cerous

[ seer-uhs ]

adjective

, Chemistry.

1. containing trivalent cerium.

cerous

/ ˈsɪərəs /

adjective

1. of or containing cerium in the trivalent state

Word History and Origins

Origin of cerous¹

First recorded in 1860–65; cer(ium) + -ous

Word History and Origins

Origin of cerous¹

C19: from cerium + -ous

Example Sentences

Cerium compounds may be recognized by the red precipitate of ceric hydroxide, which is formed when sodium hypochlorite is added to a colourless cerous salt.

From Project Gutenberg

Compounds of cerium with volatile acids yield dioxide on ignition; and this, on solution in hydrochloric acid, yields cerous chloride and chlorine.

From Project Gutenberg

A hydrated chloride of composition 2CeCl3�15H2O is also known, and is obtained when a solution of cerous oxide in hydrochloric acid is evaporated over sulphuric acid.

From Project Gutenberg

Double salts of cerous chloride with stannic chloride, mercuric chloride, and platinic chloride are also known.

From Project Gutenberg

By the addition of caustic soda to cerous salts, a white precipitate of cerous hydroxide is formed.

From Project Gutenberg