Chaw tsim tshuaj paus Zoo Nqe Sodium fluoride CAS: 7681-49-4

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Sodium fluoride: NaF; SF;Inorganic Fluoride; Molecular Luj: 41.99 Lub cev thiab tshuaj lom neeg: Tsis muaj xim ci ci siv lead ua los yog hmoov dawb, lub ntiajteb txawj nqus 2.25, melting point 993C boiling point 1695C.Soluble hauv dej (solubility 10C366,206 406,300422,40C 4.4.60C468.80-C4.89,100 “C508), hydrogen xib fwb acid, me ntsis soluble hauv cawv.Aqueous tov yog qaug zog alkaline, soluble nyob rau hauv hydrofluoric acid thiab mus rau hauv sodium fluoride, tuaj yeem corrode iav.Toxic!.
Sodium fluoride CAS 7681-49-4 NaF; SF;Inorganic Fluoride;UN NO 1690;Kev phom sij: 6.1
EINECS NO 231-667-8
Khoom npe: Sodium fluoride

CAS: 7681-49-4 Nr

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Synonyms

Sodium fluoride;NaF; SF;Inorganic Fluoride

Kev siv Sodium fluoride

Sodium fluoride;NaF; SF;Inorganic Fluoride, 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.
1. Sodium fluoride feem ntau yog siv los ua Inlaid steel rau txhua yam hniav thiab planer los txhim kho lub zog vuam.Qhov 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 ua lwm yam 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, khaws cia ntoo, tshuaj, metallurgy, kev tsim cov fluorides thiab lwm yam.
3. Siv rau kev txiav txim siab ntawm scandium hauv microanalysis, kev txiav txim siab ntawm phosphorus hauv photoelectric colorimetric tsom xam, siv los ua reagent, cov neeg ua haujlwm npog ntsej muag, cov khoom khaws cia ntawm cov hlau thiab hlau.
4. Ua zaub mov noj.Raws li Suav txoj cai rau ntsev, qhov siab tshaj plaws 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 yuav 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 manufacturing 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.

Specification ntawm Sodium fluoride

Yam khoom	SPEC
Sodium Fluoride	98.00% MIN
Dej (H2O)	0.5% MAX
Sulfate (SO42-)	0.30% MAX
Dej-insoluble teeb meem	0.7% MAX
Sodium Carbonate (Na2CO3)	0.5% MAX
Acidity (raws li HF)	0.1% MAX
Silicon oxide (SiO2)	0.5% MAX