Carbon Black N-991 UP

There are some applications where Carbon Black requires ultra purity. It means concentration of heavy metals and other impurities should be at extremely low levels to fulfil additional norms and customer requirements.


Iodine adsorption number [g/kg]9±3ASTM D 1510
Oil absorption number [cm3/100g]42±5ASTM D 2414
pH-value7-11ASTM D 1512
Heating loss at 125°C [%], max.0.4ASTM D 1509
Ash content [%], max.0.2ASTM D 1506
Sieve residue: 0.045 [%], max.0.08ASTM D 1514

Note: The above-mentioned values do not constitute a specification or certification for a particular shipment,
but merely represent values, based on analysis of spot samples from previous productions.

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