1. Carbon black N220 N330 N550 N660. 
2. Wet granules. 
3. Used for rubble products, masterbatch, etc 
4. High quality 
5. Purity: 99.9% 
6. CAS No.: 1333-86-4
7. Specifications

Carbon black                                Executive Standard : GB3778-2003
Items of Test	N220	N330	N550	N660
Iodine Absorption                       g/kg	122	83	43	36
DBP Absorption                   10 -5 m 3 /kg	144	103	122	92
DBP Absorption of Compressed Sample 10 -5 m 3 /kg	98	88	86	73
CTAB Adsorption Surface Area       10 3 m 2 /kg	109	81	42	35
STSA                             10 3 m 2 /kg	107	75	39	34
Nitrogen Surface Area              10 3 m 2 /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/m 3	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