硫酸锌对镀锌钢板中铬酸盐转化膜检测的影响
Effect of Zinc Sulfate on the Testing of Chromate Conversion Film on the Surface of Galvanized Steel Sheets
摘 要
用电感耦合等离子体原子发射光谱法及分光光度法测定了镀锌钢板表面铬酸盐转化膜中铬(Ⅵ)量.试验中发现硫酸锌的存在严重影响铬(Ⅵ)的测定结果,铬(Ⅵ)的测定值与硫酸锌的共存量成反比关系.根据试验结果,在Yt/s值与硫酸锌存在量之间保持线性关系,如所导出的线性回归方程为Yt/s=98.809 88-0.233 42 X,其中Yt/s为所测得的铬(Ⅵ)量与相应的ZnSO4(以Zn2+计)标准溶液加入量之间的比值.经试验证明:借加入碳酸钠将锌(Ⅱ)沉淀除去,可完全消除硫酸锌对铬(Ⅵ)的测定干扰.
分光光度法
铬(Ⅵ)
硫酸锌
碳酸钠沉淀分离
镀锌钢板
ICP-AES
Spectrophotometry
Chromium(Ⅵ)
Zinc sulfate
Sodium carbonate precipitation
Galvanized steel sheets
Abstract
Contents of Cr(Ⅵ) in the chromate conversion film on the surface of galvanized steel sheets were determined by ICP-AES and spectrophotometry.It was found that the presence of zinc sulfate showed significant effect on the values of content of chromium determined,which were inversely proportional to the amounts of zinc sulfate present.It was found that linear relationship between the values of Yt/s and X (the amounts of zinc sulfate present) was found as shown by the linear regression equation: Yt/s=98.809 88=0.233 42 X where Yt/s are the ratio of values of Cr(Ⅵ) found to be the respective values of standard ZnSO4 (count with Zn2+) solution added.As proved by experimental tests,the interference of ZnSO4 on the determination of Cr(Ⅵ) was effectively eliminated by removing the Zn2+ ion by precipitation with sodium carbonate.
中图分类号 O657
所属栏目 工作简报
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收稿日期 2007/12/12
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备注陈义庆(1971-),男,辽宁鞍山人,硕士,高级工程师,从事彩色涂层钢板生产工艺的研究.
引用该论文: CHEN Yi-qing,XU Cheng-ming,XU Xiao-lian,XIAO Yu,WU Yu-min,GU Ji-hong. Effect of Zinc Sulfate on the Testing of Chromate Conversion Film on the Surface of Galvanized Steel Sheets[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(3): 352～354
陈义庆,徐承明,徐小连,肖宇,武裕民,顾继红. 硫酸锌对镀锌钢板中铬酸盐转化膜检测的影响[J]. 理化检验－化学分册, 2009, 45(3): 352～354
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参考文献
【1】朱立.钢材热镀锌[M].北京:化学工业出版社,2006．
【2】郑怀宇,安茂忠,赖勤志.镀锌层无铬钝化工艺的研究[J].材料保护,2005,38(9):18-21．
【3】张东,周丽娜,安成强,等.铬酸盐转化膜中铬(Ⅳ)和铬(总)的玫瑰桃红褪色光度法测定[J].材料保护,2004,37(11):63．
【4】陈义庆,杨志强,徐承明,等.涂镀钢铁产品发展近况[J].鞍钢技术,2006,3:14-19．
【5】朱立,徐小连.彩色涂层钢板技术[M].北京:化学工艺出版社,2005．
【6】GB/T 9791-2003锌、镉、铝-锌合金和锌-铝合金的铬酸盐转化膜试验方法[S]．
【7】吴纯素.化学转化膜[M].北京:化学工业出版社,1988．
【2】郑怀宇,安茂忠,赖勤志.镀锌层无铬钝化工艺的研究[J].材料保护,2005,38(9):18-21．
【3】张东,周丽娜,安成强,等.铬酸盐转化膜中铬(Ⅳ)和铬(总)的玫瑰桃红褪色光度法测定[J].材料保护,2004,37(11):63．
【4】陈义庆,杨志强,徐承明,等.涂镀钢铁产品发展近况[J].鞍钢技术,2006,3:14-19．
【5】朱立,徐小连.彩色涂层钢板技术[M].北京:化学工艺出版社,2005．
【6】GB/T 9791-2003锌、镉、铝-锌合金和锌-铝合金的铬酸盐转化膜试验方法[S]．
【7】吴纯素.化学转化膜[M].北京:化学工业出版社,1988．
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