Please take precautions:
Subject: Summer Safety Alert
Methamphetamine cooks are buying propane tanks from the exchanges at
Wal-Mart, Kroger, and emptying them of the propane gas. Then they fill the
propane tanks with anhydrous ammonia, which they now have a recipe to cook
Methamphetamine. After they are finished with the propane tanks, they
return them to the store. The stores refill the tanks with propane gas,
unknowing to them the improper substance that was inserted in the tanks and
sell them to their consumers. Anhydrous ammonia is very corrosive and
weakens the structure of the tank. It can be very dangerous when mixed with
propane gas and hooked up to a grill, recreation vehicle, etc.
You should inspect the propane tank for any blue or greenish residue around
the valve areas. If there are evidences of these substances, do not
purchase the propane tank and advise the vendor of your findings.
The information was researched, and you should check out the following
website for more details. They also have pictures for you to view.