THE DETECTION OF METALLIC MORDANTS BY ENERGY DISPERSIVE X-RAY SPECTROMETRY
R.J. Koestler, N. Indictor, & R. Sheryll
- Metallic elements detected on all colored silk fibers of the group of textiles studied were calcium, aluminum, iron, silicon, potassium.
- Undyed silk showed the absence of aluminum and iron.
- The metallic elements chromium, tin, copper, and zinc were absent from the silk fibers of the group of textiles studied.
- Judgments as to the presence or absence of metallic elements as mordants were made by using sulfur as an internal standard.
- This group of samples indicated a larger weight percent calcium than a group of modern undyed mordanted samples studied previously.
- This group of samples indicated a lower weight percent sulfur than a group of modern undyed mordanted samples studied previously.
- The data obtained do not permit the dating of the textiles; but the elements detected by EDS suggest mordanting materials consistent with those found on ancient textiles.