現實生活中有人認為氫氧化鈣屬於中強堿,即弱堿的範圍,也有人認為氫氧化鈣屬於弱堿,具體情況如何,請看以下分析:
氫qing氧yang化hua鈣gai來lai源yuan於yu鈣gai的de水shui反fan應ying,鈣gai是shi一yi種zhong銀yin白bai色se金jin屬shu元yuan素su,屬shu於yu堿jian土tu元yuan素su,性xing質zhi較jiao活huo潑po,在zai金jin屬shu活huo動dong順shun序xu表biao中zhong,其qi活huo性xing僅jin次ci於yu鉀jia,但dan是shi大da於yu鈉na。在zai常chang溫wen情qing況kuang下xia會hui與yu水shui產chan生sheng劇ju烈lie反fan應ying,會hui有you燃ran燒shao現xian象xiang產chan生sheng,也ye會hui和he氧yang氣qi、lvdengfeijinshukuaisufanying。zhengyinweigaiyuansujubeiqiangjinshuxing,yincihuibeirenwei,qiqingyanghuawuhuishiqiangjian,shishishangjinshuqingyanghuawujianxingshihejinshuhuodongshunxuyizhi,yeyouteshujinshu。
物質堿性強弱的分析,弱堿指在水溶液中不會完全電離,H+濃度較高,pH值(zhi)較(jiao)低(di)。如(ru)果(guo)在(zai)水(shui)溶(rong)液(ye)中(zhong)被(bei)完(wan)全(quan)電(dian)離(li)則(ze)屬(shu)於(yu)強(qiang)堿(jian)。其(qi)中(zhong),強(qiang)堿(jian)在(zai)參(can)與(yu)化(hua)學(xue)反(fan)應(ying)時(shi),並(bing)非(fei)堿(jian)性(xing)越(yue)強(qiang),其(qi)參(can)與(yu)化(hua)學(xue)反(fan)應(ying)的(de)能(neng)力(li)就(jiu)會(hui)越(yue)強(qiang),其(qi)具(ju)體(ti)能(neng)力(li)和(he)強(qiang)堿(jian)的(de)濃(nong)度(du)相(xiang)關(guan)聯(lian),在(zai)強(qiang)堿(jian)濃(nong)度(du)較(jiao)小(xiao)的(de)情(qing)況(kuang)下(xia),其(qi)活(huo)性(xing)也(ye)會(hui)很(hen)低(di)。比(bi)如(ru)氫(qing)氧(yang)化(hua)鈣(gai),其(qi)堿(jian)性(xing)是(shi)大(da)於(yu)氫(qing)氧(yang)化(hua)鈉(na)的(de),但(dan)是(shi)其(qi)水(shui)溶(rong)液(ye)的(de)濃(nong)度(du)要(yao)遠(yuan)遠(yuan)低(di)於(yu)氫(qing)氧(yang)化(hua)鈣(gai),那(na)麼(me)在(zai)反(fan)應(ying)時(shi),氫(qing)氧(yang)化(hua)鈣(gai)的(de)活(huo)性(xing)就(jiu)會(hui)低(di)於(yu)氫(qing)氧(yang)化(hua)鈣(gai)鈉(na)。活(huo)性(xing)的(de)高(gao)低(di)並(bing)不(bu)隻(zhi)在(zai)於(yu)堿(jian)性(xing)的(de)強(qiang)弱(ruo),同(tong)時(shi)還(hai)決(jue)定(ding)於(yu)物(wu)質(zhi)的(de)濃(nong)度(du)和(he)溶(rong)解(jie)度(du),在(zai)這(zhe)裏(li)我(wo)們(men)就(jiu)會(hui)接(jie)觸(chu)到(dao)濃(nong)度(du)及(ji)溶(rong)解(jie)度(du)的(de)問(wen)題(ti),具(ju)體(ti)情(qing)況(kuang)請(qing)繼(ji)續(xu)關(guan)注(zhu)豫(yu)暉(hui)動(dong)態(tai):http://f1979.cn/news