文物保护与考古科学2024，Vol.36Issue(6)：79-90,12.DOI:10.16334/j.cnki.cn31-1652/k.20231103069
辽宁盖州青石岭山城出土铁器的脱盐保护处理研究
Study on the desalination conservation of iron artifacts excavated at Qingshiling Mountain City,Gaizhou,Liaoning Province
张红燕 1杨小林 2王飞峰 1黄希 1韩化蕊 1郭正臣 1张惠 1李汉召1
作者信息
- 1. 中国社会科学院考古研究所,北京 102445
- 2. 中国国家博物馆,北京 100006
- 折叠
摘要
Abstract
The iron artifacts unearthed from Qingshiling Mountain City in Gaizhou,Liaoning Province,are severely damaged and contained a large amount of harmful rust.During the process of desalination of ironware using alkaline solutions,the pH value and chloride ion concentration of the soaking solution were dynamically tracked and monitored throughout the entire process to guide the soaking time and total desalination times.During the monitoring of desalination process,it was found:that as chloride ions were released,the pH value decreased;especially in the early stages of desalination,as a large amount of chloride ions were dissolved,the pH value rapidly decreased,and the soaking solution sometimes changed from alkaline to acidic in a short period of time;and that to avoid corrosion of ironware in the acidic environment,it was necessary to monitor the pH value of the desalination solution during the desalination process and replace it with a new solution in a timely manner.We have noted some practical precautions to be taken when using the NaOH solution desalination method,in order to achieve the goal of removing as many harmful chloride ions as possible in order to effectively conserve the ironware.In practice,it has been verified that using sufficient desalination cycles and other appropriate methods,the NaOH solution method could achieve almost complete conversion of β-FeOOH and almost complete removal of the chloride ion.关键词
铁质文物/四方纤铁矿/氯离子/碱液脱盐Key words
Iron artifact/β-FeOOH/Chloride ion/Alkali solution desalination分类
社会科学引用本文复制引用
张红燕,杨小林,王飞峰,黄希,韩化蕊,郭正臣,张惠,李汉召..辽宁盖州青石岭山城出土铁器的脱盐保护处理研究[J].文物保护与考古科学,2024,36(6):79-90,12.
