Sodium Acetate
Kufotokozera
▶Sodium acetate (CH3COONA) ndi mchere wa sodium wa acetic acid.Zimawoneka ngati mchere wopanda mtundu wopanda utoto wokhala ndi ntchito zambiri.M'makampani, atha kugwiritsidwa ntchito m'makampani opanga nsalu kuti achepetse zinyalala za sulfuric acid komanso ngati photoresist pogwiritsa ntchito utoto wa aniline.M'makampani a konkriti, atha kugwiritsidwa ntchito ngati chosindikizira konkire kuti achepetse kuwonongeka kwa madzi.Mu chakudya, angagwiritsidwe ntchito ngati zokometsera.Itha kugwiritsidwanso ntchito ngati yankho la buffer mu labu.Kuonjezera apo, amagwiritsidwanso ntchito potentha mapepala, kutentha m'manja ndi ayezi otentha.Pogwiritsa ntchito labotale, imatha kupangidwa ndi zomwe zimachitika pakati pa acetate ndi sodium carbonate, sodium bicarbonate ndi sodium hydroxide.M'makampani, amapangidwa kuchokera ku glacial acetic acid ndi sodium hydroxide.
▶Katundu Wamankhwala
Mchere wa anhydrous ndi kristalo wopanda mtundu wolimba;kachulukidwe 1.528 g/cm3;amasungunuka pa 324 ° C;zosungunuka kwambiri m'madzi;zosungunuka bwino mu ethanol.The colorless crystalline trihydrate ali ndi kachulukidwe 1.45 g/cm3;amawola pa 58 ° C;amasungunuka kwambiri m'madzi;pH ya 0.1M yamadzimadzi yamadzimadzi ndi 8.9;zosungunuka bwino mu Mowa, 5.3 g/100mL.
▶Kusungirako ndi Magalimoto
Iyenera kusungidwa m'nyumba yosungiramo zinthu zouma komanso zolowera mpweya, zosungidwa kutali ndi kutentha ndi chinyezi panthawi yoyendetsa, zotsitsidwa mosamala kuti zisawonongeke.Komanso, ziyenera kusungidwa mosiyana ndi zinthu zakupha.
Kugwiritsa ntchito
▶Mafakitale
Sodium acetate imagwiritsidwa ntchito m'makampani opanga nsalu kuti achepetse zinyalala za sulfuric acid komanso ngati photoresist pogwiritsa ntchito utoto wa aniline.Ndiwothandiziranso pickling mu kuwotcha kwa chrome ndipo imathandizira kulepheretsa vulcanization ya chloroprene pakupanga mphira wopangira.Pokonza thonje la thonje lotayira, sodium acetate imagwiritsidwa ntchito kuthetsa kuchuluka kwa magetsi osasunthika.Amagwiritsidwanso ntchito ngati "hot-ice" mu chotenthetsera chamanja.
▶ Moyo wautali wa konkriti
Sodium acetate imagwiritsidwa ntchito kuchepetsa kuwonongeka kwa madzi ku konkire pochita ngati chosindikizira cha konkire, komanso kukhala yabwino kwa chilengedwe komanso yotsika mtengo kuposa njira yomwe imagwiritsidwa ntchito kwambiri ndi epoxy yosindikiza konkriti motsutsana ndi kulowa kwamadzi.
▶Bafa yankho
Monga conjugate base of acetic acid, yankho la sodium acetate ndi acetic acid limatha kukhala ngati chotchinga kuti lisunge pH mlingo wokhazikika.Izi ndizothandiza makamaka pamakina am'madzi am'madzi momwe machitidwe amadalira pH mumtundu wa acidic pang'ono (pH 4-6).Amagwiritsidwanso ntchito pa ogula HEATING PADS kapena kutentha kwa manja ndipo amagwiritsidwanso ntchito mu ice.Sodium acetate trihydrate crystals amasungunuka pa 58 ° C, kusungunuka m'madzi awo a crystallization.Akatenthedwa mpaka 100 ° C, ndikuloledwa kuziziritsa, njira yamadzimadzi imakhala yochulukirapo.Njirayi imatha kuzizira kwambiri kutentha kwa chipinda popanda kupanga makhiristo.Mwa kuwonekera pa chitsulo chimbale mu Kutenthetsa PAD, ndi nucleation likulu aumbike zomwe zimayambitsa njira crystallize mu olimba trihydrate makhiristo kachiwiri.Njira yopangira ma crystallization ndi exothermic, chifukwa chake kutentha kumatulutsa.Kutentha kobisika kwa maphatikizidwe ndi pafupifupi 264-289 kJ/kg.