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Paris green information


Paris green
Names
Other names
C.I. pigment green 21, emerald green, Schweinfurt green, imperial green, Vienna green, Mitis green, Veronese green[1]
Identifiers
CAS Number
  • 12002-03-8 checkY
3D model (JSmol)
  • Interactive image
  • Interactive image
ChemSpider
  • 17215797
ECHA InfoCard 100.125.242 Edit this at Wikidata
EC Number
  • 601-658-7
PubChem CID
  • 22833492
UNII
  • X4916E1P1M checkY
UN number 1585
CompTox Dashboard (EPA)
  • DTXSID0024846 Edit this at Wikidata
InChI
  • InChI=1S/2C2H4O2.6AsHO2.4Cu/c2*1-2(3)4;6*2-1-3;;;;/h2*1H3,(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
GHS06: ToxicGHS09: Environmental hazard
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[2]
REL (Recommended)
Ca C 0.002 mg/m3 [15-minute][2]
IDLH (Immediate danger)
Ca [5 mg/m3 (as As)][2]
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).
☒N verify (what is checkY☒N ?)
Infobox references
Paris green
 
About these coordinates     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°)
SourceMaerz and Paul[3]
ISCC–NBS descriptorVivid yellowish green
B: Normalized to [0–255] (byte)

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 Mitis green, Schweinfurt green, Sattler green, emerald, or Vienna green, Emperor green or Mountain green. It is a highly toxic emerald-green crystalline powder[4] that has been used as a rodenticide and insecticide,[5] 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.

  1. ^ "Health & Safety in the Arts -- Painting & Drawing Pigments". Environmental Management Division, City of Tucson AZ. Archived from the original on 20 July 2011. Retrieved 7 February 2011.
  2. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0038". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ The color displayed in the color box above matches the color called emerald green in the 1930 book by Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill; the color emerald green is displayed on page 75, Plate 26, Color Sample J10.
  4. ^ "Hazardous Substance Fact Sheet" (PDF). NJ Dept. of Health and Senior Services. Retrieved 7 February 2011.
  5. ^ "Dangers in the Manufacture of Paris Green and Scheele's Green". Monthly Review of the U.S. Bureau of Labor Statistics. 5 (2): 78–83. 1917. JSTOR 41829377.

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