Carbon Black
Carbon black is virtually pure elemental carbon in the form of colloidal particles that are produced by incomplete combustion or thermal decomposition of gaseous or liquid hydrocarbons under controlled conditions and is composed of fine particles consisting mainly of carbon.
The manufacturing process classifies carbon black.
The furnace black process is currently the most common method used for manufacturing carbon black for various applications from rubber reinforcement to coloring.
A large amount of carbon black is used mainly in tires as excellent rubber reinforcement.
Although, because of its unique properties, the uses of carbon black have expanded to include other products, including; industrial rubber products, plastics, and printing inks.
CARBON BLACK SPECIFICATION
|
TEST NAME |
UNIT |
ASTM METHOD |
N-220 |
N-234 |
N-326 |
N-330 |
N-339 |
N-347 |
N-375 |
N-550 |
N-660 |
N-772 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Iodine Number |
mg/g |
ASTM D1510 |
116-126 |
115-125 |
77-87 |
77-87 |
85-95 |
85-95 |
85-95 |
38-48 |
31-41 |
25-35 |
|
DBP Absorption Number |
ml/100g |
ASTM D2414 |
4 109-119 |
120-130 |
67-77 |
97-107 |
115-125 |
119-129 |
109-119 |
116-126 |
85-95 |
60-70 |
|
CDBP Absorption Number |
ml/100g |
ASTM D3493 |
93-103 |
97-107 |
63-73 |
83-93 |
94-104 |
94-104 |
91-101 |
80-90 |
69-79 |
54-64 |
|
Heating Loss (max) |
%w |
ASTM D1509 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
|
Pour Density |
g/l |
ASTM D1513 |
335-375 |
300-340 |
435-475 |
360-400 |
325-365 |
315-355 |
325-365 |
340-380 |
420-460 |
500-540 |
|
Toluene Discoloration (min) |
% T |
ASTM D1618 |
90 |
90 |
90 |
90 |
90 |
90 |
90 |
85 |
85 |
85 |
|
Sieve Residue NO.35 (max) |
ppm |
ASTM D1514 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Sieve Residue NO.325 (max) |
ppm |
ASTM D1514 |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
|
PH Value |
- |
ASTM D1512 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
7.5 - 9 |
|
Ash Content |
%w |
ASTM D1506 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
0.75 |
|
FINES (Bag) (max) |
%w |
ASTM D1508 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
FINES (Big Bag) (max) |
%w |
ASTM D1508 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
|
Individual Pellet Hardness |
CN |
ASTM D3313 |
10-40 |
10-40 |
10-40 |
10-40 |
10-40 |
10-40 |
10-40 |
10-40 |
10-40 |
10-40 |
|
Sulfur Content (max) |
%w |
ASTM D1619 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
Nitrogen Surface Area |
m2/g |
ASTM D6556 |
109-126 |
114-124 |
73-83 |
73-83 |
86-96 |
80-90 |
88-98 |
35-45 |
30-40 |
27-37 |
|
Tint Strength |
% ITRB |
ASTM D3265 |
111-121 |
118-128 |
106-116 |
99-109 |
106-116 |
100-110 |
109-119 |
58-68 |
53-67 |
.......... |
