Ultramarine Blue (Pigment Blue 29)plastic and rubber pigment

Index name

Index

Result

1

DE

+0.5

+0.3

2

Tinting Strength (Compared with standard sample)

100%+3

102%

3

Solute in Water

≤0.2%

0.15%

4

Free Sulfur

≤0.05%

0.03%

5

Moisture (105+2°C)

≤1%

0.35%

6

Sieve Residue(325 mesh)

≤0.1%

0.056%

7

Oil Absorption

30-40

33

8

Thermo Stability

≥350°C

350°C

9

PH value PH

8-10

8

10

Lead Content ≤

   ≤25 ppm

11

11

Cadmium

N.D.

12

Mercury

N.D.

13

Arsenic

N.D.

14

Hexavalent Chromium ( Cr+6)

N.D.

15

Specific gravity

2.35g/cm3  

GB21782-2008

16

Tap density

0.5g/cm3  

GB 52118-1985

17

Mean particle size

1.4 micron     

   GB/T 21865-2008