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(Ref at Boston Fine Arts); alkannan: CAS 517-90-8 alkannin: CAS 23444-65-1-58-7 Bengal Lac; Cake Lac; Caked Lac; C. Natural Red 25; Gomme Laque; Grained Lac; Gum Lac; Gummilack; Indian Lake; Kadi lakh; Lac Dye [KP.p | NP.p]; Lac; Laca; Lacca; Lac Lake; Lakka; Lic-Lac; Natural Lacaic Acid; Natural Red 25; Seed-lac; Rangbatti Laked Resinous extraction the Rattan palm tree, Daemonorps Draco; Raman spectroscopy (Ref Spectrochimica Acta); (Ref: Raman spectroscopic analysis of dragon’s blood resins, Edwards, Oliveira, Prendergast, c 2003) Dracaena Cinnabari; Draccorubin (CI 75200) and Dracorhodin (CI 75210)]; Bright Red [CL]; Cadmium Red Purple Light Substitute [SE.p]; Chinese Red Vermilion Hue; Chinese Vermilion Substitute [SE.p]; C. Pigment Red 3; Cinnabar Red [EP.p]; Cinnabar Red Deep (hue) [LK]; Eljon Red; Eljon Scarlet; Geranium Lake [MR.o]; Hansa Red; Hansa Scarlet RNC; Harrison Red; Helio Red; Helio Fast Red; Helios Red [SE.p]; Imitation Vermilion; Kenalake Scarlet; Lithol Red; Madder Lake (hue) [PF.w]; Monoazo Red; Naphthol Red; Permanent Intense Red [SE.t]; Pigment Red 3; Poster Red [AS]; Scarlet; Scarlet Lake [DR]; Blazing Red; Cadmium Red Light Substitute [SE.p]; Chinese Red Vermilion Hue; Chlorinated Para Red; C. Pigment Red 4; Cinnabar Red Light (hue) [LK]; D&C Red No 36 308260; FAST RED R; Fire Red [CL]; Flaming Red; French Vermilion Red (hue) [SE.os]; French Vermilion (hue) [SE.os]; Hansa Red R; Magenta; Permanent Red R; Pigment Red 4; Red Orange; Signal Red; Tangerine [DR.g]; Vermilion (hue) [MR.o | SCH | SE.t]; Vermilion Red (hue); ]; Permanent Red FRLL [KP.p]; Permanent Scarlet; Pigment Red 9; Poppy Red [AS]; Red Vermilion (hue) [LB.av]; Scarlet [HO.ag]; Ton Rouge de Cadmium Clair [LB.o]; Vermillion (hue) [LK]; Vermilion Hue [DR.a. **]; Permanent Carmine [MA.o.o(artis).p]; Permanent Crimson; Permanent Rose Madder [SI.p]; Permanent Violet; Pigment Red 83; Red Scarlet; Rose Doré (Alizarin); Rose Madder [BX.o.w | HO.w | SH.w | WNAlizarin or 1,2-dihydroxyanthraquinone is an synthetic organic compound with formula C14H8O4 that is historically important as a prominent dye, originally derived from the roots of plants of the madder genus; (Ref Alizarin Crimson at Boston Fine Arts); Alizarin (wikipedia Ref); Alizarin, synthetic (Ref at Boston Fine Arts CAMEO); Lake of Dihydroxy-anthraqutone or Anthraquinone Lake (Alizarin Crimson) is a synthetic form of NR9 (without Purpurin) precipitated with an inert binder, usually a metallic salt.; (lake pigments wikipedia Ref); Color depends on metal the lake is fixed on: Unique Hue; PR 177, PR 179 or PR 264 are similar, and more permanent substitutes, but not identical.; * Color depends on method of manufacture and the metal salt the Anthraquinone dye is fixed on.
Tin salts giving more yellowish shades in artist pigments. **Utrecht's Artist Watercolor "Permanent Alizarin Crimson" is PR83 according to the web site, but is PR177 according to the MSDS sheet.
(Reference from The Century Dictionary and Cyclopedia; Whitney, Smith, 191.
pg.4628);: The process of grinding a substance with a muller on a slab of porphyry or other hard stone. (Reference from The Century Dictionary and Cyclopedia; Whitney, Smith, c1911.
(Mineral Reference); According to the Pigment Compendium, 2008 Cinnabar based pigments only darken when they contain traces of chlorine or exposed to halogens.
Also "blackening and fading in vermilion are always due to adulteration ‘by mixture with lake, carmine or by red or orange lead’." (Ref Pigment Compendium p.383); (Picture at mindat.org); Natural mineral said to be more stable than synthetic vermilion (Natural Pigments Ref).
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