ntawm phosphate txheej. Aluminium thiab nws cov alloys phosphate tuaj yeem kaw qhov tsis zoo catalytic Al3 + ntawm kev phom sij loj, thiab ua kom phosphating smoothly. Nws yog siv los ua ntoo preservatives, tshuaj tua kab ua liaj ua teb, fungicides hauv kev lag luam brewing, tshuaj preservative, vuam flux, alkaline zincate zinc additives thiab enamel, ntawv thiab lwm yam. |
| Kev siv tshuaj txhuam hniav | Sodium fluoride tau ntxiv rau cov tshuaj txhuam hniav uas tuaj yeem tiv thaiv cov hniav kab mob, txij li cov enamel cuam tshuam nrog cov tshuaj fluoride los ua fluorapatite rau ntawm cov enamel, uas txhim kho cov tawv tawv thiab cov kua qaub ntawm cov enamel, thiab txo qhov tsim cov quav hniav, txo qhov tshwm sim ntawm cov hniav caries. Cov tshuaj txhuam hniav fluoride muaj qee cov tshuaj tiv thaiv kab mob. Thaum ntxov li nruab nrab -19 xyoo pua, cov poj niam cev xeeb tub tau noj calcium fluoride hauv qhov ncauj los tiv thaiv kab mob hauv Tebchaws Europe. Nyob rau hauv lub xyoo pua 20th, fluoride tau lees paub thoob ntiaj teb tias yog ib qho tshuaj tiv thaiv kab mob zoo. Feem ntau hauv cov tshuaj txhuam hniav fluoride, cov ntsiab lus ntawm sodium fluoride yog 0.22-0.33%, cov ntsiab lus ntawm sodium monofluorophosphate yog 0.76%. Txawm hais tias me me, nws muaj kev tiv thaiv zoo rau tib neeg cov hniav, tuaj yeem txo cov caries feem ntau ntawm 28%. Raws li cov ntsiab lus sib txawv ntawm cov tshuaj fluoride hauv cov tshuaj txhuam hniav, cov tshuaj txhuam hniav fluoride tau muab faib ua pawg hauv qab no: tshuaj txhuam hniav sodium fluoride, tshuaj txhuam hniav monofluorophosphate, tshuaj txhuam hniav stannous fluoride, tshuaj txhuam hniav amine fluoride thiab lwm yam. Tam sim no cov tshuaj txhuam hniav uas muaj fluoride tshaj plaws nyob rau hauv kev ua lag luam yog cov tshuaj txhuam hniav sodium fluoride thiab monofluorophosphate dentifrice, los yog cov tshuaj txhuam hniav fluorine uas muaj ob qho tib si sodium fluoride thiab sodium monofluorophosphate. Cov tshuaj txhuam hniav sib txawv ntawm cov tshuaj fluoride, thiab seb cov tshuaj txhuam hniav puas muaj cov tshuaj fluorine ib leeg lossis ob chav fluorides, lawv cov teebmeem ntawm kev tiv thaiv kab mob yog tib yam. |
| Txoj kev tsim khoom | Melt immersion txoj kev Calcine cov fluorite, quartz xuab zeb thiab dej qab zib tshauv ntawm qhov kub thiab txias (800 ~ 900 degree), ua raws li dej leaching, thiab tom qab ntawd los ntawm evaporation, crystallization, ziab los npaj cov khoom. CaF2 + Na2CO3 + SiO2 → 2NaF + CaSi03 + C02 ↑ Neutralizational txheej txheem Nws yog muab los ntawm neutralization ntawm soda tshauv los yog caustic soda nrog hydrofluoric acid, 2HF + Na2CO3 → 2NaF + H2O + CO2 ↑ Dissolve dej qab zib nyob rau hauv lub lauj kaub cawv, thiab tom qab ntawd ntxiv 30% hydrofluoric acid rau neutralize rau pH nqi ntawm 8-9, kom txog rau thaum CO2 roj evolution, hydrofluoric acid feem ntau muaj fluosilicate impurities, thiab tom qab neutralization los tsim sodium fluosilicate, cua sov rau 1h. ntawm 90 ~ 95 degree, sodium fluorosilicate decomposes: Na2SiF6 + 2Na2CO3 → 6NaF + SiO2 + 2C02 ↑ Thiab thaum lub sij hawm tus txheej txheem ntawm neutralization, tus nqi pH tsis tsawg tshaj li 8, txwv tsis pub sodium fluoride yog ib qho nyuaj rau decompose los ntawm lub hauv paus, thiab neutralization tov yog tso cai rau sawv ntsug rau 1h, cov ntshav yog txias thiab concentrated rau precipitate sodium fluoride crystals thiab ces sib cais los ntawm centrifugation. , ziab, crushing kom tau cov khoom. Txoj kev Sodium fluorosilicate Raws li cov khoom siv los ntawm cov txheej txheem ntub dej ntawm phosphoric acid thiab phosphate fertilizer, fluosilicic acid tuaj yeem npaj 99.87% sodium fluoride los ntawm cov txheej txheem ib txwm ua. Cov tshuaj tiv thaiv kav 160~180min ntawm 84 ~ 95 degree thiab 0.15MPa tej yam kev mob, nrog rau ntau tshaj 5% mus rau 8% alkaline tov (pH nqi 8-9) los npaj sodium fluoride. Na2SiF6 + 2Na2Co3 → 6NaF + SiO2 + 2C02 ↑ Tom qab sawv thiab qhia meej ntawm kev daws teeb meem, lub supernatant tau concentrated los ntawm evaporation, txias crystallization, tom qab sib cais, ntxuav nrog dej kub ntawm 50 ~ 60 degree, indirectly qhuav kom tau cov khoom. |
| Toxicity | Sodium fluoride yog ib qho mob toxicant. Kev noj ntau ntau (5 mus rau 10g) tuaj yeem ua rau tib neeg tuag. Cov khoom me me tuaj yeem ua rau xeev siab, ntuav, raws plab, stupor, thiab qaug zog. Lwm cov tsos mob yog tshee, nqaij tsis muaj zog, thiab dyspnea. Mottling ntawm cov hniav tuaj yeem tshwm sim los ntawm kev raug mob ntev. |
| Cov Ntaub Ntawv Kev Nyab Xeeb & Kev Nyab Xeeb | Qeb:Tshuaj tua kab Toxicity grading:Muaj tshuaj lom heev Mob toxicity Oral-rat LD50: 52 mg/kg; Qhov ncauj-Mouse LD50: c57 mg/kg Cov ntaub ntawv txhawb nqa Qhov muag-liab 20 mg / 24 teev nruab nrab Flammability txaus ntshai yam ntxwv:Nws yog non-combustible. Nyob rau hauv cov ntaub ntawv ntawm cov kua qaub, nws tso tawm cov pa roj hydrogen fluoride, cua sov yuav tsim cov pa phem fluoride thiab sodium oxide. Cia yam ntxwv:Nyiaj txiag qhov cua qhov cua kub kom qhuav, muab cais los ntawm oxidants, zaub mov additives. Cov qauv kev ua haujlwm:TLV-TWA 2.5 mg (fluorine) / cubic meter, STEL 5 mg (fluorine) / cubic meter |
| Kev piav qhia | Sodium fluoride, NaF, yog binary ntsev uas yog ib qho ntshiab, ci ntsa iab crystal lossis hmoov dawb. Cov tshuaj tua kab yog feem ntau dyed xiav. Nws yog soluble hauv dej thiab muaj lub ntiajteb txawj nqus ntawm 2.558, uas hnyav dua li dej. Sodium fluoride yog tshuaj lom heev los ntawm kev noj thiab nqus tau pa, thiab tseem ua rau khaus heev rau cov ntaub so ntswg. TLV yog 2.5 mg / m3 ntawm huab cua. Plaub tus lej UN tus lej yog 1690. Kev siv thawj zaug yog fluoridation ntawm cov dej hauv nroog ntawm 1 ppm, ua tshuaj tua kab, tshuaj tua kab, thiab tshuaj tua kab mob, thiab tshuaj txhuam hniav thiab tshuaj tua kab mob. |
| Chemical Properties | Dawb los yog yuav luag dawb hmoov los yog tsis muaj xim muaju. |
| Chemical Properties | Sodium fluoride yog cov hmoov dawb los yog muaj xim tsis muaj xim. Feem ntau siv rau hauv kev daws teeb meem. Tsis hnov tsw. Cov tshuaj tua kab feem ntau yog xim xiav. |
| Lub cev muaj zog | Tsis muaj xim cubic lossis tetragonal crystals; Qhov ceev 2.78 g / cm33; melts ntawm 993 degree; vaporizes ntawm 1,695 degree; me ntsis soluble hauv dej 4.22 g / 100mL ntawm 18 degree; soluble hauv hydrofluoric acid; insoluble hauv ethanol. |
