Yuav ua li cas yog sodium hydrogen sulfate?

Sodium sulfate - yog lub acid ntsev ntawm sodium thiab sulfuric acid. Denoted NaHSO4 lub substance neeg pab leg ntaubntawv. Sodium sulfate yog ib tug pob tshab siv lead ua muaj tsis muaj ib yam tsw. Cov hniav puas loj ntawm lub substance yog sib npaug zos rau 120,06 grams tauj ib tias, thiab cov kev ceev - 2,472 gram ib nyhav centimeter. Nws melts ntawm ib tug kub ntawm +186 ° C. Thaum cua sov rau cov tshuaj yeeb dej caw tau cai ob polymorphic hloov - ntawm ib tug kub ntawm +140 ° C thiab +170 ° C.

Sodium sulfate yuav tsum reacted nrog alkali, dua nyob rau hauv cov tshuaj tiv thaiv rau sulfate. Yog li, los ntawm reacting nws nrog sodium hydroxide tsim sodium sulfate thiab dej. Yog hais tias ib tug muaj zog cua sov ntawm lub tib cov ntaub ntawv (mus txog +250 C ° los yog ntau tshaj) uas nws yog phua rau hauv sodium pyrosulfate thiab dej.

Feem ntau, cov sodium sulfate tsis hnov mob nrog rau lwm cov tshuaj, txawm li cas los, sintering tshwm sim nyob rau ib tug kub siab tshaj +450 ° C, nws muaj peev xwm sawv ntawm reacting nrog lub ntsev thiab oxides.

Lub tswv yim muaj nuj nqis ntawm no substance yog zoo: nws yog siv nyob rau hauv nonferrous metallurgy (raws li flux), nws kuj ua raws li ib tug reagent nyob rau hauv tus neeg txhais lus oxides sulfates. Nws yog ib tug muaj zog denaturing. Yog lug siv nyob rau hauv ua noj ua haus (officially sau npe raws li ib tug khoom noj khoom haus additive E514).

Txawm li cas los, txawm nws muaj kev tseem ceeb nyob rau hauv tib neeg lub neej, sodium sulfate hydrogen kuj yuav txaus ntshai: yog ib tug muaj zog alkali, lub tshuaj yog heev corrosive, nyob rau hauv kev sib cuag nrog cov tawv nqaij yuav tawm yam mob loj heev kev kub nyhiab, ua puas tsuaj thiab qhov muag. Qhov loj tshaj kev nyab xeeb yog ntog mus rau hauv txoj hnyuv ib ntsuj av. Nws yog kuj tsis tshua muaj teeb meem tshuaj thiab inhalation ntawm vapors.

Them mus rau qhov tsis zoo feem ntawm sodium bisulfate rau tib neeg lub cev yog ib yam khoom uas cim los ntawm lub thoob ntiaj teb lub cim ntawm lub "Danger" yog ib tug square txiv kab ntxwv, dissected ob kab pheeb ces kaum dub kab txaij. Ib tug sau npe hais tias hais txog cov kev piam sij ntawm tshuaj tsis tau tsuas yog rau cov tib neeg tab sis kuj rau cov ib puag ncig, raws li zoo raws li cov kev txwv muab tso rau nws ntau lawm.

Rau sodium hydrogensulfate tsim nyog los ua cov tshuaj tiv thaiv ntawm concentrated sulfuric acid thiab sodium hydroxide, lub thiab sulfuric acid yuav tsum nyob rau hauv excess. Raws li ib tug tshwm sim, tshuaj tiv thaiv no ua sodium bisulfate thiab dej.

Txawm li cas los, ua ntej koj noj rau lub tau txais daim ntawv ntawm cov khoom no rau tau nws tus kheej sodium. Kev npaj ntawm sodium yog tsis heev nyuab txoj kev, thiab ib co ntawm cov kev ua tau txawm nyob rau hauv lub tsev.

Ib tug ntawm cov earliest txoj kev yog cov tshuaj tiv thaiv ntawm sodium tau rov qab ntawm sodium carbonate (Na2CO3) nyob rau hauv ib tug kub thee (nyob ib ncig ntawm +1000 ° C). Nws tshwm sim yog kom tau ntshiab sodium thiab kev rho tawm ntawm cov pa roj carbon monoxide. Ua cov tshuaj tiv thaiv yog tsis heev lub sij hawm haus mas, tab sis vim yog qhov kev tso tawm ntawm cov pa roj carbon monoxide, nws tau los ua nyaum heev.

Yog li ntawd nws tau raug yees lwm txoj kev ntawm kev npaj - electrolysis ntawm molten sodium tshuaj dawb. Qhov kom zoo dua ntawm no txoj kev yog tsis tsuas nws tus txheeb ze muaj kev ruaj ntseg, tab sis kuj me me tshaj nyob rau hauv lub yuav txo tau tej yam khoom uas cua sov kub: +600 C ° es tsis txhob +1000 ° C. Hais tias yog, qhov no txoj kev muaj peev xwm yuav siv tau nyob rau hauv tsev - yog hais tias, ntawm chav kawm, muaj cov tau cov cua kub ntawm sodium tshuaj dawb (cov ntsev) rau hais tias kub.

Nyob rau lub hauv paus ntawm sodium - ntawm sib-active caij ntawm lub periodic rooj - npaj congeners sodium hydrogensulfate thiab tsis muaj tsis tseem ceeb rau tib neeg. Qhov no tshuaj - sodium hydrosulfide, acid ntsev thiab sodium hydrogen sulfide. Nws nruab nrab yog dawb muaju, denoted los ntawm mis NaHS. Nws yog tau los ntawm xeem dhau hydrogen sulphide los ntawm ib tug tov ntawm sodium sulfide thiab hydrogen sulfide by dua los ntawm sodium hydroxide tshuaj.

Sodium hydrosulfide reacts nrog alkalis thiab acids, yooj yim oxidized los ntawm cov pa. Los ntawm melting yuav dub. Nws yog dav siv: ib feem ntawm cov txhais tau tias siv tau los tshem tawm cov daim tawv nqaij khaubncaws sab nraud povtseg, muab faib nyob rau hauv textiles, siv raws li raw khoom rau zus tau tej cov ntau dyes butifos.