显影液的成分 亚硫酸盐的作用是做什么的!

溶液的质量=272mL×1.25g/cm³=340g
溶液中溶质硝酸银的质量=340g×10%=34g
设至少加入x克铁屑
Fe+2AgNO₃═Fe（NO₃）₂+2Ag
56 340
x34g

56
340＝
x
34g x=5.6g
答：溶液质量为340g；
至少加入5.6克铁屑才能将硝酸银溶液中的银完全置换出来．

The hot quick type CTP version developer and it the other kit try
The CTP technique appear in last century 80's,development till today doubtless is progress a quickest realm.But the CTP version material be doubtless is should technique of core part.Hot the quick CTP version material become development thus most quick of CTP version material,but hot constitute of quick CTP version material the composition be numerous point for study,but the local research still have no abroad research thorough,but the last few years domestic had very obvious of research effect.The hot quick CTP version is basic to is divided into the sun diagram hot quick CTP version and Yin diagram hot quick CTP version.The become of hot quick CTP version material is like basic principle BE:When laser etc.function empress,the version material surface composition would occurrence variety,thus would creation a kind of acidity material,so developer of prepare have to is a kind of alkalescence aqua,be developer processing,so acidity material then can with alkalescence material occurrence moderate reaction,reaction the district appear a diagram text effect.Have already appeared currently a lot of don't need a processing type hot quick CTP version,but this text still an introduction want processing type.
The Yin diagram sun diagram develope

碧云天有现成的 直接加水就行（需要加热助溶）价钱还可以.具体配方还真是不知道.

去胶液主要是有机溶剂.显影液的主要成分是一些还原剂,例如对苯二酚、米吐尔、菲尼酮等,另外还有亚硫酸钠等保护剂.

主要成分有：硫酸、硝酸及苯、甲醇、卤化银等硼酸、对苯二酚.