| Old time dyes-Poison Just a little heads up here about a little known fact concerning the old time dyes used in coloring operations in the mid 19th century. The green colors frequently have a rather high arsenic content, were used on fabric,leather, etc.-- and can present a health hazard. Book and photo album covers from this era, if showing a green colored dye look should be treated as potentially hazardous. I am not aware that there has ever been a reported case of toxicity arising from careless handling of objects so treated but there are instances from the mid 19th century documenting deaths and illnesses directly related to these dyes, both among those working with them and those who used items treated with the aforementioned dyes. Again, the green dyes seem to be the ones most "loaded" with a copper/arsenic compound. If handling old albums,books or clothing from this era, wearing gloves and washing them promptly after use, would probably be prudent as well as immediately sweeping up and residue which might become dislodged from the item during examination and handling. Not all green dyes from this era contain arsenic but it might be prudent to take just a little extra care if you ever do have the chance to handle any such items. Tom |