| Siv | Sodium fluoride, tsim los ntawm cov tshuaj tiv thaiv ntawm sodium carbonate thiab hydrofluoric acid, thiab ces evaporating. Siv (1) ua tshuaj tua kab mob thiab tshuaj tua kab mob hauv cov dej cawv distilleries, (2) ua khoom noj khoom haus, (3) ua tshuaj lom rau nas thiab roaches, (4) ua cov khoom siv ntawm ceramic enamels thiab fluxes; sodium hydrogen fluoride, sodium difluoride, sodium acid fluoride, NaHF2, dawb khoom, soluble, tsim los ntawm cov tshuaj tiv thaiv ntawm sodium carbonate thiab tshaj hydrofluoric acid, thiab ces evaporating. Siv (1) ua tshuaj tua kab mob, (2) rau etching iav, (3) ua zaub mov preservative, (4) khaws cia zoological specimens. |
| Siv | Sodium fluoride (NaF), nyob rau hauv qhov concentration ntawm ib ppm, ntxiv rau cov dej haus hauv nroog los pab txo cov hniav lwj. Nws kuj yog siv los ua tshuaj tua kab, fungicide, thiab tshuaj tua kab mob, nrog rau kev tsim cov nplaum, tshuaj tua kab mob, thiab cov khoom siv kho hniav. |
| Siv | Raws li tshuaj tua kab, tshwj xeeb tshaj yog rau kab laum thiab ntsaum; hauv lwm cov tshuaj tua kab; cov ntsiab lus ntawm vitreous enamel thiab iav sib xyaw; raws li tus neeg sawv cev steel degassing; hauv electroplating; nyob rau hauv fluxes; nyob rau hauv tshav kub-kho ntsev compositions; nyob rau hauv fluoridation ntawm cov dej haus; rau disinfecting fermentation apparatus nyob rau hauv breweries thiab distilleries; khaws cia ntoo, pastes thiab mucilage; tsim cov ntawv coated; iav frosting; hauv kev tshem tawm HF los ntawm cov pa pa kom txo tau cov pa phem. Kev kho hniav caries prophylactic. |
| Txhais | ChEBI: Ib qho hlau fluoride ntsev nrog Na(+) counterion. |
| Kev npaj | Sodium fluoride yog npaj los ntawm kev ntxiv sodium hydroxide los yog sodium carbonate rau 40% tov ntawm hydrofluoric acid. Nyob rau hauv ntau tshaj hydrofluoric acid, sodium bifluoride, NaHF2, yog tsim. NaF kuj yog tsim los ntawm fusion ntawm cryolite nrog caustic soda. Cov khoom siv qib siab feem ntau yog muag ntawm 90 txog 95% purity. |
| Hom lub npe | Fluorinse (Qhov ncauj-B); Minute-Gel (Qhov ncauj-B); Neutra Care (Qhov ncauj-B); Pediaflor (Ross). |
| Kev piav qhia dav dav | Sodium fluoride yog cov xim tsis muaj kob crystalline khoom lossis hmoov dawb, lossis cov khoom yaj hauv cov kua. Sodium fluoride yog tsim los ntawm cov tshuaj tiv thaiv ntawm sodium carbonate thiab hydrofluoric acid. Sodium fluoride yog soluble hauv dej. Sodium fluoride yog noncombustible. Sodium fluoride yog corrosive rau txhuas. Sodium fluoride yog siv los ua tshuaj tua kab. Sodium fluoride kuj tseem siv los ua cov khoom siv dej fluorinate, ua cov khoom siv ntoo, hauv kev tu vaj tse, tsim cov iav, thiab ntau yam kev siv. |
| Hazard | Toxic los ntawm kev noj thiab nqus pa, muaj zog irritant rau cov ntaub so ntswg. |
| Health Hazard | Kev noj haus yuav ua rau ntuav, mob plab, raws plab, convulsions, vau, nqhis dej, tsis pom kev xim, mob nephritis mob. |
| Health Hazard | Qhov mob toxicity ntawm fluorides feem ntau yog nruab nrab. High exposure tej zaum yuav ua rau khaus ntawm lub qhov muag thiab ua pa ib ntsuj av. Kev noj cov tshuaj fluoride tuaj yeem ua rau qab ntsev los yog xab npum saj, ntuav, mob plab, raws plab, ua tsis taus pa, nyuaj hais lus, nqhis dej, tsis muaj zog mem tes, tsis pom kev xim, cov leeg tsis muaj zog, convulsions, tsis nco qab, thiab tuag. Hauv tib neeg, qhov kwv yees ntawm kev ua kom tuag ntawm NaF los ntawm kev noj yog 5 g. Kev nqus cov tshuaj fluoride rov qab tuaj yeem ua rau cov pob txha ntau dhau thiab calcification ntawm ligaments ntawm tav, pelvis, thiab qaum. Kev sib cuag ntawm daim tawv nqaij rov qab tuaj yeem ua rau pob khaus Fluorides tsis tau pom tias yog carcinogenic lossis ua rau muaj menyuam yaus lossis kev loj hlob toxicity hauv tib neeg. |
