Sodium Hydrosulphide (sodium Hydrosulfide)
Kev qhia tshwj xeeb
| Yam | Phiaj qhia ntawv |
| Nahs (%) | 70% min |
| Fe | 30 ppm max |
| Na2s | 3.5% max |
| Dej insoluble | 0.005% Max |
kev siv
siv hauv kev lag luam tsuas yog cov inhibitor, tus neeg saib xyuas tus kheej, tshem tawm tus neeg sawv cev
Siv hauv hluavtaws organic intermediate thiab kev npaj ntawm sulphur zas additives.
Siv rau hauv textile kev lag luam raws li kev ua kom dawb huv, raws li qhov desulfurizing thiab raws li lub ntsej muag dechlorinating
siv hauv pulp thiab daim ntawv kev lag luam.
Siv hauv cov dej kho raws li cov pa oxygen tus neeg sawv cev.
Lwm Yam Siv
♦ Hauv kev lag luam yees duab los tiv thaiv cov kev daws teeb meem los ntawm oxidation.
Nws yog siv rau kev tsim cov roj hmab tshuaj thiab lwm yam kev siv tshuaj sib xyaw.
Nws siv tau rau lwm cov ntawv thov suav nrog kev muab tshuaj txhuam, roj rov qab, cov khoom noj, ua kom tuag, thiab xab npum.
Xuas Thiab Cia
A.Praffions rau kev tuav
1.Hhanling tau ua nyob rau hauv qhov chaw muaj cua zoo.
2.Txoj tsim khoom tiv thaiv tiv thaiv.
3.Siv kev sib cuag nrog tawv nqaij thiab qhov muag.
4.Koj deb ntawm tshav kub / txim taws / qhib cov nplaim taws / kub.
5.Txoj kev tiv thaiv kev ceev faj tiv thaiv kev tawm tsam ib txhis.
B.Predout rau cia
1.Koj ntim kaw kom nruj.
2.Koj thawv hauv qhov chaw qhuav, txias thiab muaj qhov zoo.
3.Koj tawm ntawm tshav kub / txim taws / qhib hluav taws / kub.
4. Khaws deb ntawm cov ntaub ntawv tsis sib xws thiab cov khoom noj khoom noj.
Kev Siv Lub Cev thiab Tshuaj Ntawm Sodium Hydrosulphide (Nahs)
1. Lub cev lub cev
Cov tsos mob: sodium hydrosulfide feem ntau yog dawb los yog lub teeb daj daj crystalline hmoov. Nws kuj tseem yuav yog tus tsis muaj kob daj, Deliquescent Crystal nrog cov roj hydrogen sulfide tsw.
Melting taw tes: lub taw tes melting ntawm anhydrous sodium hydrosulfide yog 350 ° C; Lub ntsiab lus melting ntawm cov hydlest yog qis dua, ntawm 52-54 ° C. Txawm li cas los xij, qee cov ntaub ntawv qhia tias lub ntsiab lus melting ntawm sodium hydrosulfide yog 55 ° C.
Ntws: qhov ntom ntawm sodium hydrosulfide yog 1.79 g / cm³, lossis 1790 kg / mg.
Solubility: sodium hydrosulfide yog yooj yim soluble hauv dej thiab dej cawv, thiab nws cov kua aqueous yog alkaline. Raws li qee cov ntaub ntawv, cov solubility ntawm sodium hydrosulfide hauv dej yog 620g / l ntawm 20 ° C.
2. Tshuaj lom neeg
Acidity thiab Alkalinity: Cov kua aqueous ntawm sodium hydrosulfide yog alkaline.
Cov tshuaj tiv thaiv nrog acid: sodium hydrosulfide tso tawm hydrogen sulfide roj thaum nws ntsib acid. Cov kev sib npaug ntawm cov tshuaj tiv thaiv yog: Nahs + H + → H2s ↑ + na +.
Cov tshuaj tiv thaiv nrog cov leej faj: sodium hydrosulfide tuaj yeem hnov cov polysulfides yog: 2NaS + 4s → nas4 + h2s4 + h25.
Kev txiav tawm sai: Sodium Hydrosulfide yog ib qho kev siv txo tus neeg sawv cev uas tuaj yeem yauv ua cov oxidants ntau nrog ntau tus oxidants.
3. Lwm cov khoom siv
Kev ruaj khov: sodium hydrosulfide yog ib qho chaw ruaj khov, tab sis nws yog hygroscopic. Nyob rau tib lub sijhawm, nws kuj yog cov khoom siv khov kho thiab tej zaum yuav taws rau hauv huab cua.
TOXICICITY: Sodium Hydrosulfide yog lom rau qee yam thiab muaj kev phom sij rau tib neeg lub cev thiab ib puag ncig. Yog li, kev tshwj xeeb yog yuav tsum tau them rau kev tiv thaiv kev nyab xeeb thaum siv thiab cia.
Nyob rau tam sim no, lub tuam txhab muaj zog nthuav dav ua kev lag luam txawv teb chaws thiab thoob ntiaj teb.
Nyob rau peb lub xyoos tom ntej no, peb tau cog lus los ua ib qho ntawm cov khoom lag luam tshiab rau hauv Suav teb kev lag luam txhua hnub thiab ua tiav qhov teeb meem yeej nrog ntau tus neeg yuav khoom.
Yam ntim
Ntaus ib qho: 25 kg pp hnab (tsis txhob los nag, noo thiab lub hnub kis thaum thauj mus los.)
Ntaus ob: 900/1000 kg lub hnab ntim (zam dhau los nag, noo thiab lub hnub kis thaum thauj mus los.)
qho chaw thau khoom
Kev Thauj Khoom
Tuam Txhab Ntawv Pov Thawj
Cov qhua tuaj noj mov vists
