Hangzhou Multicolor Blue Pigment

We are offering blue pigment. 15: 1
product name: cyanine blue - pigment blue 15: 1
cas no.: 147-14-8
eu no.: 205- 685-1
c. I. No.: 74160
formula: c32h16cun8
molecular weight: 576-610
specific gravity (20 d. C. ): 1. 40-1. 80
melting point: 480c
surface area (m2/g): 30-89
ph value: 6-8
oil absorption (g/100g): 30-50
heat stability: 250c.