⑴跟(gen)金(jin)(jin)(jin)屬(shu)(shu)反(fan)(fan)映(ying)(ying)①常溫(wen)狀(zhuang)態，濃(nong)(nong)1硫(liu)酸能使鐵、鋁等金(jin)(jin)(jin)屬(shu)(shu)鈍化(hua)(hua)。②加溫(wen)時(shi)，濃(nong)(nong)1硫(liu)酸能夠(gou)與除金(jin)(jin)(jin)、鉑以外(wai)的(de)(de)全部金(jin)(jin)(jin)屬(shu)(shu)反(fan)(fan)映(ying)(ying)，形成金(jin)(jin)(jin)屬(shu)(shu)硫(liu)酸鹽，自身(shen)一般被(bei)轉變成SO2Cu2H2SO4(濃(nong)(nong))==△==CuSO4SO2↑ 2H2O2Fe6H2SO4(濃(nong)(nong))==△==Fe2(SO4)33SO2↑6H2O在(zai)所述反(fan)(fan)映(ying)(ying)中，硫(liu)酸主要表(biao)現出(chu)了強氧化(hua)(hua)性(xing)和酸性(xing)。⑵跟(gen)非金(jin)(jin)(jin)屬(shu)(shu)反(fan)(fan)映(ying)(ying)熱的(de)(de)濃(nong)(nong)1硫(liu)酸可將(jiang)碳、硫(liu)、磷等非金(jin)(jin)(jin)屬(shu)(shu)氫氧化(hua)(hua)物空氣氧化(hua)(hua)到其態的(de)(de)金(jin)(jin)(jin)屬(shu)(shu)氧化(hua)(hua)物或含氧酸，自身(shen)被(bei)復原為SO2。在(zai)這里類(lei)反(fan)(fan)映(ying)(ying)中，濃(nong)(nong)1硫(liu)酸只主要表(biao)現出(chu)還(huan)原性(xing)。C2H2SO4(濃(nong)(nong))==△==CO2↑2SO2↑2H2OS2H2SO4(濃(nong)(nong))==△==3SO2↑2H2O2P5H2SO4(濃(nong)(nong))==△==2H3PO45SO2↑2H2O

用(yong)以(yi)染(ran)料(liao)(liao)(liao)工(gong)(gong)業(ye)基本上沒有一種染(ran)料(liao)(liao)(liao)（或其(qi)中間(jian)體(ti)）的(de)制(zhi)(zhi)備(bei)不(bu)需(xu)應(ying)用(yong)硫(liu)(liu)(liu)酸。甲酰(xian)胺(an)染(ran)料(liao)(liao)(liao)中間(jian)體(ti)的(de)制(zhi)(zhi)備(bei)必(bi)須(xu)(xu)開展磺(huang)化反應(ying)，染(ran)料(liao)(liao)(liao)中間(jian)體(ti)的(de)制(zhi)(zhi)備(bei)必(bi)須(xu)(xu)開展重氮化反應(ying)，兩者都(dou)需(xu)應(ying)用(yong)很多硫(liu)(liu)(liu)酸或。因此(ci) 一些染(ran)料(liao)(liao)(liao)廠就設立硫(liu)(liu)(liu)酸生(sheng)產車間(jian)，以(yi)相(xiang)互(hu)配合必(bi)須(xu)(xu)。用(yong)以(yi)日用(yong)具(ju)的(de)生(sheng)產制(zhi)(zhi)造(zao)生(sheng)產制(zhi)(zhi)造(zao)金(jin)(jin)屬(shu)切削液必(bi)須(xu)(xu)用(yong)和硫(liu)(liu)(liu)酸。塑膠(jiao)的(de)增(zeng)粘(zhan)劑（如苯二(er)甲酸酐和苯二(er)甲酸酯）、賽璐珞產品需(xu)要的(de)原材料(liao)(liao)(liao)，都(dou)必(bi)須(xu)(xu)硫(liu)(liu)(liu)酸來制(zhi)(zhi)備(bei)。玻璃貼紙、羊皮紙的(de)生(sheng)產制(zhi)(zhi)造(zao)，也(ye)必(bi)須(xu)(xu)應(ying)用(yong)硫(liu)(liu)(liu)酸。除此(ci)之外，工(gong)(gong)業(ye)制(zhi)(zhi)硫(liu)(liu)(liu)酸，印染(ran)工(gong)(gong)業(ye)、塘瓷工(gong)(gong)業(ye)、小五(wu)金(jin)(jin)工(gong)(gong)業(ye)、香皂工(gong)(gong)業(ye)、人工(gong)(gong)合成(cheng)香辛(xin)料(liao)(liao)(liao)工(gong)(gong)業(ye)等生(sheng)產制(zhi)(zhi)造(zao)單(dan)位，也(ye)都(dou)必(bi)須(xu)(xu)應(ying)用(yong)硫(liu)(liu)(liu)酸。

本方式(shi)僅適(shi)用(yong)(yong)估(gu)測(ce)(ce)鹽酸(suan)(suan)(suan)濃(nong)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)應用(yong)(yong)，且只適(shi)合估(gu)測(ce)(ce)鹽酸(suan)(suan)(suan)濃(nong)度(du)(du)(du)(du)(du)(du)低于98%（m/m）的(de)(de)(de)工(gong)(gong)業硫酸(suan)(suan)(suan)。不(bu)能用(yong)(yong)估(gu)測(ce)(ce)值做為(wei)(wei)剖析(xi)測(ce)(ce)量(liang)結果。