Natural earth . Natural calcined sienna
Description:
Color: brown to red
Chemical description: iron hydroxides and oxides. Chemical formula: Fe2O3 + Fe (OH) 2
Light resistance: 8
Alkali resistance: 5
Acid resistance:5
Form: powder
Coverage: medium
Used for techniques: acrylic, tempera, watercolor, gouache, fresco, ceramic, oil
The pigment was made by crushing and grinding. There may be insight uncrushed mineral in the package.
Pigments may contain harmful substances, so remember about safety rules.
Safety rules
- use eye and hand protection,
- cover the respiratory tract, do not eat,
- keep away from children,
- wash your eyes in case the pigment gets into your eyes