BAYER (Iron
oxide 640)
SPECIFICATION:
Manufacturer:
Bayer ag In
organics business group
|
Type |
Brown
pigment |
|
Chemical
class |
Synthetic
iron oxide |
|
Delivery
form |
powder |
|
Color
index |
Pigment red 101 (77491) Pigment black 11 (77499) |
|
Cas
no . |
1309-37-1 1317-61-9 |
Coulor
values and tinting strength
|
|
Min. |
Max. |
Test method |
|
Binder |
Alkydal L 64 |
|
|
|
Full shade |
|
|
|
|
^L* |
-0.5 |
0.5 |
Color measurement To DIN
6174(1) |
|
^a* |
-1.2 |
1.2 |
|
|
^b* |
-1.3 |
1.3 |
|
|
^E* |
|
1.5 |
|
|
Reduced
shade with bayertitan R-kB-2(1:5)( ^L*= 0) |
|||
|
^a* |
-1.2 |
1.2 |
Color measurement To DIN
6174(1) and DIN 55 986(1) |
|
^b* |
-1.3 |
1.3 |
|
|
^E* |
|
1.5 |
|
|
Binder |
Heavy spar |
|
|
|
Rel. tinting
strength[%] |
|
|
|
Specified
values (continued)
Technical
data
|
|
Min. |
Max. |
Test method |
|
Water-
soluble salts[%] |
|
0.5 |
Din Iso 787
part 3 |
|
Sieve
residue |
|
|
|
|
(on 0.045mm
mesh)[%] |
0.1 |
Din 53 195 |
|
|
Ph |
5 |
8 |
Din Iso 787
part 9 |
|
|
Min. |
Max. |
Test method |
|
Fe2O3 [%] |
95 |
96 |
Din 55913 |
|
Sio2+Al2O3
[%] |
|
3 |
Din 55913 |
|
Loss on
heating at 1000ºC, |
|
|
|
|
1/2 h [%]
(7) |
|
3 |
Din 55913 |
|
Water
content ( ex works ) [%] |
|
2.5 |
Din Iso 787
part 2 |
|
Partical
shape |
irregular |
|
|
|
Predominant
particale size[µm] |
|
0.1 -0.6 |
Electron
micrographs |
|
Oil
absorption [g / 100g] |
|
Approx.27 |
Din Iso 787
part 5 |
|
Tamped
apparent density [g/cm³] |
0.8 |
102 |
Din Iso 787
part 11 |
|
Density
[g/cm³] |
|
Approx.4.7 |
Din Iso 787
part 10 |
Standard
packing
25-kg
bag 1,000-kg bulk bag
Transport
and storage
conditions
Protect from
atmospheric conditions:
store in a dry place and avoid extreme temperature fluctuations. During
the
storage of large quantities of pigment, temperatures of above 80 ºC must be avoided as an alteration (oxidation)
of the pigment, may be caused by heat.
Close bag
after use to prevent moisture intake and soiling.