Magnesium [7439-95-41 M 24.3, m 651°, b llOOo, d 1.739. slowly oxidises in moist
air and tarnishes. If dark in colour do not use. Shiny solid should be degreased by washing with dry Et20, dry
and keep in a N2 atmosphere. It can be activated by adding a crystal of I2 in the Et20 before drying and storing. |