Khoom Taw qhia
Sodium fluorosilicate Cov ntaub ntawv yooj yim |
| Daim Ntawv Qhia Txog Cov qauv zoo Lub luag hauj lwm thiab lub hom phiaj Toxicity Chemical Properties Qhuav hom Qeb Toxicity grading Acute toxicity Cov ntaub ntawv irritation Flammability thiab cov yam ntxwv muaj kev phom sij Cia cov yam ntxwv Hluav taws tua hluav taws Cov kws tshaj lij cov qauv |
| Khoom npe: | Sodium fluorosilicate iav |
| Synonyms: | ens-zemweevilbait; ent1,501; fluosilicatedesodium; Natriumhexafluorsilikat; Sodium fluorosilicate; Sodium fluosilicide; Silicate ({3}}), hexafluoro-, sodium (1: 2); SODIUM SILICOFLUORIDE, REAGENTSOIDOFREIDE, REAGENTSODIUM SILICOFLUORIDE, REAGENT |
| CAS: | 16893-85-9 |
| MF: | F6Na2Si |
| MW: | 188.06 |
| EINECS: | 240-934-8 |
| Khoom Categories: | Analytical Reagents rau Kev Siv; Puriss pa; Hlau thiab Ceramic Science; ntsev; Sodium ntsev; QS, Puriss pa; Inorganic Chemicals; Inorganic; halometallate ntsev; Inorganic Chemicals; catalyst rau polypropylene synthesis; Preservative; Dye |
| Mol File: | 16893-85-9.mol |
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| Sodium fluorosilicate Chemical Properties |
| Melting point | melts ntawm liab kub, decomposing [MER06] |
| Boiling point | 620 degree [ntawm 101 325 Pa] |
| ceev | 2.68 g / mL ntawm 25 degree (lit.) |
| vapor siab | 0.01Pa |
| Refractive Index | 1.310 |
| solubility | insoluble hauv ethanol |
| daim ntawv | Crystals |
| Specific Gravity | 2.68 |
| xim | Dawb |
| tsw | tsw tsw |
| Dej Solubility | Me ntsis soluble hauv dej. Solubility nce nrog kub. Insoluble hauv cawv Me ntsis soluble hauv dej. Insoluble hauv cawv. |
| Merck | 14,8624 |
| 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. Incompatible nrog oxidizing neeg sawv cev, dej. Moisture rhiab heev. |
| LogP | 0.001 |
| CAS DataBase Reference | 16893-85-9(CAS DataBase Reference) |
| EPA Tshuaj Registry System | Sodium Fluosilicate ({0}}) |
| Cov ntaub ntawv kev nyab xeeb |
| Hazard Codes | T, Xis |
| Risk Statements | 23/24/25 |
| Cov lus hais txog kev nyab xeeb | 26-45 |
| RIDADR | UN 2674 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | wb 8410000 |
| Ceeb toom | Irritant |
| TSCA | Yog lawm |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 2826908090 |
| Cov Ntaub Ntawv Muaj Xwm Ceev | 16893-85-9(Cov ntaub ntawv muaj phom sij) |
| Toxicity | LD hauv luav (mg F / kg): 76 intragastric; hauv nas (mg F / kg): 42 sc (Muehlberger); LD hauv guinea npua (mg / kg): 250 qhov ncauj, 500 sc (Waldbott) |
| MSDS Cov Ntaub Ntawv |
| Tus kws kho mob | Lus |
|---|---|
| SigmaAldrich | Lus Askiv |
| ALFA | Lus Askiv |
| Kev siv Sodium fluorosilicate Thiab Synthesis |
