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Specifications

Carbon Black N220/N330/N550/N660

We mainly produce: Black Carbon N220, N234, N375, N550, N326, N339, N660, N330. Grade wet processed granular carbon black, and have the potential to produce 20 grade carbon black if the quantity is suitable.

TECHNICAL SHEET(STANDARD: GB3778-2003 & ASTM-STANDARD)
Item Unit Grade N220 N234 N330 N326 N339 N375 N550 N660
Iodine Adsorption Number g/Kg superior 121± 5 120± 5 82± 5 82± 5 90± 5 90± 5 43± 4 36± 4
Qualified 121± 7 120± 7 82± 7 82± 7 90± 7 90± 7 43± 6 36± 6
DBP Absorption Number 10 -5 m 3 /kg superior 114± 5 125± 5 102± 5 72± 5 120± 5 114± 5 121± 5 90± 5
Qualified 114± 7 125± 7 102± 7 72± 7 120± 7 114± 7 121± 7 90± 7
Compressed DBP Absorption Number 10 -5 m 3 /kg   93~103 97~107 83~93 64~72 94~104 91~101 80~90 69~79
Qualified 90~106 94~110 80~96 62~74 91~107 88~104 77~93 66~82
CTAB Surface Area 10 3 m 2 /kg superior 105~117 113~125 76~88 77~89 87~99 90~102 37~47 31~41
Qualified 102~120 110~128 73~91 74~92 84~102 87~105 35~49 29~43
Nitrogen Surface Area 10 3 m 2 /Kg superior 114~124 114~124 73~83 73~83 86~96 88~98 34~44 31~39
Qualified 112~126 112~126 71~85 71~85 84~98 86~100 34~46 29~41
STSA 10 3 m 2 /Kg superior 106± 5 112± 5 75± 5 76± 5 88± 5 91± 5 39± 5 34± 5
Qualified 106± 9 112± 9 75± 9 76± 9 88± 9 91± 9 39± 9 34± 9
Tint strength % superior 111~121 118~128 99~109 106~116 106~116 109~119 ¬ ¬

Qualified		 108~124 115~131 96~112 103~119 103~119 106~122 ¬ ¬
PH Value   Qualified 7± 1.5
Heating Loss %≤ Qualified 2.5 1.5
Ash Content % ≤ Qualified 0.7
45 um mesh % ≤ superior 0.05
Qualified 0.10
Impurity   Qualified NO
Fines Content %≤ Qualified 7
Toluene Discoloration % max 1618 Qualified 90 85 80
sulfur % max 1619 Qualified 1.1 1.5 1.1
Pour density kg/m3 Qualified 355± 40 320± 40 380± 40 455± 40 345± 40 345± 40 360± 40 440± 40
Modulus at 300% Mpa superior -2.3± 1.0 -0.4± 1.0 -0.9± 1.0 -3.9± 1.0 0.6± 1.0 0.1± 1.0 -0.9± 1.0 -2.6± 1.0
Qualified -2.3± 1.6 -0.4± 1.6 -0.9± 1.6 -3.9± 1.6 0.6± 1.6 0.1± 1.6 -0.9± 1.6 -2.6± 1.6