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Quality Chemicals for the Rubber industry




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Carbon Black / N650

Characteristics

N650 is a medium-dispersion, medium-active, low-structure carbon black, used for industrial rubber goods.  It provides higher die-swell and high resilience at relatively high hardness. N650 may be incorporated in large quantities and can be used as compounds for tire carcasses and tubes. Used for moulded goods, goods extrusion, industrial rubber products, sleeves, one-layer roofing systems and isolating cable rubbers.

 

CHEMICAL AND PHYSICAL PROPERTIES OF N650 CARBON BLACK

GRADE

 

ASTM TEST

N-650

Iodine absorption

g/kg

D 1510

36±3

DBP absorption

10-5m3/kg

D 2424

122±4

CTAB surface area

m2/kg

D 3765

31-41

Heating loss

@ 125 °C

D 1509

0.50

Ash content

% max

D 1506

0.50

Sieve residue N 325

% max

D1514

0.05

Fine Content

% max

D 1508

10

Pour density

kg/m3

D 1513

370±40

Sulphur content

% max

D 1619

1.10

Colour strength

%

D 3265

-

DBP absorption after pressing

10-5m3/kg

D 3493

80-88

pH value

 

D 1512

6-9

Toluol extract

%  min

D 1618

75

Pellet hardness

mpa

D 3303

15-100