Chaw Tsim Khoom Zoo Tus Nqi Ammonium Chloride CAS: 12125-02-9

Ammonium chloride, (qib kev lag luam) Ammonium chloride (hu ua "chloramine", tseem hu ua xuab zeb halogen, cov mis tshuaj: NH4Cl) yog xim tsis muaj xim cubic siv lead ua los yog hmoov crystalline dawb. Nws saj ntsev thiab me ntsis iab thiab yog cov ntsev acid. Nws qhov ceev sib piv yog 1.527. Nws yaj tau hauv dej, ethanol thiab kua ammonia tab sis tsis yaj hauv acetone thiab ether. Cov kua dej yog cov kua qaub tsis muaj zog, thiab nws cov kua qaub nce ntxiv thaum cua sov. Thaum cua sov txog 100 ° C, nws pib yaj ntau heev, thiab thaum cua sov txog 337.8 ° C, nws yuav tawg ua ammonia thiab hydrogen chloride, uas, thaum raug txias, yuav rov sib xyaw ua ke los tsim cov khoom me me ntawm ammonium chloride thiab cov pa luam yeeb dawb uas tsis yooj yim rau tog thiab nyuaj heev rau yaj hauv dej. Thaum cua sov txog 350 ° C, nws yuav sublimate thiab thaum 520 ° C, nws yuav npau. Nws cov dej noo nqus tau me me, thiab thaum huab cua ntub dej tuaj yeem nqus cov dej noo rau ncuav mog qab zib. Rau cov hlau ferrous thiab lwm yam hlau, nws yog corrosive, uas, tshwj xeeb, muaj corrosion ntau dua ntawm tooj liab tab sis tsis muaj corrosion ntawm npua hlau. Ammonium chloride tuaj yeem tau txais los ntawm qhov kev ua haujlwm neutralization ntawm ammonia thiab hydrogen chloride lossis ammonia thiab hydrochloric acid (reaction equation: NH3 + HCl → NH4Cl). Thaum cua sov, nws yuav decompose rau hauv hydrogen chloride thiab ammonia reaction (equation: NH4Cl → NH3 + HCl) thiab qhov kev ua haujlwm tsuas yog rau sab xis yog tias lub thawv qhib system.
Ammonium chloride feem ntau yog siv rau cov roj teeb qhuav, cov roj teeb cia khoom, cov ntsev ammonium, tanning, plating, tshuaj, kev thaij duab, electrodes, nplaum, thiab lwm yam. Ammonium chloride kuj yog cov chiv nitrogen uas muaj nitrogen 24% txog 25%. Nws yog cov chiv acidic physiological thiab haum rau cov nplej, mov, pob kws, rapeseed thiab lwm yam qoob loo. Nws muaj cov teebmeem ntawm kev txhim kho cov fiber toughness thiab tension thiab txhim kho qhov zoo tshwj xeeb tshaj yog rau cov qoob loo paj rwb thiab linen. Txawm li cas los xij, vim yog qhov xwm txheej ntawm ammonium chloride, yog tias kev siv tsis raug, nws yuav coj qee qhov tsis zoo rau av thiab qoob loo.
Cov xwm txheej kev siv: kev siv ntawm Cov Neeg Sawv Cev ntawm Tuam Tshoj lub teb chaws tus qauv GB-2946-82.
1. Tsos: siv lead dawb
2. cov ntsiab lus ammonium chloride (qhuav qhuav) ≥ 99.3%
3. cov dej noo noo ≤1.0%
4. cov ntsiab lus sodium chloride (qhuav qhuav) ≤0.2%
5. cov ntsiab lus hlau ≤0.001%
6. Cov ntsiab lus hlau hnyav (hauv Pb) ≤0.0005%
7. cov dej tsis yaj hauv cov ntsiab lus ≤0.02%
8. cov ntsiab lus sulfate (hauv cov nqe lus ntawm SO42-) ≤0.02%
9. pH: 4.2-5.8
Ammonium chloride siv ua ib yam khoom ua kom tuab thiab ua ib yam khoom ntxiv rau hauv cov toners uas tsis muaj cawv. Raws li cov kws tsim cov khoom siv pleev kom zoo nkauj, cov khoom ammonium muab qhov kev xav tingling lossis stinging uas qee tus neeg cuam tshuam nrog cov toners lossis aftershaves, thiab uas, hauv cov toners ib txwm muaj, feem ntau yog muab los ntawm cov cawv. Kev siv Ammonium chloride yog qhov tshwm sim ntawm kev nyiam hauv kev xav ntawm cov qauv.
Ammonium Chloride yog ib yam khoom siv kho kom zoo nkauj rau cov khoom noj thiab cov khoom noj uas muaj nyob rau hauv cov xim tsis muaj xim lossis cov hmoov dawb crystalline. kwv yees li 30-38 g yaj hauv dej ntawm 25 ° c. qhov ph ntawm 1% kua ntawm 25 ° c yog 5.2. nws yog siv los ua cov khoom ua kom cov khoom noj muaj zog thiab cov khoom qab zib hauv cov khoom ci thiab ua qhov chaw nitrogen rau kev ua kom cov khoom noj muaj zog. nws kuj tseem siv rau hauv cov khoom qab zib thiab cov khoom qab zib. lwm lo lus rau ntsev yog ammonium muriate.
Cov siv lead ua dawb ua los ntawm cov ntsev ammonia ua rau hydrochloric acid ua raws li crystallization. Ammonium chloride kuj tseem hu ua sal ammoniac. Yaj hauv dej thiab cawv, ammonium chloride tau siv ua halide hauv ntau cov txheej txheem, suav nrog cov ntawv ntsev, ntawv albumen, albumen opaltype, thiab cov txheej txheem gelatin emulsion.