Paris green

Paris green
Paris green
Color coordinates
Hex triplet	#50C878
sRGBB (r, g, b)	(80, 200, 120)
HSV (h, s, v)	(140°, 60%, 78%)
CIELChuv (L, C, h)	(72, 71, 137°)
Source	Maerz and Paul
ISCC–NBS descriptor	Vivid yellowish green
	B: Normalized to [0–255] (byte);

Paris green
Names
	Other names C.I. pigment green 21, emerald green, Schweinfurt green, imperial green, Vienna green, Mitis green, Veronese green
Identifiers
CAS Number	12002-03-8 ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	17215797;
ECHA InfoCard	100.125.242
EC Number	601-658-7;
PubChem CID	22833492;
UNII	X4916E1P1M ;
UN number	1585
CompTox Dashboard (EPA)	DTXSID0024846 ;
	InChI InChI=1S/2C2H4O2.6AsHO2.4Cu/c21-2(3)4;62-1-3;;;;/h21H3,(H,3,4);6(H,2,3);;;;/q;;;;;;;;4*+2/p-8 Key: HTSABAUNNZLCMN-UHFFFAOYSA-F;
	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]; CC(=O)[O-].CC(=O)[O-].[O-][As]0O[As]([O-])O[As]([O-])O0.[O-][As]0O[As]([O-])O[As]([O-])O0.[Cu+2].[Cu+2].[Cu+2].[Cu+2];
Properties
Chemical formula	Cu(C2H3O2)2·3Cu(AsO2)2
Molar mass	1013.79444 g/mol
Appearance	Emerald green crystalline powder
Density	>1.1 g/cm3 (20 °C)
Melting point	> 345 °C (653 °F; 618 K)
Boiling point	decomposes
Solubility in water	insoluble
Solubility	soluble but unstable in acids; insoluble in alcohol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H410
Precautionary statements	P260, P264, P273, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P362, P391, P405, P501
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	22 mg/kg
	NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1018] TWA 0.010 mg/m3
REL (Recommended)	Ca C 0.002 mg/m3 [15-minute]
IDLH (Immediate danger)	Ca [5 mg/m3 (as As)]
Safety data sheet (SDS)	CAMEO MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Paris green (copper(II) acetate triarsenite or copper(II) acetoarsenite) is an arsenic-based organic pigment. As a green pigment it is also known as Schweinfurt green, emerald or Vienna green. It is a highly toxic emerald-green crystalline powder that has been used as a rodenticide and insecticide, and also as a pigment. 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 and in paintings, the color can degrade quickly.

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