Light Fastness: 5
Heat Resistance: 180
Oil Resistance: 4
Acid Resistance: 5
Alkali Resistance: 5

1.Solubility: insoluble in water, slightly soluble in toluene; in concentrated sulfuric acid in the red light was bright orange, green and diluted into a dark yellow precipitate.

2.Hue or shade: red yellow and 1.52

3. relative density :1.14-

4.packing density / (lb / gal) :9.5-12 .6

5.Melting point / °C :320-336

6.average particle size / μm: 0.12

7.ratio of surface area / (m2 / g): 35; 53 (BRM)

8.pH value / (10% slurry) :5.0-7.5

9. Oil absorption / (g/100g) :29-75