Scheele's Green, also called Schloss Green, is chemically a cupric hydrogen arsenite (also called copper arsenite or acidic copper arsenite), CuHAsO3. It is chemically related to Paris Green. It is a yellowish-green pigment and in the past it was used in some paints, but has since fallen out of use because of its toxicity and the instability of its colour in the presence of sulphides and various chemical pollutants.
Scheele's Green was invented in 1775 by Carl Wilhelm Scheele. By the end of the 19th century, it virtually replaced the older green pigments based on copper carbonate.
Famous quotes containing the word green:
“When every Sunday afternoon
On the Green Lands I walk
And wear a coat in fashion,
Memories of the talk
Of hen wives and of queer old men
Brace me and make me strong....”
—William Butler Yeats (18651939)