Verditer

Kupfer-asche, /. copper scale, -azetat, n. copper acetate, -azetylen, n. copper acetylide. -bad, n. copper bath, -barre, /. copper bar copper ingot, -belze, /. copper mordant, -blatt, n. copper foil, -blau, n. blue verditer, azurite. -blech, n. sheet copper, copper foil, -blel, n. copper-lead alloy, -bleiglanz, m. Min.) cuproplumbite. -bleivitriol, m. linarite. -blende, /. tennantite. -blute, / copper bloom (capillary cuprite), -braim, n. tils ore (earthy ferruginous cuprite),... 

Copper appeared generally distributed at about 2 /xg/cm2, probably from the processing water or equipment. Copper was the blue colorant in the French papers, perhaps Blue Verditer, 2CuC03 Cu(OH)2 (8). Copper was present at the 10-/xg/cm2 level in Amies pink, blue, cream, and white papers, but was absent in his yellow paper. 

Gettens, R. J., West Fitzhugh, E., I. Azurite and Blue Verditer, Stud,... 

Blue verditer n. Basic copper carbonate. Syn azurite. 

Copper group Hexacyanoferrate group Chalk Zinc hexacyanofer-rate(II) Zinc oxide Blue verditer Haarlem blue Paris blue Prussian blue... 

Harley indicates that the English term bice was, in the seventeenth century at least, used exclusively in coimection with azurite in later centuries, when azurite was uncommon, the term was applied to other blue pigments. The synthetic analogue (copper carbonate hydroxide, azurite type, q.v.) is generally called bine verditer. 

Copper carbonates group Azurite Smalt Blue verditer, Verditer Dossie (1764) 1-95 Field (1835) Harley (1982) 49 Thon n (1935) 415, n.7... 

Copper carbonates group Azurite Blue verditer Copper carbonate hydroxide, azurite type Lazurite Ultramarine ash Ashes blue Bremen blue Lapis lazuli Sanders blue... 

The term verditer appears to have only come into use in the late seventeenth century, whereas before that time there were other cuprammoniinn blues foimd in recipes but only intended for small scale or individual production. The term verditer came about when large scale production as an industrial by-product of silver refining occurred. Recipes from before 1600 differ from verditer in chemical composition and manufacture (Harley, 1982). 

The pigment was paler than natural azurite, but otherwise its stabdity and other properties are identical. At the end of the nineteenth century, Terry (1893) writes of blue verditer being d y blue and not very durable... used in water colour painting, closely resembles Bremen Blue in composition and manufacture pre-... 

Copper group Copper oxides and hydroxides group Azurite Blue ashes-. Blue verditer. Copper blue-, Italian blue-. Lime blue Bersch (1901) 226 Colour Index (1971) Heaton (1928) 164 Scott (2002) Zerr Rubencamp (1906/1908) 156-162... 

Copper carbonate hydroxide, malachite type Malachite Emerald green Green verditer Scheele s green... 

Chromatex group Copper arsenite group Atacamite Barium chro-mate(VI) Baryte Bismuth chromate Copper tartrate Lead chromate Acetate green Bremen blue Chrome yellow Green cinnabar Green verditer Prussian blue... 

A French term covering both natural and synthetic copper carbonate blues probably the basis of the English term sanders blue (. v.) by corruption. The French drew a distinction between the natural (azurite, q.v.) and synthetic (blue verditer, q.v.) form by sometimes calling the manufactured form cendres bleues d Angleterre, as this was an English speciahsm (Harley, 1982). 

Copper carbonates group Azurite Copper carbonate hydroxide, rite type Blue verditer Harley (1982) 50... 

Church (1901) included a description of chessylite, which he states was the same as azurite and blue verditer (qq.v). It is an alternative mineral name for azurite (a copper carbonate hydroxide mineral), occurring, among other places, at Chessy in France. 

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