| Hluav Taws Xob | Fluorides tsis yog combustible. |
| Hluav Taws Xob | Tsis-combustible, tshuaj nws tus kheej tsis hlawv tab sis yuav decompose raws li cua sov los tsim corrosive thiab/los yog tshuaj lom pa taws. Ib txhia yog oxidizers thiab tej zaum yuav ignite combustibles (ntoo, ntawv, roj, khaub ncaws, thiab lwm yam). Kev sib cuag nrog cov hlau tuaj yeem hloov pauv cov pa hluav taws xob hydrogen. Cov thawv ntim khoom tuaj yeem tawg thaum cua sov. |
| Flammability thiab Explosibility | Fluorides tsis yog combustible. |
| Kev siv tshuab | Sodium fluoride yog cov hmoov dawb mus rau yellowish, tsis zoo soluble hauv dej. NaF solubility hauv dej yog 3.85% ntawm 15 degree thiab 4.21% ntawm 25 degree. Kev lag luam, NaF yog tau los ntawm reacting hydrofluoric acid nrog sodium hydroxide. Cov tshuaj tiv thaiv no yog ib yam khoom los ntawm kev tsim cov superphosphates los ntawm fluoro-apatite. Sodium fluoride yog ib qho tseem ceeb depressant siv tshwj xeeb tshaj yog thaum muaj txiaj ntsig ntawm cov zaub mov uas tsis yog sulfide, nrog rau cov zaub mov tsis tshua muaj hauv ntiaj teb raws li kev nyuaj siab ib leeg lossis ua ke nrog lwm yam kev nyuaj siab. Nws yog siv ua ke nrog cov hmoov txhuv nplej siab ua co-depressant rau rutile thiab ilmenite thaum lub sij hawm zirconium-titanium sib cais los yog thaum lub sij hawm rov qab silicate flotation los ntawm rutile thiab ilmenite nrog cationic collectors. Txawm hais tias nws ntseeg tias Na2F yog silicate depressant, cov kev tshawb fawb tau pom tias nws tsis depressing silicate minerals. Qhov tseeb, nws txhim kho kev nyuaj siab ntawm oxides thiab silicates thaum siv nrog lwm yam kev nyuaj siab. |
| Biochem/physiol Actions | Sodium fluoride (NaF) tiv thaiv kab mob hniav, los ntawm catalysing diffusion ntawm calcium thiab phosphate thiab remineralizes qhov txhab. Fluoride cuam tshuam rau cov spermatogenesis thiab cov txheej txheem capacitation hauv cov poj niam cev xeeb tub. Fluoride induces oxidative kev nyuaj siab, DNA puas nyob rau hauv zes qe menyuam thaum kawg cuam tshuam rau txoj kev loj hlob ntawm oocytes. Fluoride supplementation txhim kho pob txha pob txha pob txha. 18F-NaF yog lub xov tooj cua siv hauv positron emission tomography (PET) txhawm rau txheeb xyuas cov kab mob atherosclerotic thiab lwm yam kab mob plawv. |
| Kev siv tshuaj kho mob | Sodium fluoride (NaF) txhawb nqa kev loj hlob thiab kev ua haujlwm ntawm osteoblasts thiab raug cais raws li tus neeg sawv cev tsis yog cov pob txha tsim. Vim tias kev kho mob nrog NaF ua rau cov pob txha tsim, nws yog ib qho tseem ceeb uas qhov kev kho no yuav tsum tau ua nrog rau qhov ncauj calcium ntxiv (1,000 mg / hnub). Tsis tas li ntawd, NaF nthuav tawm cov kev ua haujlwm nruab nrab ntawm cov tshuaj tiv thaiv, vim tias nws inhibits kev ua haujlwm osteoclastic thaum nws nqus mus rau hauv cov pob txha matrix. Hauv kev kho mob pob txha, lub qhov rais kho rau tus neeg sawv cev no yog nqaim: Cov koob tshuaj tsawg dua 45 mg / hnub yog subtherapeutic, thiab koob tshuaj ntau dua 75 mg / hnub cuam tshuam cov pob txha mineralization. Tsis tas li ntawd, cov pob txha uas tsim nyob rau hauv lub xub ntiag ntawm NaF yog tsis zoo li mineralized los yog muaj zog li ib txwm pob txha ntaub so ntswg. Qhov tseeb, ib txhia |
