iron blue


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Related to iron blue: steel blue

iron blue

[′ī·ərn ′blü]
(inorganic chemistry)
Ferric ferrocyanide used as blue pigment by the paint industry for permanent body and trim paints; also used in blue ink, in paper dyeing, and as a fertilizer ingredient.

prussian blue

1. A class of deep blue pigments of ferric-ferrocyanides; tends to fade in light tints; reactive with alkalies; ferrocyanide blue.
2. Any color produced with Prussian blue, e.g., Chinese blue.
References in periodicals archive ?
"Iron blue is still cheaper than the phthalo blue," said Mr.
Flies have been tied while the Six Nations was on with early-season terrestrials like Hawthorns (Bibios n Hoppers) or the first of the Upwing Olives (Iron Blue Dun), plus a few purchases from the store for some neater finishes and filling in the gaps.
Some of these have wonderful names including minutest diving beetle, iron blue mayfly, distinguished jumper spider, wormwood moonshiner, fancy-legged fly and English assassin fly.
Degussa has been finding that sales of an iron blue pigment to makers of publication gravure inks have been declining in Europe because Asian producers have been pushing down the price of a rival phthalo blue.