CAS NO.: 1333-86-4
Chemical formula: SiO2·nH2O
Specification:
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Items
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N220
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N330
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N550
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Iodine Absorption Number g/kg
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121 +/-5
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82 +/-5
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43 +/-4
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DBP Absorption Number 10-5m3/Kg
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114 +/-5
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102 +/-5
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121 +/-5
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DBP Absorption Number of
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93~107
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81~95
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81~95
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Compressed Sample 10-5m3/Kg
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CTAB Surface Area 103m2/Kg
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106~116
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79~87
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38~46
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Nitrogen Surface Area 103m2/Kg
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114~124
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78~88
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38~46
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Tint Strength
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110~120
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98~108
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-
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Heating Loss
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3
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2.5
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2.5
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Ash
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0.5
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0.5
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0.5
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Tensile Strength Map ≥
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-0.8
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-1.5
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-3.5
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Extension% ≥
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10
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-10
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-10
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Map Modulus at 300%
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-2.5 +/-1.3
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-1.7 +/-1.3
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-1.7 +/-1.3
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Properties: it is fine-grained or powder with colour of pure black. It mainly
contains carbon, but also contains a small amount of hydrogen, oxygen, sulfur,
ash, tar and water. It is insoluble in water or ethanol.
Application: It is used for making high, middle and low grade ink, paint,
printing, dyeing, rubber reinforcing agent, filler plastic products and also used
for rendering, anti-ultraviolet light or conductive productions.