焦亞(ya)硫(liu)酸鈉(na)(na)可(ke)以(yi)(yi)(yi)(yi)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)各行各業(ye)(ye)，可(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)醫橡膠工(gong)(gong)(gong)業(ye)(ye)，印(yin)染(ran)工(gong)(gong)(gong)業(ye)(ye)，97%焦亞(ya)硫(liu)酸鈉(na)(na)皮(pi)革(ge)(ge)，制革(ge)(ge)工(gong)(gong)(gong)業(ye)(ye)，化學工(gong)(gong)(gong)業(ye)(ye)，感光工(gong)(gong)(gong)業(ye)(ye)，食品工(gong)(gong)(gong)業(ye)(ye)，焦亞(ya)硫(liu)酸鈉(na)(na)可(ke)以(yi)(yi)(yi)(yi)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)織物(wu)及有(you)機(ji)物(wu)的漂白，可(ke)以(yi)(yi)(yi)(yi)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)印(yin)染(ran)的媒染(ran)劑。焦亞(ya)硫(liu)酸鈉(na)(na)在橡膠工(gong)(gong)(gong)業(ye)(ye)可(ke)以(yi)(yi)(yi)(yi)用(yong)(yong)(yong)(yong)(yong)作(zuo)凝固劑，印(yin)染(ran)工(gong)(gong)(gong)業(ye)(ye)用(yong)(yong)(yong)(yong)(yong)作(zuo)棉布漂白后的脫氯劑、棉布煮煉助劑，97%焦亞(ya)硫(liu)酸鈉(na)(na)漂白劑，食品保存(cun)、釀(niang)造和飲料用(yong)(yong)(yong)(yong)(yong)的防腐劑，焦亞(ya)硫(liu)酸鈉(na)(na)在制革(ge)(ge)工(gong)(gong)(gong)業(ye)(ye)可(ke)以(yi)(yi)(yi)(yi)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)皮(pi)革(ge)(ge)處(chu)理，能使(shi)皮(pi)革(ge)(ge)柔軟、豐滿、堅韌，具(ju)有(you)防水、抗(kang)折、耐磨等性能，焦亞(ya)硫(liu)酸鈉(na)(na)在化學工(gong)(gong)(gong)業(ye)(ye)照(zhao)相用(yong)(yong)(yong)(yong)(yong)作(zuo)顯影劑等

4.在保持溫(wen)度為(wei)30℃左(zuo)右的(de)(de)條件下，襄陽97%焦(jiao)亞硫(liu)酸鈉(na)(na)，向30%的(de)(de)碳(tan)酸鈉(na)(na)溶(rong)液中通(tong)入(ru)SO2氣(qi)(qi)體，直到有(you)強烈的(de)(de)SO2氣(qi)(qi)味為(wei)止。將(jiang)此(ci)溶(rong)液放(fang)入(ru)干(gan)燥劑(ji)的(de)(de)干(gan)燥器中，保持溫(wen)度在25℃以上，97%焦(jiao)亞硫(liu)酸鈉(na)(na)防(fang)腐劑(ji)，靜置至結晶析出。抽濾并用乙(yi)醇洗滌結晶，并在氮氣(qi)(qi)或氫(qing)氣(qi)(qi)流中干(gan)燥，隔絕空氣(qi)(qi)保存(cun)。

5.采用(yong)吸收法。以(yi)食品級(ji)純堿溶液經(jing)精制(zhi)除雜、過濾、干燥(zao)，制(zhi)得食用(yong)級(ji)焦亞硫酸鈉。

焦亞硫(liu)酸鈉(na)與色素(su)同使用會不會褪色

答：焦亞硫酸鈉不能與(yu)帶有色(se)基的顯色(se)染(ran)料(liao)類色(se)素(su)一同使用，會(hui)導(dao)致(zhi)染(ran)料(liao)色(se)基被漂白變得黯(an)淡褪(tun)色(se)（堿性(xing)、酸性(xing)和直接(jie)水溶(rong)性(xing)色(se)素(su)以(yi)及(ji)花青素(su)、梔子色(se)素(su)等所有天然(ran)食用色(se)素(su)都不可以(yi)配伍(wu)），但(dan)是它可以(yi)與(yu)無機(ji)(ji)顏料(liao)或者(zhe)有機(ji)(ji)顏料(liao)比(bi)如(ru)酞(tai)青藍B的水溶(rong)液良好.