Ultramarine Blue

Ultramarine blue pigment is the most common blue inorganic pigment. It is compound with sulfur of aluminum silicate, having vivid lustre and pure colour.

Ultramarine blue with Excellent Thermostability; Excellent Light Fastness; Ultramarine blue is Untransferable; Easy to Scatter and Safe and Poisonless

type: Ultramarine blue pigment

Delivery Form:Powder

Chemical Class:Na6AI4Si6S4O20

Color Index:Pigment Blue29: 77007

CAS No. :57455-37-5

Molecular weight:862.60578

Scope of Application:
*Tinting: Applied to Paint, Ink, Spray, Rubber, Plastic, Arts pigment, Cosmetics, etc. and MAINLY APPLIED TO INDUSTRIES OF ARCHITECTURAL COATING, PLASTIC, RUBBER, PAINT AND SO ON
*Whitening: Ultramarine blue pigment can remove yellow colour contained in white materials.
*Mix colours: Ultramarine blue pigment can make black or grey have soft lustre.


Technical data sheet


Technical Data

Min                            Max                     Test Method


Water-Soluble Content [%]                                                              0.5                   DIN EN ISO 787 Part 3 (1995)

Sieve Residue (0.045mm) [%]                                                          0.1                   DIN 53195 (1990)

PH Value                                                          7.0                               10                    DIN EN ISO 787 Part 9 (1995)

Free Sulfur [%]                                                                                   0.05                  DIN 55913 (1972)

105°C Moisture (After Prod.) [%]                                                    1.0                   DIN EN ISO 787 Part 2 (1995)

Oil Absorption [g/100g]                                 30.0                           40.0                  DIN EN ISO 787 Part 5 (1995)

Thermo Stability                                             300°C                         350°C               Manufacturer standard

Lead content                                                                                      30ppm             EN71 Part3:1994+A1:2000/AC:2002,ICP-OES

Other heavy metals(Cr,Cd,Hg,As)                                                     N.D                 EN71 Part3:1994+A1:2000/AC:2002,ICP-OES

Specific gravity                                                  2.35                           2.35                GB21782-2008

Acid fastness                                                                                     1 degree(poor)

Alkali fastness                                      2                          3 degree (good) 

Average Particle size(µm)                              1.7                             1.9

Light fastness                                                    7                              8 degree


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