USD $1.30-1.70 / Kilogram
higher quality than other suppliers
good after service
lower price,strong performance
timely delivery
package:10kgs,20kgs,25kgs according to clients' requiements
carbon black executive standard : gb3778-2003 |
||||
items of test |
n220 |
n330 |
n550 |
n660 |
iodine absorption g/kg |
122 |
83 |
43 |
36 |
dbp absorption 10-5m3/kg |
144 |
103 |
122 |
92 |
dbp absorption of compressed sample 10-5m3/kg |
98 |
88 |
86 |
73 |
ctab adsorption surface area 103m2/kg |
109 |
81 |
42 |
35 |
stsa 103m2/kg |
107 |
75 |
39 |
34 |
nitrogen surface area 103m2/kg |
117 |
78 |
39 |
35 |
pigmentation intensity % |
116 |
105 |
|
|
heating loss %≤ |
1.5 |
1.5 |
1.0 |
1.0 |
ash %≤ |
0.2 |
0.2 |
0.2 |
0.2 |
grit mesh 45# ≤ |
0.042 |
0.042 |
0.042 |
0.042 |
impurity |
none |
none |
none |
none |
pumping density kg/m3 |
362 |
388 |
370 |
448 |
300% elongation stress mpa |
-2.2 |
-1.0 |
-1.0 |
-0.4 |
test conclusion |
first grade |
first grade |
first grade |
first grade |