Older designs used mercury amalgam amounting to about 1% of the weight of a button cell, to prevent zinc corrosion.

Finally, a mercury amalgam was laid over the surface; this created further stresses and preferential buckling.

Dentists have used gold for filling cavities (before mercury amalgam became available), for crowns, and for other purposes.

The patented process, which involved a mercury amalgam, had to be discontinued because the mercury was damaging the workers' health.

I believe that there is a movement away from mercury amalgams for fillings by dentists as alternatives become available.

When introduced in the late 1960s, alkaline batteries contained a small amount of toxic mercury amalgam to control side reactions at the zinc cathode.

The lamp used a folded T4 tube, stable tri-color phosphors, and a mercury amalgam.

Some that use a mercury amalgam can take up to three minutes to reach full output.

Gallium alloys have been evaluated as substitutes for mercury dental amalgams, but these materials have yet to see wide acceptance.

In 2008, Denmark also banned dental mercury amalgam.