Sodium fluoride,yog ib hom tshuaj inorganic, cov tshuaj mis yog NaF, feem ntau yog siv rau hauv kev lag luam txheej txheem ua phosphating accelerator, tshuaj tua kab ua liaj ua teb, cov ntaub ntawv sealing, preservatives thiab lwm yam teb.
Cov Khoom Siv Lub Cev:Qhov ceev sib piv yog 2.558 (41/4 ° C), qhov taw tes yaj yog 993 ° C, thiab qhov taw tes kub yog 1695 ° C [1]. (Qhov ceev sib piv 2.79, qhov taw tes yaj 992 ° C, qhov taw tes kub 1704 ° C [3]) Yaj hauv dej (15 ° C, 4.0g / 100g; 25 ° C, 4.3g / 100g phau ntawv tshuaj lom neeg), yaj hauv hydrofluoric acid, thiab tsis yaj hauv ethanol. Cov kua dej yog alkaline (pH = 7.4). Tshuaj lom (ua rau lub paj hlwb puas tsuaj), LD50180mg / kg (nas, qhov ncauj), 5-10 grams kom tuag. Cov khoom: tsis muaj xim lossis txawm tias dawb crystalline hmoov, lossis cubic siv lead ua, cov siv lead ua zoo, tsis muaj ntxhiab.
Cov khoom siv tshuaj lom neeg:Cov siv lead ua ci ntsa iab los yog hmoov dawb, tetragonal system, nrog rau cov siv lead ua hexahedral lossis octahedral. Me ntsis soluble hauv cawv; soluble hauv dej, cov kua dej yog acidic, soluble hauv hydrofluoric acid los ua sodium hydrogen fluoride.
Daim Ntawv Thov:
1. Nws siv tau ua cov hlau uas muaj cov pa roj carbon ntau, xws li cov tshuaj tiv thaiv huab cua ntawm cov hlau npau, cov tshuaj txhuas electrolytic lossis electrolytic refined melting agent, kev kho dej ntawm daim ntawv, cov tshuaj tiv thaiv ntoo (nrog sodium fluoride thiab nitrate lossis diitol phenol Rau kev tiv thaiv xeb ntawm cov khoom siv hauv paus), siv cov ntaub ntawv (dej haus, tshuaj txhuam hniav, thiab lwm yam), cov tshuaj tua kab mob, tshuaj tua kab, cov tshuaj tiv thaiv, thiab lwm yam.
2. Nws yog siv los tiv thaiv cov kab mob hniav thiab cov kab mob qhov ncauj hauv qhov tsis muaj fluoride hauv cov dej hauv cov dej hauv cov dej;
3. Cov koob tshuaj me me feem ntau yog siv rau kev mob pob txha thiab kab mob pob txha paget;
4. Nws siv tau ua cov khoom siv raw lossis fluoride nqus tau lwm yam fluoride lossis fluoride;
5. Nws siv tau ua UF3 adsorbent hauv cov neeg sawv cev kho ntsev fluorine, cov chaw ua smelting, thiab kev lag luam nuclear;
6. Ntxuav cov hlau thiab lwm yam hlau, cov neeg sawv cev welded thiab welds;
7. Cov khoom siv ua los ntawm av nplaum, iav thiab enamel yaj thiab cov neeg sawv cev ntxoov ntxoo, cov tawv nqaij nyoos thiab cov neeg sawv cev kho epidermal ntawm kev lag luam suab nrov;
8. Ua cov phosphate promoters hauv kev kho qhov chaw ntawm cov hlau dub kom ruaj khov cov tshuaj phosphorurative thiab txhim kho kev ua tau zoo ntawm phosphorus membrane;
9. Ua ib qho khoom siv ntxiv rau hauv kev tsim cov ntaub ntawv sealing thiab cov ntaub nres, nws ua lub luag haujlwm hauv kev tiv thaiv kev hnav ntau ntxiv;
10. Ua cov khoom ntxiv rau hauv cov pob zeb ua vaj tse, txhim kho qhov kev tiv thaiv xeb ntawm cov pob zeb ua vaj tse.
Cov kev ceev faj:
1. Siv cov sodium fluoride los tswj cov tshuaj fluorine kom nruj me ntsis txhua hnub kom tiv thaiv kev tsim cov tshuaj lom fluoride;
2. Cov tshuaj sodium fluoride los yog gel yuav tsum muab tso rau hauv lub thawv yas;
3. Cov neeg mob, cov poj niam cev xeeb tub, cov poj niam pub niam mis, cov pob txha mos thiab cov raum tsis ua haujlwm hauv cov chaw uas muaj cov tshuaj fluoride ntau yog txwv tsis pub.
Kev ntim khoom thiab kev khaws cia
Txoj kev ntim khoom:Cov hnab yas lossis ob txheej hnab ntawv cowhide sab nraud fiber board boxes, plywood boxes, ntawv board boxes; cov yas boxes (khoom) sab nraud cov hnab yas; cov yas boxes (kua); ob txheej hnab yas lossis ib txheej hnab yas sab nraud sacks, yas weaving weaving, yas weaving weaving Hnab, latex box; cov yas composite yas woven hnab (polypropylene peb-hauv-ib hnab, polyethylene peb-hauv-ib hnab, polypropylene ob-hauv-ib hnab, polyethylene ob-hauv-ib hnab); cov yas lossis ob txheej hnab ntawv tawv sab nraud lub thawv ntoo ib txwm; xov iav fwj, hlau hau nias iav fwj, yas fwj lossis hlau fwj (thawv) lub thawv ntoo ib txwm; xov iav fwj, yas fwj lossis tin-plated hlau phaj fwj (thawv) Lub thawv, fiberboard thawv lossis plywood thawv. Khoom ntim: 25kg/hnab.
Cov kev ceev faj rau kev khaws cia thiab kev thauj mus los:Thaum lub sijhawm thauj mus los ntawm txoj kev tsheb ciav hlau, lub rooj sib dhos khoom txaus ntshai yuav tsum tau teeb tsa raws li Txoj Cai Thauj Mus Los Txaus Ntshai ntawm Lub Tsev Haujlwm Saib Xyuas Kev Tsheb Ciav Hlau. Ua ntej thauj mus los, xyuas seb lub thawv ntim khoom puas tiav thiab kaw. Thaum lub sijhawm thauj mus los, nws yuav tsum xyuas kom meej tias lub thawv yuav tsum tsis txhob xau, tawg, poob, lossis puas tsuaj. Nws raug txwv tsis pub sib xyaw nrog cov kua qaub, oxidant, zaub mov thiab cov khoom noj ntxiv. Thaum lub sijhawm thauj mus los, cov tsheb thauj mus los yuav tsum tau nruab nrog cov khoom siv kho mob thaum muaj xwm txheej ceev. Thaum lub sijhawm thauj mus los, yuav tsum raug tshav ntuj thiab nag kom tiv thaiv qhov kub siab. Khaws cia rau hauv lub tsev khaws khoom txias, qhuav, thiab muaj cua nkag. Qhov kub ntawm lub tsev qiv ntawv tsis pub tshaj 30 ° C, thiab qhov av noo tsis pub tshaj 80%. Ntim thiab kaw. Khaws cia sib cais ntawm cov kua qaub thiab cov tshuaj noj tau, tsis txhob sib tov. Qhov chaw khaws khoom yuav tsum muaj cov khoom tsim nyog los tswj cov xau. Siv cov txheej txheem tswj hwm "tsib ob npaug" ntawm cov khoom lom.
Lub sijhawm tshaj tawm: Tsib Hlis-11-2023