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.

TECHNICAL SPECIFICATION

QUALITY PARAMETER VALUE TEST METHOD
Iod­i­ne adsorp­ti­on num­ber [g/kg] 9±3 ASTM D 1510
Oil absorp­ti­on num­ber [cm3/100g] 42±5 ASTM D 2414
pH-value 7-11 ASTM D 1512
Hea­ting loss at 125°C [%], max. 0.4 ASTM D 1509
Ash con­tent [%], max. 0.2 ASTM D 1506
Sie­ve resi­due: 0.045 [%], max. 0.08 ASTM 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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