Hauj lwm lawm

Sodium Bisulfite (CAS {{{0} ahshs {}}}}}}}}} cov ntaub ntawv, thiab cov ntaub ntawv tswj hwm .

Tshuaj lom neeg thiab cov khoom siv lub cev

Ntiag tug	Cov ntsiab lus
Tshuaj Cov Qauv	Naho₃ (feem ntau muaj nyob ua cov khoom ruaj khov nyob rau hauv sib npaug nrog cov metabisulfite, nees₂o₅)
Tus hniav loj	104.06 g / mol
Kev tshwm sim	Dawb rau cov hmoov daj; Hygroscopic (nqus dej noo los ntawm huab cua) .
Melting taw tes	Decomposes saum toj no 150 qib (tso tawm sulfur dioxide, so₂).
So	Heev soluble hauv dej (60 g / 100 ml ntawm 20 degree); Insoluble hauv cov kuab tshuaj organic .
Ph (1% aqueous)	Acidic (pH 3-5 vim yog hysolysis ntawm hso₃⁻ rau hs thiab so₃²⁻) .
Ceev	1.48 g / cm³
Ruaj khov	Tsis ruaj khov nyob rau hauv muaj cov muaj zog oxidizers, acids, lossis cua sov; Tso tawm kom lom zem soft .

Muaj Cov Ntawv Thov

. kev kho dej
● Kev txiav txim siab: txo cov tshuaj hauv cov dej hauv dej los ntawm kev rov ua kom muaj cl₂:
Naho₃ + Clu + H₂o akso₄ + 2 hcl
● Kev haus tshuaj: 3-5 mg / u rau cov dej haus; 5-10 mg / u rau kev lag luam wastewater .
● Cov pa txav: Tiv thaiv kev xeb hauv boilers hauv boilers nyob rau hauv boilers los ntawm kev tshem tawm cov pa tsw yaj:
2Nahnoo + ₂ → 2Na₄₄
B . zaub mov thiab dej haus kev lag luam
● Tshuaj tiv thaiv: inhibits microbial kev loj hlob thiab oxidation hauv cov txiv hmab txiv ntoo, cawv, thiab kua txiv .
● Tso cai txwv: EU: tsawg dua los yog sib luag rau 200 mg / kg hauv cov txiv ntoo qhuav; FDA (USA): Gras (feem ntau lees paub tias muaj kev nyab xeeb) nrog siv kev txwv .
● Tshuaj dawb tus neeg saib xyuas: Whitens cov hmoov txhuv nplej siab thiab hmoov (e {{{} g}, txo xim los ntawm polyphenols).
C . sam sam thiab pob ntawv tsim
● Ntoo pulp tshuaj dawb: hloov pauv mus rau hauv cov dej-soluble cov tebchaw, txhim kho daim ntawv ci ci.
● Txheej txheej concentration: 1-3% naho₃ daws ntawm 60-80 degree.
d .} Kev Tshuaj Ntsuam Xyuas Tshuaj Synthesis
● Txo tus neeg sawv cev: siv nyob rau hauv cov chaw tshuaj nruab nrab (e {{{} g}} pawg rau amines) .
● Polymnerization inhiboritor: txwv tsis pub ua ntej polomers (E {{}}}, Acrylic acid) {2}.

Kev Nyab Xeeb thiab Kev Tiv Thaiv Kev Nyab Xeeb

{. kev nyab xeeb kev nyab xeeb

Raug txoj kev	Cuam tshuam
Siv nqus tau	Ua pa tawm ua pa; Kev kis tau loj ua rau hnoos, hawb pob, thiab tu tshuaj lom .
Daim tawv nqaij tiv tauj	Ua rau liab, khaus, thiab tshuaj hlawv (mob hlwb (mob plab hauv cov kev daws teeb meem).
Kev noj	Hlawv lub qhov ncauj, caj pas, thiab lub plab; tej zaum yuav ua rau xeev siab, ntuav, thiab electrolyte imbalance .
Carcinogenicity	Tsis faib ua carcinogen los ntawm oorc, NTP, lossis osha .

