Subject: Historic antifreeze
Alan J. Hawk <alan.hawk [at] us__army__mil> writes >Jane Hamill <j.hamill [at] scott__aq> writes > >>I am working on a container of unidentified liquid, with a label 'a >>little of this amongst the water helps to prevent freezing' ... > >Perhaps it was an antifreeze for drinking water. No. Drinking water would not have antifreeze put in it. Aside from the fact that most antifreezes are poisonous or have negative health effects, including salt and alcohol, in those environments one does not drink sub-zero temperature liquids. That would cause freezing of the esophagus and cool the internal body temperature dangerously. All peoples living out in subzero environments melt snow and ice for their drinking water, and drink it as hot tea or soup. One only eats snow if desperate and doesn't have access to fire. People of European ancestry of that era would drink alcohol to warm up, preferably as a hot toddy, but alcohol provides a false warmth. It causes the peripheral blood supply to open up, making the extremities and face feel warm, but at the expense of cooling the body core, thus making hypothermia more likely. People of the day didn't realize that, but they wouldn't have added alcohol to drinking water, they would just have had a shot of rum when they felt like it. Valerie Tomlinson Conservator Auckland Museum Tamaki Paenga Hira The Domain Private Bag 92018 Auckland 1142, New Zealand +64 9 306 7068 *** Conservation DistList Instance 24:51 Distributed: Thursday, May 12, 2011 Message Id: cdl-24-51-003 ***Received on Friday, 6 May, 2011