搭配旋轉蒸發儀的(de)容(rong)(rong)器在加熱(re)前是好進行(xing)預熱(re)處理(li)的(de),因(yin)為有些容(rong)(rong)器,如玻璃和(he)陶瓷容(rong)(rong)器,驟然受(shou)到(dao)高(gao)溫(wen)(wen)或(huo)低(di)溫(wen)(wen)時,往往因(yin)溫(wen)(wen)升過快和(he)受(shou)熱(re)不均,導致容(rong)(rong)器炸裂(lie),因(yin)此(ci)在實驗開(kai)始之(zhi)前容(rong)(rong)器應進行(xing)預熱(re)處理(li),即將容(rong)(rong)器置于(yu)熱(re)浴物質內,讓(rang)熱(re)浴物質的(de)溫(wen)(wen)度緩(huan)慢升高(gao)到(dao)一定程度,再讓(rang)其緩(huan)慢冷卻(que),從而達到(dao)改善(shan)容(rong)(rong)器熱(re)傳遞性能,使容(rong)(rong)器受(shou)熱(re)均勻的(de)方法。
水(shui)浴鍋就是使用(yong)水(shui)作為(wei)熱(re)浴物質的方法,反(fan)應容(rong)(rong)器至于水(shui)中(zhong)(注意水(shui)不能進入(ru)容(rong)(rong)器)加(jia)熱(re)水(shui)。由于水(shui)溫(wen)在標(biao)準大氣壓下,高為(wei)100℃,所(suo)以水(shui)浴高溫(wen)度為(wei)100℃。水(shui)浴處理容(rong)(rong)器產品的方法是:將反(fan)應容(rong)(rong)器浸(jin)沒在盛(sheng)有水(shui)的浴鍋中(zhong),容(rong)(rong)器不能與浴鍋直接接觸,浴鍋采(cai)用(yong)電加(jia)熱(re)或(huo)其他(ta)加(jia)熱(re)方式,至適當溫(wen)度時(shi)停止(zhi)加(jia)熱(re),待冷卻后取出容(rong)(rong)器即可。
油(you)(you)(you)(you)浴(yu)鍋與(yu)水浴(yu)鍋相似只是(shi)把(ba)水換成導熱油(you)(you)(you)(you),常用的油(you)(you)(you)(you)有豆油(you)(you)(you)(you)、棉籽油(you)(you)(you)(you)等。油(you)(you)(you)(you)浴(yu)高(gao)溫度比水浴(yu)高(gao),一般(ban)在(zai)100℃-250℃之間。油(you)(you)(you)(you)浴(yu)操作方法與(yu)水浴(yu)相同,不過(guo)(guo)進行油(you)(you)(you)(you)浴(yu)操作一定(ding)要(yao)謹慎(shen),防(fang)止(zhi)油(you)(you)(you)(you)外(wai)溢或油(you)(you)(you)(you)浴(yu)升溫過(guo)(guo)高(gao),引起失火,控制旋轉(zhuan)瓶轉(zhuan)速(su)要(yao)緩慢升高(gao),防(fang)止(zhi)油(you)(you)(you)(you)噴濺出來傷到(dao)實(shi)驗人員!關于選擇哪個設備還是(shi)要(yao)看所做的實(shi)驗和(he)效率,同時也(ye)可(ke)以協同技術人員相溝(gou)通或者咨詢我司(si)在(zai)線(xian)客服。