Cov txheej txheem:

Sodium sulfite thiab nws siv
Sodium sulfite thiab nws siv
Anonim

Chemistry tau txais txiaj ntsig rau noob neej nrog ntau cov ntsiab lus muaj txiaj ntsig, pab txhawb lub neej zoo thiab qhib ntau qhov chaw tshiab uas yav tas los tsis paub rau tib neeg. Ntawm cov khoom tsim nyog yog sodium sulfite, uas tau pom nws daim ntawv thov nyob rau hauv ntau yam ceg ntawm tib neeg kev ua si.

sodium sulfite
sodium sulfite

Tshuaj thiab lub cev muaj zog

Sodium sulfite (anhydrous) yog cov hmoov dawb, qee zaum nrog daj daj. Tsis kub hnyiab, tsis muaj peev xwm tawg, tab sis thaum rhuab, nws decomposes, tsim cov pa roj carbon monoxide, nyob rau hauv kev twb kev txuas nrog uas nws tau raug xa mus rau 3rd chav kawm txaus ntshai. Cov khoom decomposition uas sodium sulfite cov ntaub ntawv tuaj yeem cuam tshuam lub hauv nruab nrab lub paj hlwb, ua rau qaug zog yog tias nqus tau, txo lub peev xwm ua pa, ua kom lub plawv dhia ntau dhau, thiab ua rau cov pob txha, tawv nqaij thiab qhov muag puas. Tias yog vim li cas thaum muaj hluav taws kub, qhov twg sodium sulfite khaws cia, nws yog ib qho tsim nyog yuav tsum tau nkag mus rau nws raws li kev tiv thaiv: nyob rau hauv ib tug tshwj xeeb ce thiab ib txwm nrog ib tug ua pa apparatus. Yog hais tias cov khoom tawg, qhov chaw no yuav tsum tau tiv thaiv nrog ib sab ntawm lub ntiaj teb, cov hmoov nws tus kheej yuav tsum tau them nrog ib yam dab tsi nruab nrab (piv txwv li, xuab zeb) thiab tsuas yog tom qab ntawd.sau.

Sodium sulfite - preservative

Cov hmoov no siv qhov twg? Cov tshuaj muaj txiaj ntsig zoo heev. Ua tsaug rau lawv, sodium sulfite yog siv, piv txwv li, hauv kev lag luam zaub mov. Txiv hmab txiv ntoo thiab zaub ua tiav nrog nws khaws cia ntev dua yam tsis muaj qhov tsaus ntuj. Raws li ib tug preservative, nws yog siv nyob rau hauv winemaking thiab nyob rau hauv lub chaw tsim khoom ntawm cov khoom qab zib; nws yog siv los ua cov txiv hmab txiv ntoo qhuav qhuav. Nyob rau tib lub sijhawm, nws yuav tsum raug sau tseg tias hauv Tebchaws Yelemees nws raug txwv tsis pub siv sodium sulfite hauv kev ua cov nqaij, vim nws npog nws cov xim tsis zoo, uas tuaj yeem ua rau muaj tshuaj lom ntau.

chemical zog ntawm sodium sulfite
chemical zog ntawm sodium sulfite

Lwm daim ntawv thov

Ntxiv rau cov zaub mov, qhov thib ob tseem ceeb ntawm kev siv cov khoom siv no yog textile, nrog rau cov khoom siv pulp thiab ntawv. Qhov no yog qhov tseem ceeb ntawm sodium sulfite mus. Tab sis nws kuj yog siv rau kev lim dej, thiab rau tawv hnav khaub ncaws. Nws purifies trinitrotoluene, uas yog tom qab siv hauv mining los yog ua tub rog lub hom phiaj. Pharmaceutics thiab tshuaj kuj tsis tso tseg cov tshuaj no. Ntawm no, kev daws teeb meem ntawm sodium sulfite feem ntau xav tau. Cov tshuaj hu rau ntawm no kuj tseem siv rau hauv kev tsim cov hlau tsis muaj hlau thiab sodium thiosulfate, uas yog cov kws kho mob tau sau tseg thaum muaj tshuaj lom nrog cov derivatives ntawm txhuas, mercury thiab arsenic.

Obsolete direction

sodium sulfite daws
sodium sulfite daws

Nyob rau hnub ntawm lub koob yees duab zaj duab xis thiab cov koob yees duab zaj duab xis, sodium sulfite tsuas yog tsim nyog rau kev tsim cov yeeb yaj kiab lawv tus kheej, tiv thaiv oxidation ntawm cov kev daws teeb meem thiab ntxuav tawm (cov yeeb yaj kiab lossisdaim ntawv duab) los ntawm tus kho. Tam sim no, nrog kev sib kis ntawm cov analogues digital, qhov kev siv cov tshuaj no tseem yog rau cov neeg nyiam ua haujlwm uas tau khaws cov txheej txheem qub. Cov kws tshaj lij-cov kws yees duab ntawm lub sijhawm qub tau thov tias thaum tsim cov yeeb yaj kiab dub thiab dawb, nws yog sodium sulfite uas ua rau nws muaj peev xwm ua tiav cov ntsiab lus tseem ceeb tshaj plaws hauv cov duab ntxoov ntxoo thiab ua kom cov duab rhiab heev nrog qhov tsis zoo ntawm qhov tsis zoo.

Raws li koj tuaj yeem pom, qhov no yog cov khoom tsim nyog hauv ntau qhov chaw ntawm tib neeg lub neej. Thiab yog tias qee qhov kev taw qhia ntawm nws txoj kev siv ua tsis cuam tshuam, lwm qhov, tsis muaj qhov tseem ceeb tsawg dua.

Pom zoo: