Item

N220

N330

N660

Iodine Absorption Number, g/Kg

121±7

82±7

36±6

DBP Absorption Number 10^-5m³/Kg

114±7

102±7

90±7

Compress Sample DBP Absorption Number 10^-5m³/Kg

90-106

80-96

66-82

CTAB Absorptive Specific Surface Area 10³m²/Kg

102-120

73-91

29-43

STSA 10³m²/Kg

106±9

75±9

34±9

Nitrogen adsorption's specific surface area (10³m²/Kg)

112-126

71-85

29-41

Tinting Strength

108-124%

96-112%

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Loss On Heating %

≤2.5

≤2.5

≤1.5%

Ash Content %

≤0.5

≤0.5

≤0.5%

Impurity

No

No

No

Pour density kg/m ³

355±40

380±40

440±40

Residues on 500µm sieve %

0.001

0.001

0.001

Residues on 45µm sieve %

0.1

0.1

0.1

300% Modulus Mpa

-2.3±1.6

-0.9±1.6

-2.6±1.6