Details:

Cobalt Blue (P.B.28)

Chemical Name:              Cobalt Aluminates Blue Spinel                                                        
Chemical Composition:  Co/Al Oxide 
Color Index Name:           Pigment Blue 28 / P.B.28

Color Index Number:       77346

CAS Number:                  1345-16-0

Physical Form:                 Blue Powder

Crystal Pattern:                Spinel Pattern

 

Product Characteristics:

Pigment Blue 28 is a bright color with reddish blue, which has a special anti-far-infrared function. it is also one kinds of environmental protection pigments, which is internationally recognized as non-toxic pigments. It is easy to disperse, with excellent heat resistance, weather resistance, acid & alkali resistance, and resist to a variety of solvents, good hiding power.    

 

Main Technical Data 

Heat Resistance:                 ≤1200°C 

Light Resistance (Grade 1-8):    8 

Weather Resistance (Grade 1-5):  5

Acid Resistance (Grade 1-5):     5

Alkali Resistance (Grade 1-5):   5

Oil Absorption:                  28-37g/100g 

Density:                         3.8-5.4 g/cm3 

PH:                              7-9 

Mean Particle Size:              ≤0.95 

 

Regulations:

Compliant to EU RoHS 2002/95/EC

Compliant to EN71Part 3:1994 (A1:2000/AC2002)

Compliant to US FDA 21 CFR 177.1520

Compliant to ASTM F963-08 (Clause 4.3.5)

Compliant to REACH

 

Applications:

It is mainly used in high temperature (resistant) coatings, ceramics, enamels, glass coloring, coloring of high temperature resistance engineering plastics, food contact plastics, as well as art paint.

 

Remarks: Item No. DPI-BU2801/2802/2803 color from light to dark.