Control of leachable mercury in fluorescent lamps by iron additi

Details Control of leachable mercury in fluorescent lamps by iron additi Control of leachable mercury in fluorescent lamps by iron additi

1997-12-12

1999-12-07

Patel, Vip

Electric lamp and discharge devices

Having vapor generating material

Mercury vapor material

445 2, 313567, H01J 6100

Patent

active

059989270

ABSTRACT:
The formation of leachable mercury upon disposal or during TCLP testing of mercury vapor discharge lamps is substantially prevented by maintaining the amount of elemental iron at a level which is at least about 100 to about 1000 milligrams per kilogram of the total weight of lamp material.

REFERENCES:
patent: 4929869 (1990-05-01), Yonezawa et al.
patent: 5229686 (1993-07-01), Fowler et al.
patent: 5229687 (1993-07-01), Fowler et al.
patent: 5754002 (1998-05-01), Haitko et al.
patent: 5777434 (1998-07-01), Dietrich et al.
patent: 5821682 (1998-10-01), Foust et al.
patent: 5846109 (1998-12-01), Foust et al.

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