B .} ib qho kev cuam tshuam ib puag ncig ib puag ncig

Neeg muaj plaub hau: Lc50 (ntses): ~ 100 mg / l; tuaj yeem qis dua cov dej pH thiab ua mob rau dej plaub .

Biodegradity: Ib nrab biodegradable; tuaj yeem tso cov sulfite ions, uas tuaj yeem hnov mob nrog dej los ua sulfurous Acid .

Ntim thiab Ntim Khoom

Yam	Cov ntsiab lus
Ntim Khoom	- Lub hnab: {{25- kg los yog {{1 kg multure-txheej polyethylene (PP) nrog puab lin {}} - Lub nruas: 200l steel nruas kab kab nrog PE rau qhov loj tso .
Kev Cia	- Kub: 10-30 degree; kev vaum<60% RH. - kom deb ntawm oxidizers (e {{1} g {}, chlorine, acids, thiab cua sov.
Daim fab xwb	- UN NEO:UN 1313(Chav Kawm 8, Corrosive) . - Cov cim kev phom sij: Corrosive, lom roj (roj fais fab icon) . - Cov lus ceeb toom: "kom deb ntawm dej," "Zam kev nqus pa ."

Cov Lus Qhia Txog Cov Ntaub Ntawv

Cheeb Tsam / Txoj Cai	Yuav tsum tau
USA (OSHA)	- Pel (tso cai raug txwv tsis pub dhau): 5 mg / mp (li so₂) rau 8- teev Twa. - yuav tsum sds muaj nyob hauv cov chaw ua haujlwm .
EU (ncav cuag)	- Registration required for production/import >1 tuj / xyoo . - cais raws li cov tawv nqaij . 1 b (H314) thiab cov nyiag se 3 (H335).
Tuam Tshoj (GB 12463)	- Ntim yuav tsum ntsib cov qauv khoom muaj kev phom sij; Import / export yuav tsum tau tshuaj lom neeg tso cai .
Thoob Ntiaj Teb (IMDG / IATA)	- cais raws li chav kawm 8 tus neeg muaj kev sib kho; Cov lus qhia tshwj xeeb rau hiav txwv / Huab Cua Thauj .

Cov Lus Nquag Nug (FAQ)

Q: Cov sodium bisulfite hnov mob nrog kua qaub?

A: Nws ua rau muaj zog nrog cov kua qaub rau tso tawm sulfur dioxide roj {}}} Piv txwv:
Naho₃ + HCL → Nacl + H₂o + So₂↑
Qhov tshuaj tiv thaiv no yuav tsum tsis tau qhov cua thiab cov phiaj xwm kho kom muaj xwm txheej ceev thaum muaj kev sib xyaw sib xyaw .

Q: Puas tuaj yeem sodium bisulfite siv hauv cov organic ua liaj ua teb?

A: Hauv feem ntau cov cheeb tsam, nws siv tau txwv hauv cov txheej txheem organic {}} organic qauv ua ntej cov tshuaj uas pom zoo rau ntuj lossis cov tshuaj uas pom zoo.

Q: Dab tsi yog lub txee lub neej ntawm sodium bisulfite?

A: Raws li cov neeg muaj kev cia (txias

Tag

Sodium Bisulfite (CAS {7631-90-5 Tsis tau siv cov kev pab cuam zoo rau tib neeg kev noj qab haus huv, ib puag ncig kev nyab xeeb, ib txwm muaj kev nyab xeeb cov kev cai thiab cov ntaub ntawv muaj kev nyab xeeb Nplooj .

Cim npe nrov: Sodium bisfite 7631-90-5, Suav sodium nplfite {}} cov chaw tsim khoom, cov chaw tsim khoom, Hoobkas

Sodium bislfite 7631-90-5