Prussian brown

BerL Ber., abbrev. (Berliner Berichte) Berickte der deutscken chemiachen Gesellscka/t. Berliner-blau, n. Berlin blue, Prussian blue, -blaus ure, /. hydrocyanic acid, -braun, n. Prussian brown, -griin, n. Prussian green, -rot, n. Berlin red (a red lake color), -saure,/. prussic acid, -weiss, n. a kind of white lead. Bernstein, m. amber. — schwarzer —, jet. Bernstein-, amber succinic, succinyl, succino-. -alaun, m. aluminous amber, -aldehyd, n. succinaldehyde. bemateinartig, a. amber-like. 

Preussisch-blau, n. Prussian blue, -braim, n. Prussian brown. 

PROTOCHLORURE d lODE (French) (7790-99-0) see iodine chloride. PRUSSIAN BROWN (1309-37-1) see iron oxide. 

PRUSSIAN BROWN (1309-37-1) Violent reactions with powdered aluminum (thermite reaction), hydrogen peroxide, calcium disilicide (thermite reaction), ethylene oxide (may... 

RED BURNT SIENNA BURNT UMBER CALCOTONERED COLCOTHAR COLLOIDAL FERRIC OXIDE FERRIC OXIDE INDIAN RED IRON(in) OXIDE IRON OXIDE RED IRON SESQUIOXIDE JEWELER S ROUGE MARS BROWN MARS RED NATURAL IRON OXIDES NATURAL RED OXIDE OCHRE PRUSSIAN BROWN RED IRON OXIDE RED OCHRE ROUGE RUBIGO SIENNA SYNTHETIC IRON OXIDE VENETIAN RED VITRIOL RED YELLOW OXIDE OF IRON... 

Prussian brown n. Brown-colored, iron oxide pigment, obtained as a decomposition product of Prussian blue subjected to heat. 

An alternate name given for Prussian brown (. v.) by Zerr and Riibencamp (1906). 

Synonym for Prussian brown, a form of calcined Prussian bine (Mayer, 1991). 

Copper hexacyanofenate(II) Prussian brown Prussian blue Bouvier (1827) 79 0 Cariyle (2001) 199, 467 Osborn (1845) 60 Salter (1869) 408 Terry (1893) 26... 

Salter (1869) states that this should be prepared by calcining an aluminous Prussian blue q.v.) or, alternately, treating an aliuni-nous ferrocyanide of peroxide of iron with an alkali . Later, he also cites Bouvier (1827) under what he terms French Prussian brown this was produced by charring a moderately dark Prussian blue, neither one too intense, which gives a heavy and opaque brownish-red, nor one too aluminous and bright, which yields a feeble and yellowish tint . Church (1901) indicates that the Prussian blue used as a starting material should contain no potassium and that his so-called insoluble form of Prussian blue was the only one which yields, when roasted, a perfectly satisfactory Prussian brown . His directions are that small hazel-nut size pieces of Prussian blue should be thrown on to an iron plate maintained at red heat until the fragment was the required colour. 

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