Tuesday, January 25, 2011

Tin pest

Factoid type post: Relatively pure Tin (Sn) deteriorates upon cooling below 13.2C. As this temperature is regularly encountered in the Canadian climate, this must be taken into account when shipping pure Sn. This deterioration is a phase change due to the crystalline structure changing from a cubic to a tetragonal and thus termed an allotropic transformation. It is completely reversible, however as you can see from the video it would certainly severely compromise the structure of anything made from pure tin. Apparently, this was first noticed, in tin church pipe organs in medieval Europe and called Tin pest. It appears to spread as it is an autocatalytic process.


Hearing Aids said...

Superb blog post, I have book marked this internet site so ideally I’ll see much more on this subject in the foreseeable future!

Call Girls Kolkata said...

Such a nice blog you have shared here. Thanks for sharing about this with us.
Please visit Call Girls in Kolkata to know why The Call girls in Kolkata are known for their dusky and fair skin tone and you can take the service from any of them according to your wish.

call girls in Kolkata
Kolkata call girls
call girl services in Kolkata
Kolkata call girl services
call girl agency in Kolkata
Kolkata call girls agency
call girl agencies in Kolkata
Kolkata call girl agencies
independent call girls in Kolkata
independent Kolkata call girls
escorts in Kolkata
Kolkata escorts
independent escorts in Kolkata
independent Kolkata escorts

POOJA said...

If you have come to Hyderabad and you have a Call Girls in Banjara Hills
Call Girls in Hitech City very good business then you will have to spend a
lot of money and that is why you will feel very good in your life.