Type                                         Ultramarine blue  29
Molecular formula                   Na6Al4Si6S4O20
C.I.Name                                   Pigment Blue 29
Object  form                                Powder shape
CAS  NO.                                        57455.37.5
Water dissolves thing                      ≤0.2%
Physical appearance 
Coloured light                                  Blueish
Moisture conten105±2                      ≤1%
Attract oil amounts                     30-40cc/100g
P H                                                      7.5-9.0
Free  sulfur                                        ≤0.05%
Characteristic property 
Heat resistance                                >300 0
resistance to elements                   8 Level
Disperse                                             Good
Cover                                                    High
Put  colour  force                            100%±2%

Applicability 
Ultramarine Blue Used in tinting applications of blue paint, rubber, plastic printing, ink, paper, papermaking, soap, and beautification on ancient architecture