Word:

Cobaltous chloride

a crystalline compound, CoCl2, of a pale rose color when hydrous, blue when dehydrated. Its solution is used for a sympathetic ink, the writing being nearly colorless when dried in the air, owing to absorbed moisture, and becoming bright blue when warmed.

See also: Cobaltous

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Cobaea
cobalamin
Cobalt
cobalt 60
cobalt bloom
cobalt blue
Cobalt crust
Cobalt glance
Cobalt green
cobalt ultramarine
Cobalt yellow
Cobaltic
Cobaltiferous
Cobaltine
cobaltite
Cobaltous
-- Cobaltous chloride --
cobber
Cobbing
Cobble
cobble together
cobble up
Cobbler
Cobbler fish
cobbler's last
cobblers
cobbles
Cobblestone
cobbling
Cobby
Cobelligerent
Cobia
Cobiron
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