Sodium acetate
Bayani
▶Sodium acetate (CH3COONa) shine gishirin sodium na acetic acid.Ya bayyana a matsayin gishiri marar launi tare da aikace-aikace da yawa.A cikin masana'antu, ana iya amfani da shi a masana'antar yadi don kawar da rafukan sharar gida na sulfuric acid kuma azaman mai ɗaukar hoto akan amfani da dyes aniline.A cikin masana'antar siminti, ana iya amfani dashi azaman simintin siminti don rage lalacewar ruwa.A cikin abinci, ana iya amfani dashi azaman kayan yaji.Hakanan za'a iya amfani da shi azaman maganin buffer a cikin lab.Bugu da kari, ana kuma amfani da shi wajen dumama matattarar dumama, kayan dumama hannu da kankara mai zafi.Don amfani da dakin gwaje-gwaje, ana iya samar da shi ta hanyar amsawa tsakanin acetate tare da sodium carbonate, sodium bicarbonate da sodium hydroxide.A cikin masana'antu, an shirya shi daga glacial acetic acid da sodium hydroxide.
▶Kayan Kemikal
Gishiri mai anhydrous kauri ne mara launi;yawa 1.528 g / cm3;narke a 324 ° C;mai narkewa sosai a cikin ruwa;matsakaici mai narkewa a cikin ethanol.Trihydrate crystalline mara launi yana da nauyin 1.45 g / cm3;bazuwa a 58 ° C;yana narkewa sosai a cikin ruwa;pH na 0.1M mai ruwa bayani shine 8.9;matsakaici mai narkewa a cikin ethanol, 5.3 g / 100mL.
▶ Adana da Sufuri
Ya kamata a adana shi a cikin busasshen ajiya da kuma ajiyar iska, a kiyaye shi daga zafi da danshi lokacin sufuri, a sauke shi da kulawa don guje wa lalacewa.Bugu da ƙari, dole ne a adana shi daban daga abubuwa masu guba.
Aikace-aikace
▶ Masana'antu
Ana amfani da sodium acetate a cikin masana'antar yadi don kawar da rafukan sharar gida na sulfuric acid kuma a matsayin mai ɗaukar hoto yayin amfani da dyes aniline.Har ila yau, wakili ne na pickling a cikin tanning chrome kuma yana taimakawa wajen hana vulcanization na chloroprene a samar da roba na roba.A cikin sarrafa auduga don ƙwanƙwasa auduga, ana amfani da sodium acetate don kawar da ginan wutar lantarki.Hakanan ana amfani dashi azaman "zafi-kankara" a cikin dumin hannu.
▶Kwamfuta tsawon rai
Ana amfani da Sodium acetate don rage lalacewar ruwa ga siminti ta yin aiki azaman simintin siminti, yayin da kuma kasancewa mara kyau na muhalli kuma mai arha fiye da madadin epoxy da aka saba amfani da shi don rufe kankare daga ratsa ruwa.
▶ Maganin buffer
A matsayin tushen haɗin gwiwar acetic acid, maganin sodium acetate da acetic acid na iya yin aiki a matsayin mai ɗaukar hoto don kiyaye matakin pH na yau da kullun.Wannan yana da amfani musamman a aikace-aikacen sinadarai inda halayen pH suka dogara a cikin kewayon acidic kaɗan (pH 4-6).Ana kuma amfani da shi a cikin mabukaci DUMINSU ko masu dumin hannu kuma ana amfani dashi a cikin zafi mai zafi.Lokacin da aka zafi da su zuwa 100 ° C, kuma daga baya a bar su suyi sanyi, maganin ruwa ya zama mafi girma.Wannan bayani yana da ikon yin sanyi sosai zuwa zafin jiki ba tare da samar da lu'ulu'u ba.Ta danna diski na ƙarfe a cikin kushin dumama, an kafa cibiyar nucleation wanda ke haifar da maganin sake yin crystallize cikin lu'ulu'u masu ƙarfi na trihydrate.Tsarin haɗin gwiwa na crystallization shine exothermic, saboda haka ana fitar da zafi.Matsakaicin zafi na fusion yana kusan 264-289 kJ/kg.