Términos

A bright blue-green gel or light blue powder. Cupric hydroxide will decompose with time or heat to form black copper oxide. It is used as a source for copper salts and as a mordant in dyeing textiles. Copper hydroxide reacts with Ammonium hydroxide to form the cuprammonium that is capable of dissolving Cellulose. It is used in the manufacture of rayon. Copper hydroxide has also been reported as a component in marine corrosion crusts on copper alloys.

Refers to very thin hammered or rolled copper sheets (typically about 0.1 micrometers) used for decoration or finishing.

Inorganic compound occurring in nature as green blue crystals; it is a green powder in its industrial form. Copper nitrate has a wide variety of applications. It is used to create patinas on metals; as a mordant and oxidizing agent in textile dyeing; as a pigment; as an ingredient in polishing agents for metals and pyrotechnics; as a fungicide.

A rare light blue corrosion product found as a contributing factor to the greenish chromatic degradation of azurite in mural paintings, and in the patina of outdoor bronze monuments such as the horses of San Marco in Venice.

Finely granulated copper with numerous metallurgical applications produced by various techniques such as electrolysis, atomization, hydroscopy. Each method of manufacture yields a powder with its own inherent characteristics.

A sulfate of copper, blue crystals in hydrous form, white when dehydrated. Copper sulfate is used as a preservative for wood, leather and paper; as a mordant and dye for textiles; as a biocide, and for a wide range of other purposes.

Broadly refers to any sulfide of copper, more specifically to the blackish crystalline sulfide CuS used in textile dyeing and as a black pigment in ancient painting. The presence of copper sulfide on the surface of ancient bronze artifacts has generated much debate over whether it should be seen as symptomatic of copper corrosion or as an intentional patination technique.

A sulfite of copper. Uses include in herbicides applied to water to kill plants, but they are toxic to fish and other water animals.

A yellow-orange compound of copper and vanadate. Used as a pigment; and a member of the vanadium group of natural and synthesized pigments.

Material fecal fosilizado; evidencia indirecta de vida prehistórica, particularmente relacionada a la dieta antigua.

Liturgical music of the descendants of ancient Egyptians who converted to Christianity prior to the Islāmic conquest of Egypt in the 7th century.

Se refiere al estilo de producción artística producido por egipcios cristianos entre principalmente los siglos IV y VII a.C. o los siglos V y VIII a.C. según algunos autores, pero también incluye obras producidas hasta el siglo XII a.C. Las obras de arte se caracterizan por colores brillantes lisos, figuras estáticas y motivos decorativos derivados de Siria, Cercano Oriente, antiguas fuentes egipcias y antiguas. Incluyen marfil y tallado en piedra, ilustración de manuscritos, cerámica, murales y tejido textil. La arquitectura se distingue por la construcción de iglesias, celdas cenobíticas y monumentos funerarios.

Úsese en referencia a la iglesia cristiana egipcia; en referencia específica al período medieval temprano en Egipto, use "Cóptico (período)".

Úsese para obras de arte producidas usando la tecnología de máquinas de impresión.

Negatives that depict other works, usually other photographs, which then are used to strike copy prints from.

Devices used to hold a camera and secure the printed material or other item to be photographed.

Pencils that produce a permanent mark, non-erasable with any pencil eraser.The component materials of copying pencil cores are graphite, kaolin clay, and an aniline dye as colorant.

Qualifier used for a work by an unknown creator whose style seems to be a deliberate copy of the style of the named artist, but when the work at hand is not a direct copy of a known work by the named artist (e.g., copyist of Rodin).

Short declarations indicating copyright ownership and protection, typically including the © symbol and year.

A formal statement of the copyright or licensing of a work, and/or any restrictions placed on it. Detailed declarations describing copyright ownership, scope, and applicable rights.