| Cov ntsiab lus | Sodium fluorosilicate tshwm li dawb siv lead ua, crystalline hmoov los yog tsis muaj xim hexagonal crystals. Nws yog odorless thiab tasteless. Nws tus txheeb ze ceev yog 2.68; nws muaj peev xwm nqus dej noo. Nws tuaj yeem yaj hauv cov kuab tshuaj xws li ethyl ether tab sis insoluble hauv cawv. Solubility nyob rau hauv acid yog ntau dua li nyob rau hauv dej. Nws tuaj yeem decomposed hauv alkaline tov, tsim sodium fluoride thiab silica. Tom qab searing (300 degree), nws yog decomposed rau hauv sodium fluoride thiab silicon tetrafluoride. Nws yog tshuaj lom! Hauv 25 degrees, sodium fluorosilicate muaj nws cov dej solubility yog 0.78%. Raws li kev tsim khoom, kev ntxiv ntawm sodium sulfate lossis sodium chloride ntau dhau tuaj yeem ua rau muaj kev nce ntxiv ntawm sodium ions hauv lub cev, yog li ua kom cov khoom solubility ntawm fluorine silicate thiab sodium ions, kom sodium fluoride tuaj yeem ua tiav los nag ntau dua. Sodium fluorosilicate yog cov khoom siv los ntawm kev tsim cov calcium phosphate los yog tsim cov fluoride ntsev hauv aluminium Hoobkas. Nws feem ntau tshwm sim raws li cov hmoov dawb crystalline uas tsis tshua muaj solubility hauv dej (ua 1% lossis tsawg dua ntawm chav sov), thiab cov dej solubility nce me ntsis nrog qhov kub thiab txias. Cov tshuaj aqueous ntawm sodium fluorosilicate yog acidic (pH3). Qhov no yog vim tias nws cov khoom siv hydrolysis muaj hydrofluoric acid. Kev txo qis ntawm acidicity ntawm cov tshuaj pab txhawb cov hydrolysis ntawm sodium fluorosilicate. Thaum pH qis dua 3.5-3.55, cov tshuaj tiv thaiv hydrolysis yog ruaj khov. Thaum cov pH sib npaug rau 4, qhov tshuaj tiv thaiv hydrolysis yog qhov tseem ceeb. Thaum tus nqi pH sib npaug rau 8-8.5, sodium fluorosilicate tuaj yeem ua tiav hydrolyzed kom pom zoo li silica gel thiab precipitated tawm. Yog li ntawd, thaum sodium fluorosilicate ntxiv rau lub khob dej, ntxiv rau cov nyhuv hardening ntawm nag lossis daus ntawm silicon dioxide gel tshwm sim los ntawm neutralization ntawm sodium hydroxide nyob rau hauv cov kua dej iav, sodium fluorosilicate nws tus kheej kuj yog ib qhov chaw ntawm silica gel. |
| Siv cov qauv zoo | 105 degree Poob qhov hnyav thaum ziab% 0.17% Sodium fluorosilicate (raws li qhuav huab cua) 99.50 Dawb acid (xws li HCL) 0.0075 Dej insoluble teeb meem 0.12% Cov hlau hnyav (Pb) cov ntsiab lus%<0.02 % Fineness (los ntawm 250um sieve) 98.00 Qhov tsos dawb hmoov |
| Lub luag haujlwm thiab lub hom phiaj | Sodium fluorosilicate tuaj yeem siv los ua cov tshuaj tua kab hauv kev ua liaj ua teb, tus neeg saib xyuas mis nyuj ntawm enamel, tus neeg sawv cev tsim khoom ntawm opal iav, ntoo preservatives thiab cov khoom siv raw rau kev tsim khoom ntawm lwm yam fluoride thiab siv rau smelting ntawm beryllium thiab aluminium thiab kws tshuaj, tawv thiab roj hmab kev lag luam. Hauv cov khoom siv refractory, nws tuaj yeem siv los ua cov coagulant raws li cov iav dej khi tus neeg sawv cev. Txij li thaum sodium fluorosilicate muaj cov dej solubility tsawg, nws cov tshuaj tiv thaiv nrog cov iav dej yog qeeb thiab maj mam. Qhov no tsis tuaj yeem txhawb txoj kev tsim kho tab sis kuj muaj qhov ntom ntom ntom thiab lub zog ntawm cov khoom kho tau zoo. Nws yog feem ntau siv nyob rau hauv cov khoom inorganic khi nrog lub khob dej. Cov ntaub ntawv no yog kho los ntawm Xiongfeng Dai los ntawm Chemicalbook. |
