Prussian blue (redirected from paris blue)

blue (bloo)

1. a color between green and indigo, produced by energy with wavelengths between 420 and 490 nm.

2. a dye or stain with this color.

---

aniline blue  a mixture of the trisulfonates of triphenyl rosaniline and of diphenyl rosaniline.

brilliant cresyl blue  an oxazin dye, usually C15H16N3OCl, used in staining blood.

methylene blue  dark green crystals or crystalline powder with a bronzelike luster; used in the treatment of methemoglobinemia and of cyanide poisoning, and as a bacteriologic stain and an indicator.

Prussian blue  an amorphous blue powder, Fe4[Fe(CN)6]3, used as a stain.

toluidine blue , toluidine blue O the chloride salt or zinc chloride double salt of aminodimethylaminotoluphenazthionium chloride; useful as a stain for demonstrating basophilic and metachromatic substances.

---

Prus·sian blue (prshn)

n.

See Berlin blue.

---

Prussian blue

The common name of potassium ferric hexacyanoferrate, a compound approved in the United States for treatment of thallium poisoning. Prussian blue gets its name from the fact that it was first used by artists in 1704 as a dark blue pigment for oil paints. It has also been used in laundry bluing and fabric printing.

Mentioned in: Heavy Metal Poisoning

---

Prussian blue

[prush′ən]

Etymology: Prussia, Germany; ME, blew

a chemical stain used on microscopic preparations. It demonstrates the presence of copper by developing a bright blue color.

---

Prussian blue,

n.pr a chemical stain used on microscopic preparations. It demonstrates the presence of copper by developing a bright blue color.

---

Prussian blue

ferric ferrocyanide; a dark blue dye, used to demonstrate ferric iron and in the treatment of chronic thallium poisoning.