Ultramarine violet (PV15)
Ultramarine violet is a further development of French ultramarine. Take the French ultramarine pigment and mix it with ammonium chloride (same as salmiak salt), heat the mixture to 250 degrees Celsius. Let the results…
Ultramarine violet is a further development of French ultramarine. Take the French ultramarine pigment and mix it with ammonium chloride (same as salmiak salt), heat the mixture to 250 degrees Celsius. Let the results…