| Toxicity | Cov khoom no yog tshuaj lom nrog cov nyhuv stimulation ntawm lub ntsws. Cov neeg ua txhaum ntawm qhov ncauj lom yuav tau txais cov tsos mob hnyav ntawm kev puas tsuaj rau lub plab zom mov nrog cov koob tshuaj tuag yog 0.4 ~ 4g. Thaum lub sijhawm ua haujlwm ntawm tus neeg teb xov tooj, lawv yuav tsum hnav cov cuab yeej tiv thaiv tsim nyog kom tsis txhob muaj tshuaj lom. Cov khoom siv ntau lawm yuav tsum raug kaw thiab lub rooj cob qhia yuav tsum muaj qhov cua zoo. |
| Chemical Properties | Nws zoo nkaus li tsis muaj xim hexagonal crystals. Nws yog odorless thiab tasteless. Nws muaj hygroscopicity. Nws tuaj yeem yaj hauv cov kuab tshuaj xws li ethyl ether tab sis insoluble hauv cawv nrog nws cov solubility hauv acid yog ntau dua hauv dej. |
| Txoj kev tsim khoom | Calcium superphosphate byproduct method: siv sulfuric acid thiab av phosphate pob zeb rau zus tau tej cov superphosphate los yog fluorine-muaj cov pa khib nyiab thaum lub sij hawm rho tawm cov phosphate nrog dej absorbing silicon tetrafluoride los ua fluorosilicate. Thaum lub concentration ntawm cov tshuaj fluorine acid nce mus txog 8% mus rau 10%, sawv zoo li qub rau kev qhia meej thiab tshem tawm cov impurities nrog cov tshuaj fluorine silicate clarified ntxiv ntawm sodium chloride (ua tshaj li ntawm 25%) rau cov tshuaj tiv thaiv ntawm sodium fluorosilicate. Ntxiv mus los ntawm kev sib cais centrifugation, ntxuav, cua kom qhuav ntawm qhov kub hauv qab 300 degree thiab tom qab ntawd pulverize kom tau cov khoom tiav ntawm sodium fluorosilicate. H2SiF6 + 2NaCl → Na2SiF6 + 2HCl |
| Qeb | Cov tshuaj lom. |
| Toxicity grading | Muaj tshuaj lom heev. |
| Mob toxicity | Qhov ncauj-nas LD50: 70 mg / kg. |
| Cov ntaub ntawv khaus | Daim tawv nqaij-liab 500 mg Me; Qhov muag-liab 100 mg / 4 vib nas this Mob hnyav. |
| Flammability thiab phom sij | Nws yog non-combustible nrog hluav taws tso tshuaj fluoride thiab sodium oxide, silica pa luam yeeb; Thaum nws tau txais cov kua qaub, nws tuaj yeem tsim cov tshuaj lom hydrogen fluoride. |
| Cov yam ntxwv khaws cia | Nyiaj txiag: qhov cua, qhov kub thiab txias; khaws nws cais ntawm zaub mov thiab kua qaub. |
| Cov tshuaj tua hluav taws | dej ntau. |
| Cov qauv kev tshaj lij | TWA 2.5 mg (fluorine) / cubic meter. |
| Chemical Properties | hmoov dawb |
| Chemical Properties | Sodium hexafluorosilicate yog dawb crystalline khoom. |
| Siv | Sodium hexafluorosilicate yog siv los ua ib qho ntxiv rau dej fluoridation, opal iav raw khoom thiab hauv ore refining. Nws kuj tseem siv rau hauv kev npaj lwm yam tshuaj fluoride xws li sodium fluoride, sodium hexafluoroaluminate, potassium hexafluorosilicate, ammonium fluoride thiab calcium fluoride. Nws pom daim ntawv thov ua flotator, tivthaiv rau ntub etching, ntoo preservative, brazing flux thiab vuam compound. Nws yog ib qho active tivthaiv ntawm pob zeb. |
| Siv | Nyob rau hauv enamels rau Tuam Tshoj thiab porcelain; kev tsim cov iav opal; raws li tshuaj tua kab, tshuaj tua kab; mothproofing ntawm woolens. Fluoridating tus neeg sawv cev rau cov dej haus. Intermediate nyob rau hauv zus tau tej cov hluavtaws cryolite. |