| Kev ruaj ntseg Profile | Tib neeg tshuaj lom los ntawm kev noj. Kev sim tshuaj lom los ntawm kev noj, kev sib cuag ntawm daim tawv nqaij, intravenous, intraperitoneal, subcutaneous, thiab intramuscular txoj kev. Tib neeg cov teebmeem: kev hloov hauv cov hniav thiab kev txhawb nqa, cyanosis, raws plab, EKG hloov pauv, haus dej haus, mob taub hau, hypermotihty, nce kev tiv thaiv kab mob, cov leeg tsis muaj zog, musculo-skeletal hloov, xeev siab lossis ntuav, paresthesia, ptosis (dooping ntawm daim tawv muag los ntawm sympathetic innervation), ua pa nyuaj siab, caj pas salivary hloov, tremors. Kev sim teratogenic thiab kev ua me nyuam. Human mutation data qhia. Ib qho corrosive irritant rau ntawm daim tawv nqaij, qhov muag, thiab mucous daim nyias nyias. Cov lus nug carcinogen nrog cov ntaub ntawv kuaj mob qog noj ntshav. Nws yog phytotoxic heev. Thaum rhuab mus rau decomposition nws emits tshuaj lom fumes ntawm Fand NazO. Siv nyob rau hauv tshuaj ntxuav, rau fluoridation ntawm cov dej haus, raws li ib tug funglcide thiab insecticide. Saib ntxiv FLUORIDES |
| Ntxim yuav nphav raug | Siv dav hauv kev lag luam chemical; hauv kev kho dej thiab fluoridation ntawm cov dej haus; raws li tshuaj tua kab, fungicide, thiab tshuaj tua kab mob; tshuaj ntxuav tes; electroplating, iav tsim; vitreous enamels; preservative rau adhesives; tshuaj txhuam hniav, tshuaj tua kab mob, kho hniav prophylaxis; kuj tau siv qhov ncauj hauv kev kho mob ntawm ntau yam pob txha kab mob kom cov pob txha ceev thiab txo cov pob txha mob. |
| Kev xa khoom | UN1690 Sodium fluoride, Chav Kawm Hazard: 6.1; Cov ntawv lo: 6.1-Cov khoom muaj kuab lom. |
| Txoj Kev Purification | Crystallize NaF los ntawm dej los ntawm ib nrab evaporation nyob rau hauv lub tshuab nqus tsev desiccator, los yog dissolve nws nyob rau hauv dej, thiab precipitate ca ib nrab ntawm nws los ntawm kev ntxiv EtOH. Lub precipitate yog qhuav nyob rau hauv ib tug cua qhov cub ntawm 130o rau ib hnub, thiab ces muab cia rau hauv ib tug desiccator tshaj KOH. Nws solubility hauv H2O yog 4% ntawm 15o thiab 4.3% ntawm 25o. [Kwasnik hauv Phau Ntawv Qhia Txog Kev Npaj Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 235 1963]. |
| Kev tsis sib haum xeeb | Kev sib cuag nrog cov kua qaub tso tawm cov pa phem. 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. |
| Pov tseg pov tseg | Raws li 40CFR165, ua raws li cov lus pom zoo rau kev pov tseg cov tshuaj tua kab thiab cov ntim tshuaj tua kab. Yuav tsum muab pov tseg kom zoo los ntawm kev ua raws li cov lus qhia ntawm pob ntawv lossis los ntawm kev tiv tauj koj lub chaw lis haujlwm hauv cheeb tsam lossis tsoomfwv ib puag ncig, lossis tiv tauj koj lub chaw haujlwm EPA hauv cheeb tsam. |
| Sodium fluoride Kev Npaj Cov Khoom Siv Thiab Cov Khoom Raw |
| Cov khoom nyoos | Sodium hydroxide-->Sodium carbonate-->Hydrogen fluoride-->CARBON MONOXIDE-->Hexafluorosilicic acid-->Sodium fluorosilicate-->Calcium fluoride-->Fumed Silica-->phosphoric acid by wet process-->PHOS ROCK FERTILIZER IN BULK |
| Cov khoom npaj | Sodium fluorosilicate-->3-Amino-2-fluoropyridine-->2-Fluoro-3-nitropyridine-->Sodium Monofluorophosphate-->Dregs remover |
Cim npe nrov: Tuam Tshoj sodium fluoride manufacturers, lwm tus neeg, Hoobkas
Tug: Sodium Bromide
Tom ntej: Tetrachloropropene
Koj Tseem Yuav Zoo Li
Xa kev nug
