Scheele's green

"Copper arsenite" redirects here. Not to be confused with copper arsenate.
Scheele's green
Names
IUPAC name
copper hydrogen arsenite
Other names
Copper arsenite
Copper arsenate
Swedish green
Cupric green
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.573 Edit this at Wikidata
  • InChI=1S/AsHO3.Cu/c2-1(3)4;/h2H;/q-2;+2 checkY
    Key: BPQWCZKMOKHAJF-UHFFFAOYSA-N checkY
  • InChI=1/AsHO3.Cu/c2-1(3)4;/h2H;/q-2;+2
    Key: BPQWCZKMOKHAJF-UHFFFAOYAR
  • [Cu+2].[O-][As]([O-])O
Properties
AsCuHO3
Molar mass 187.474
Hazards
NIOSH (US health exposure limits):
PEL (Permissible)
 [1910.1018] TWA 0.010 mg/m3[1]
REL (Recommended)
 Ca C 0.002 mg/m3 [15-minute][1]
IDLH (Immediate danger)
 Ca [5 mg/m3 (as As)][1]
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 ?)

Scheele's green, also called Schloss green, is chemically a cupric hydrogen arsenite (also called copper arsenite or acidic copper arsenite), CuHAsO
3. It is chemically related to Paris green. Scheele's green was invented in 1775 by Carl Wilhelm Scheele.[2][3] By the end of the 19th century, it had virtually replaced the older green pigments based on copper carbonate. It is a yellowish-green pigment commonly used during the early to mid-19th century in paints as well as being directly incorporated into a variety of products as a colorant.[4] It began to fall out of favor after the 1860s because of its toxicity and the instability of its color in the presence of sulfides and various chemical pollutants.[5] The acutely toxic nature of Scheele's green as well as other arsenic-containing green pigments such as Paris green may have contributed to the sharp decline in the popularity of the color green in late Victorian society.[5] By the dawn of the 20th century, Scheele's green had completely fallen out of use as a pigment but was still in use as an insecticide into the 1930s.[6][7] At least two modern reproductions of Scheele's green hue with modern non-toxic pigments have been made, with similar but non-identical color coordinates: one with hex#3c7a18 (RGB 60, 122, 24) and another with hex#478800 (RGB 71, 136, 0).[8][9] The latter is the more typically reported color coordinate for Scheele's green.[10]

  1. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0038". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ Scheele, Carl Wilhelm (1778). "Tilrednings-saettet af en ny groen Faerg" [Method of preparation of a new green color]. Kungliga Vetenskaps Akademiens Handlingar (in Swedish). 39: 327–328.
  3. ^ "StudioMara – History of Pigments". www.lilinks.com.
  4. ^ Ruiz, Ada (2018-08-01). "Poisonous Pigments: Scheele's Green". Los Angeles Art College | Fine Art | Concept Art | Degrees | Community Classes. Retrieved 2022-09-27.
  5. ^ a b "Scheele's Green - The Shunning of Green in the Victorian Era". DIEDFAMOUS. Retrieved 2022-09-27.
  6. ^ "Explore Meural's Permanent Art Collection | Digital Artwork". my.meural. Retrieved 2022-09-27.
  7. ^ Cite error: The named reference :4 was invoked but never defined (see the help page).
  8. ^ "Samson Scheeles Green Precisely Matched For Paint and Spray Paint". MyPerfectColor.com. Retrieved 2022-09-27.
  9. ^ Petherick, Andrew (2021-12-11). "Scheele's green as a home interior colour". Artichoke. Retrieved 2022-09-27.
  10. ^ "Scheele's Green color hex code is #478800". www.color-name.com. Retrieved 2022-09-27.