cuchugold
Well-known member
- Joined
- Oct 25, 2017
- Messages
- 243
Early 19th century notes on platinum adventures of Tennant the chemist, Wollaston the doctor, and Johnson the smuggler. They made malleable platinum without melting, and kept the trade secret for more than 20 years!. Johnson's son became the founder of today's Johnson Matthey & Co!.
http://www.technology.matthey.com/article/22/3/100-106/
http://www.technology.matthey.com/article/22/3/100-106/