B.1方式(shi)基本原理(li)用(yong)(yong)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)測(ce)(ce)量(liang)20℃時(shi)鹽酸(suan)(suan)(suan)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)或(huo)在(zai)(zai)工(gong)(gong)作中溫度(du)(du)(du)(du)(du)(du)下測(ce)(ce)量(liang)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)再計(ji)(ji)(ji)算成(cheng)20℃的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)，查詢表，用(yong)(yong)內(nei)插(cha)法(fa)查出來(lai)與密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)相對的(de)(de)(de)鹽酸(suan)(suan)(suan)濃(nong)度(du)(du)(du)(du)(du)(du)。B.2儀器設備密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)（在(zai)(zai)20℃時(shi)校正，標(biao)尺(chi)為(wei)(wei)0.005g/cm3）；夾(jia)層玻(bo)(bo)璃量(liang)筒（容(rong)量(liang)1小為(wei)(wei)500毫(hao)升，直(zhi)徑超過密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)，直(zhi)徑少25mm，高(gao)寬(kuan)(kuan)比超過密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)的(de)(de)(de)浸入(ru)高(gao)寬(kuan)(kuan)比少25mm）；溫度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)（0-50℃，示(shi)(shi)(shi)(shi)值為(wei)(wei)0.1℃）。B.3測(ce)(ce)量(liang)流程(cheng)按B3.1或(huo)B3.2兩種辦理(li)手續開展。B3.1取約500毫(hao)升試(shi)(shi)(shi)樣，放(fang)置(zhi)夾(jia)層玻(bo)(bo)璃量(liang)筒內(nei)，調整量(liang)筒中試(shi)(shi)(shi)樣溫度(du)(du)(du)(du)(du)(du)至20±0.5℃。插(cha)進密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)，待平穩后再度(du)(du)(du)(du)(du)(du)查驗試(shi)(shi)(shi)樣溫度(du)(du)(du)(du)(du)(du)是不(bu)是為(wei)(wei)20±0.5℃，硫酸(suan)(suan)(suan)一般哪里有賣，載(zai)入(ru)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)尺(chi)標(biao)標(biao)示(shi)(shi)(shi)(shi)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)。B3.2取約500毫(hao)升試(shi)(shi)(shi)樣，硫酸(suan)(suan)(suan)廠，放(fang)置(zhi)夾(jia)層玻(bo)(bo)璃量(liang)筒內(nei)，用(yong)(yong)溫度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)測(ce)(ce)量(liang)在(zai)(zai)其中試(shi)(shi)(shi)樣溫度(du)(du)(du)(du)(du)(du)。插(cha)進密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)，待平穩后再度(du)(du)(du)(du)(du)(du)測(ce)(ce)量(liang)試(shi)(shi)(shi)樣溫度(du)(du)(du)(du)(du)(du)，并載(zai)入(ru)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)尺(chi)標(biao)標(biao)示(shi)(shi)(shi)(shi)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)。B3.3估(gu)測(ce)(ce)鹽酸(suan)(suan)(suan)濃(nong)度(du)(du)(du)(du)(du)(du)當按B3.1要(yao)求測(ce)(ce)量(liang)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)時(shi)，依(yi)據密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)標(biao)示(shi)(shi)(shi)(shi)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)，硫酸(suan)(suan)(suan)，由表B2的(de)(de)(de)20℃時(shi)鹽酸(suan)(suan)(suan)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)與濃(nong)度(du)(du)(du)(du)(du)(du)一覽表查得相對的(de)(de)(de)濃(nong)度(du)(du)(du)(du)(du)(du)。當按B3.2要(yao)求測(ce)(ce)量(liang)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)時(shi)，依(yi)據密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)計(ji)(ji)(ji)標(biao)示(shi)(shi)(shi)(shi)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)，按式(shi)（B1）計(ji)(ji)(ji)算成(cheng)20℃時(shi)的(de)(de)(de)密(mi)(mi)(mi)(mi)(mi)(mi)度(du)(du)(du)(du)(du)(du)。