Ultramarine Blue Laundry Grade
Physical Appearance : Blue Powder
SHADES : Reddish blue is very characteristic Other shades may go from the darker reddish shades to the lighter greener ones.
Application : Suitable for laundry (During washing to prevent yellowing of
white clothes).
Properties : It is highly fast to light. Resistance to heat is >350 deg. Centigrade for 5 minutes. It is not resistant to acids. It is not soluble in normal organic or aqueous solvents. it does not have a tendency to migrate.
BASIC CHARACTERISTICS : Tinting Strength : 0-300
Specific Gravity approx. : 2.35
Moisture Contents (% max : < 2.00
Sieve residue 53nm : < 1.50
Soluble Salts (% max.) : < 1.00
Acid fastness : 1 (Poor)
Alkali fastness : 2- 3 (Good)
Light fastness : 8 (Excellent)
Handling : In their industrial usage, the recommended procedures for handling non-toxic dusts must be followed.