Paris Green

Also known as (Acetato)trimetaarsenitodicopper, Emerald green, Schweinfurt green, Vienna green, C.I. pigment green 21, imperial green, Mitis green, Veronese green

chemical compound

Chemical data

Formula: C4H6As6Cu4O16
Molecular weight: 1013.79 g/mol
IUPAC name: tetracopper;oxoarsinite;diacetate
SMILES: CC(=O)[O-].CC(=O)[O-].[O-][As]=O.[O-][As]=O.[O-][As]=O.[O-][As]=O.[O-][As]=O.[O-][As]=O.[Cu+2].[Cu+2].[Cu+2].[Cu+2]
InChIKey: HTSABAUNNZLCMN-UHFFFAOYSA-F
Polar surface area: 321 Å²
H-bond donors: 0
H-bond acceptors: 16
Formal charge: 0

via PubChem

Wikidata facts

Mass: 1011.213553112
Image: Paris Green (Schweinfurter Grün).JPG

Show 3 more facts

canonical SMILES: CC(=O)[O-].CC(=O)[O-].[O-][As]=O.[O-][As]=O.[O-][As]=O.[O-][As]=O.[O-][As]=O.[O-][As]=O.[Cu+2].[Cu+2].[Cu+2].[Cu+2]
Commons category: Paris Green
chemical formula: C₄H₆As₆Cu₄O₁₆

Sources (1)

wikidata.org

via Wikidata · CC0

~8 min read

Article

Paris green (copper(II) acetate triarsenite or copper(II) acetoarsenite) is an arsenic- and copper-containing pigment. It is an emerald-green crystalline powder that is also known as Mitis green, Schweinfurt green, Sattler green, emerald green, Vienna green, emperor green or mountain green. It is highly toxic and has thus also been used as a rodenticide and insecticide. Its formula is Cu(C2H3O2)2·3Cu(AsO2)2.

It was manufactured in 1814 to be a pigment to make a vibrant green paint, and was used by many notable painters in the 19th century. The color of Paris green is said to range from a pale blue-green when very finely ground, to a deeper green when coarsely ground. Due to the presence of arsenic, the pigment is extremely toxic. In paintings, the color can degrade quickly.