platinous

[plat-n-uhs]

adjective

Chemistry.

1. containing bivalent platinum.

platinous

/ ˈplætɪnəs /

adjective

1. of or containing platinum, esp in the divalent state

Word History and Origins

Origin of platinous¹

First recorded in 1835–45; platin(um) + -ous

Example Sentences

A fire proof ink is made of platinous chloride and oil of lavender, mixed for writing with India ink and gum, and for printing with lampblack and varnish.

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Of especial note are the curious compounds formed by the union of carbon monoxide with platinous chloride, discovered by Paul Sch�tzenberger and subsequently investigated by F.B.

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In these new processes to the sensitizing solution is added the alkaline oxalate, which effects the reduction of the platinous salt during the exposure to light.

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This substance on evaporation remains as a brownish red deliquescent mass; on drying at 300° C. it is converted into platinous chloride, PtCl2, and becomes insoluble, and at a higher temperature it is converted into platinum.

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The paper for the black prints by the hot bath process is washed with a mixture of potassic platinous chloride and ferric oxalate, the proportion being about sixty grains of the platinum salt to one ounce of the iron solution.

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