| Kev piav qhia dav dav | Fine, dawb, tsw, hmoov khoom. Toxic los ntawm kev noj, nqus pa thiab nqus ntawm daim tawv nqaij. Siv ua tshuaj tua kab mob. |
| Cua & Dej Reactions | Dej soluble. |
| Reactivity Profile | Sodium fluorosilicate muaj zog oxidizing los yog txo hwj chim. 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 | Toxic los ntawm kev noj thiab nqus pa, muaj zog irritant rau cov ntaub so ntswg. |
| Health Hazard | Kev nqus plua plav tuaj yeem ua rau lub qhov ntswg thiab caj pas. Kev noj haus ua rau cov tsos mob zoo ib yam li tshuaj fluoride lom; compound yog heev toxic; thawj cov tsos mob muaj xws li xeev siab, ntuav, ntuav, raws plab, thiab lub cev qhuav dej; nyob rau hauv cov mob hnyav, convulsions, poob siab, thiab cyanosis tom qab tuag nyob rau hauv 2-4 hr. Kev sib cuag nrog qhov muag ua rau khaus khaus. Kev sib cuag nrog daim tawv nqaij ua rau pob khaus, liab, thiab kub hnyiab, qee zaum ua raws li qhov tsim ntawm qhov txhab. |
| Hluav Taws Xob | Cwj pwm hauv hluav taws: Decomposes ntawm liab kub |
| Flammability thiab Explosibility | Tsis yog nplaim taws |
| Kev siv tshuab | Sodium fluorosilicate (Na2SiF6) yog dawb, isomorphous hmoov. Solubility hauv dej zoo ib yam li NaF. Hauv acid pH, solubility zoo dua. Kev lag luam, Na2SiF6 yog tsim los ntawm kev kho mob ntawm fluorosilic acid nrog sodium chloride, raws li qhia hauv cov tshuaj tiv thaiv hauv qab no: H2SiF6+ 2NaCl=Na2SiF6+ 2HCl |
| Kev ruaj ntseg Profile | Tshuaj lom los ntawm kev noj tshuaj thiab subcutaneous txoj kev. Ib daim tawv nqaij thiab qhov muag heev irritant. Ib qho tshuaj tua kab. Thaum rhuab mus rau decomposition nws emits heev fumes ntawm Fand Na2O. |
| Ntxim yuav nphav raug | Sodium hexafluorosilicate yog raws li tshuaj tua kab mob; raws li ib qho nruab nrab hauv kev tsim cov hluavtaws cyrolite; raws li ib tug insecticide nyob rau hauv delousing thiab mothproofing ntawm woolens. |
| Kev xa khoom | UN2674/Sodium fluorosilicate, Hazard Class: 6.1; Cov ntawv lo: 6.1-Cov khoom muaj kuab lom. |
| Txoj Kev Purification | Crystallize nws los ntawm dej kub (40mL / g) los ntawm txias. |
| Kev tsis sib haum xeeb | Reacts nrog acids los tsim hydrogen fluoride, ib tug heev corrosive thiab lom gas. |
| Sodium fluorosilicate Preparation Products Thiab Raw Materials |
| Cov khoom nyoos | Sodium carbonate-->Sodium sulfate-->Sodium chloride-->Hydrogen fluoride-->CARBON MONOXIDE-->Quartz-->Barium chloride dihydrate-->Hexafluorosilicic acid-->Calcium phosphate monobasic-->Fumed Silica-->Sodium fluoride-->phosphoric acid by wet process-->Phosphate rock powder-->INDUSTRIAL SALT-->Fluorine-->Cobalt carbonate |
| Cov khoom npaj | Sodium fluoride-->Trisodium phosphate-->Urea phosphate-->Dregs remover |
Cim npe nrov: Tuam Tshoj sodiumhexafluorosilicate manufacturers, lwm tus neeg, Hoobkas
Tug: Barium Fluoride
Tom ntej: Magnesium Fluorosilicate
Koj Tseem Yuav Zoo Li
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