DPP Orange RA, PO 73

This pigment is extremely light and dusty. It requires a wetting agent for proper mixing. If binding in cement, it is rated for interior use only.

Never treat with hydrochloric acid.

• Chemical description: Diketo-pyrrolo-pyrrol. Pigment Orange 73, C.I. 561170
• Resistance to alkali: 5 (1 is bad, 5 is best)
• Resistance to lime: 5 (1 is bad, 5 is best)
• Resistance to acid: 5 (1 is bad, 5 is best)
• Lightfastness - thinned: 8 (1 is bad, 8 is best)
• Lightfastness - medium: 8 (1 is bad, 8 is best)
• Lightfastness - concentrated: 8 (1 is bad, 8 is best)
• ColorIndex: PO 73.561170
• Opacity: opaque
• Suitability: Acrylics, Cement / Tadelakt, Lime / Fresco, Oil, Tempera, Watercolor / Gouache
• Colors: Orange
• Forms: powder
• Solubility in water: insoluble (20°C)

Further specifications from the manufacturer can be read here. 

DPP Pigments 23178-23182