AMALGAM FOR USE IN FLUORESCENT LAMPS COMPRISING LEAD, TIN, MERCURY TOGETHER WITH ANOTHER OF THE GROUP SILVER, MAGNESIUM, COPPER, NICKEL, GOLD AND PLATINUM

摘要

An amalgam for use in fluorescent lamps comprising lead, tin and mercury together with another metal selected from the groupconsisting of silver, magnesium, copper, gold, platinum and nickel. The amalgam has the characteristic of partial mercury pressure versustemperature as shown by the curve denoted INVENTION. It has a region (A) in which the mercury vapour pressure changes only slowlyover a given temperature range. The temperatures in the region (A) are higher than the corresponding regions of the prior art, and thetemperature range over which vapour pressure changes slowly is a wider range than in the prior art.