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Traditional production methods of lead white flake

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I roughly translated this method as “vinegar & compost” (“stack” Dutch method). Lead leaves are placed on the bottom of terracotta pits with separate bottom compartments to contain vinegar (acetic acid) (about one-third flooded). The lead vessels are then submerged in horse manure and kept in a sealed house. Decomposed horse manure produces heat and CO2. After about 3 months, the acetic acid and carbonic acid vapor react with lead to lead carbonate and lead hydrate 2PbCO3 • Pb (OH) 2 adheres to the lead leaves as a white pulp layer. This pulp is scraped into white flakes, dried, and ground into white powder.

The lead leaves in the rough contain prostitution

Composting

White lead clings on the foil

Lead crust
Dead colors (colored colors) (dead colors):
– For covering large areas of the painting, before drawing details: black mars ■, titanium white, Indian red B, ocherre H, bright Naples yellow, emerald green H , blue Sevres (Sevres blue) H
Glazes:
– Inside or sold in: Alizarin crimson or madder lakeH, gold ocher,
brown raw siennaS, lemon yellow, Indian yellow, land
(terre verte) E, burnt umber ■, raw umber (raw black brown)
, clear white and zinc white.
Transparent color:
– Aureolin (yellow cobalt)
– p Permanent rose (pink)
– I Permanent magenta (purple rose)
– ■ Scarlet lake (bright red)
– ■ Blue cobalt (cobalt blue)
– ■ Ultramarine (dark blue)
– n Viridian (chrome green)
– ■ Light red (red brown)
– ■ Gold ocher (metallic gold)
– ■ Burnt sienna (burnt Sienna brown)
– ■ Burnt umber (burnt black brown)
Opaque:
– Naples yellow (Naples yellow)
– Cadmium yellow light (bright cadmium gold)
– Cadmium yellow (yellow cadmium)
– Cadmium orange (cadmium orange)
– ■ Cadmium red (red cadmium)
– ■ Cadmium red deep (dark cadmium red)
– ■ Cerulean blue (blue)
– ■ Chromium oxide green (green chrome oxide)
– ■ Indian red
– ■ Yellow ocher (earth gold)
– ■ Mars black

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