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Carbon Black
Carbon Black is made of fine particles of amorphous
carbon and is produced by partial combustion of petroleum or natural gas.
The modification of an elastomer by carbon black reinforcement and vulcanization transforms the soft elastomer into a strong, elastic product. A rubber compounder must select the right polymer, the right
carbon black grade/loading level combination, and the right vulcanization system to give a rubber compound with the desired properties at the lowest possible cost.
Astlett Rubber supplies carbon black from Russia and Ukraine. We sell all of the most common ASTM grades in three modes: Furnace (N220 to N774), Thermal (N990/N991), and Channel (K354). The specification chart below
highlights some of the more popular grades of Carbon Black.
If the grade you are looking for is not listed below, please contact us.
Typical
Characteristics
|
Unit |
K-354 |
N-220 |
N-330 |
N-339 |
N-550 |
Iodine Adsorption |
g/kg |
65 - 75 |
121 +/- 5 |
82 +/- 5 |
90 +/- 5 |
43 +/- 5 |
CTAB Surface Area |
m2/g |
- |
111 +/- 7 |
83 +/- 6 |
95 +/- 6 |
42 +/- 5 |
DBP Absorption |
cm3/100g |
90 - 108 |
114 +/- 5 |
102 +/- 5 |
120 +/- 5 |
121 +/- 5 |
pH Value |
|
3.7 - 4.5 |
6 - 9 |
6 - 9 |
6 - 9 |
6 - 9 |
Heating Loss at 125°C |
% max |
1.5* |
1.0 |
1.0 |
1,0 |
1.0 |
Ash Content |
% max |
0.05 |
0.45 |
0.45 |
0.45 |
0.45 |
Sieve Residue |
% max |
0.1 - 0.001 |
0.1 - 0.001 |
0.1 - 0.001 |
0.1 - 0.001 |
0.1 - 1.001 |
Sulfur Content |
% max |
- |
1.1 |
1.1 |
1.1 |
1.1 |
Toluene Discoloration |
% min |
- |
90 |
90 |
90 |
85 |
Pour Density |
kg/m3 |
- |
330 |
340 |
320 |
330 |
Fine Content |
% max |
6 |
15 |
15 |
15 |
15 |
Nitrogen Surface Area |
m2/g |
150 |
- |
- |
- |
- |
Physical Form |
|
Granule |
Dry Pellet |
Dry Pellet |
Dry Pellet |
Dry Pellet |
* indicates Heating Loss at 105°C
|
Unit |
N-660 |
N-762 |
N-765 |
N-772 |
Iodine Adsorption |
g/kg |
36 +/- 5 |
30 +/- 5 |
25 - 35 |
28 +/- 4 |
CTAB Surface Area |
m2/g |
36 +/- 5 |
25 - 33 |
- |
29 - 37 |
DBP Absorption |
cm3/100g |
90 +/- 5 |
65 +/- 4 |
110 - 120 |
65 +/- 5 |
pH Value |
|
6 - 9 |
9 - 11 |
7 - 9 |
9 - 11 |
Heating Loss at 125°C |
% max |
1.0 |
0.3 |
0.9 |
0.3 |
Ash Content |
% max |
0.45 |
0.5 |
0.45 |
0.4 |
Sieve Residue
35 mesh
325 mesh |
% max |
0,1 - 0,001 |
0.0001 0.005 |
0.001 0.1 |
0.0001 0.005 |
Sulfur Content |
% max |
1.1 |
0.1 |
- |
0.1 |
Toluene Discoloration |
% min |
80 |
70 |
- |
70 |
Pour Density |
kg/m3 |
375 |
480 |
365 - 395 |
460 |
Fine Content |
% max |
15 |
7 |
- |
7 |
Nitrogen Surface Area |
m2/g |
- |
30 +/- 5 |
- |
30 +/- 5 |
Physical Form |
|
Dry Pellet |
Dry Pellet |
Wet Pellet |
Dry Pellet |
|
Unit |
N-774 |
N-990 |
N-991 |
P-803 |
Iodine Adsorption |
g/kg |
29 +/- 4 |
8 +/- 4 |
8 +/- 4 |
- |
CTAB Surface Area |
m2/g |
25 - 33 |
7 |
7 |
- |
DBP Absorption |
cm3/100g |
72 +/- 4 |
35 +/- 5 |
35 +/- 5 |
76 - 90 |
pH Value |
|
9 - 11 |
7 - 11 |
7 - 11 |
7 - 9 |
Heating Loss at 125°C |
% max |
0.3 |
0.01 |
0.01 |
0.5* |
Ash Content |
% max |
0.5 |
0.5 |
0.5 |
0.45 |
Sieve Residue
35 mesh
325 mesh |
% max |
0.0001 0.005 |
0.0001 0.002 |
0.001 0.02 |
0.001 0.08 |
Sulfur Content |
% max |
0.1 |
0.1 |
0.1 |
- |
Toluene Discoloration |
% min |
70 |
80 |
80 |
- |
Pour Density |
kg/m3 |
490 |
550 |
550 |
320 - 400 |
Fine Content |
% max |
7 |
8 |
- |
6 |
Nitrogen Surface Area |
m2/g |
30 +/- 5 |
9 - 11 |
9 - 11 |
14 - 18 |
Physical Form |
|
Dry Pellet |
Granule |
Powder |
Granule |
* indicates Heating Loss at 105°C
|
Unit |
P-705 |
P-803 |
P-805E |
P-805S |
Iodine Adsorption |
g/kg |
- |
- |
- |
- |
CTAB Surface Area |
m2/g |
- |
- |
- |
- |
DBP Absorption |
cm3/100g |
115 - 125 |
86 - 100 |
110 - 140 |
76 - 92 |
pH Value |
|
7.5 - 9.5 |
7.5 - 9.5 |
7.5 - 9.5 |
7.5 - 9.5 |
Heating Loss at 105°C |
% max |
0.5 |
0.5 |
0.2 |
0.5 |
Ash Content |
% max |
0.2 |
0.2 |
0.1 |
0.2 |
Sieve Residue
35 mesh
325 mesh |
% max |
0.001 0.08 |
0.001 0.08 |
0.001 0.08 |
0.001 0.08 |
Sulfur Content |
% max |
- |
- |
- |
- |
Toluene Discoloration |
% min |
- |
- |
- |
- |
Pour Density |
kg/m3 |
- |
- |
- |
- |
Fine Content |
% max |
- |
- |
- |
- |
Nitrogen Surface Area |
m2/g |
20 - 26 |
14 - 18 |
13 - 17 |
25 - 30 |
Physical Form |
|
Powder |
Powder |
Powder |
Powder |
These figures are typical values. Specific values may vary
by producer.

Material
Safety Data Sheet
Download our Carbon Black
Material Safety Data Sheet (MSDS) for more information.
The file is provided in Adobe PDF format for easy viewing and
printing.
Excerpts on this page
taken from:
Morton, Maurice, ed. Rubber Technology, Third Edition.
Kluwer Academic Publishers, 1999.
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