i think they're pretty interchangeable, but if you want to be nitpicky:
verdigris is the green coating that accumulates on copper and brass metals.
patina is the green coating that collects on bronze metal. (although patina is used much more broadly than that as well)
taken from definitions below (mac dictionary widget):
verdigris |ˈvərdəˌgrēs; -ˌgris; -ˌgrē|
noun
a bright bluish-green encrustation or patina formed on copper or brass by atmospheric oxidation, consisting of basic copper carbonate.
ORIGIN Middle English : from Old French verte-gres, earlier vert de Grece 'green of Greece.'
patina |pəˈtēnə|
noun
a green or brown film on the surface of bronze or similar metals, produced by oxidation over a long period.
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Nothing.
The main difference between artwork and work of art is that a work of art is generally held in higher regard than an artwork.
More red in maroon
papichulo
Verdigris
If your attic doesn't have any leaks, then the patina (green color) is most likely formed by the reaction between the copper and carbon dioxide in the air, forming copper carbonate. This patina, called verdigris, protects the copper underneath from corrosion.
Copper typically turns green when it oxidizes, forming a patina known as verdigris. This greenish layer is created as a result of the chemical reaction between copper and moisture in the air.
Copper rust is commonly referred to as patina, which is a greenish-blue or greenish-brown film that forms on the surface of copper and other metals when exposed to air over time.
The color that copper turns when it oxidizes is called verdigris. It is a greenish-blue patina that forms on the surface of copper over time due to exposure to air and moisture.
The color green that aged copper turns into is called patina. It is a natural blue-green tarnish that forms on the surface of copper when exposed to air and moisture over time.
Acetone will not remove verdigris.
To accelerate the formation of verdigris patina on copper, you can create a solution of vinegar and salt. You can also use a mixture of hydrogen peroxide and salt to speed up the process. Simply apply these solutions to the copper surface and allow them to sit for some time, periodically checking the progress until you achieve the desired patina.
A patina is a natural or applied surface finish to a sculpture piece. Natural patinas may occur by oxidation due to long exposure to air or earth — the most common of which is verdigris on copper or bronze
The word is "oxidation", which in the case of copper is a three-step process where the copper oxidizes to copper oxide, then to cuprous or cupric sulfide, and then to copper carbonate. Copper carbonate is the green colored copper or patina that forms over time. The old name for this green patina is "verdigris".
Verdigris - Doctor Who - was created in 2000.
The compound is commonly known as copper(II) acetate.