Iron oxide red

Fe2O3 / Fe3O4 %min --- 96

Color difference vs standard, max --- 1.0

Tinting Srength Vs Standard ,% --- 95-105

PH-value, range ---- 4-7

Sieve residue on 0.045mm-mesh,%max  ----  0.3

Oil absorption, range----15-25

Water soluble salts,% max----0.5

Volatiles at 105,%max---- 0.8

Loss on ignition At 1000 °C& 0.5hour,%max----0.5

Density  (approx g/cm3 )----0.7-1.1
Iron oxide yellow

Fe2O3 / Fe3O4 %min --- 86

Color difference vs standard, max --- 1.0

Tinting Srength Vs Standard ,% --- 95-105

PH-value, range ---- 3-7

Sieve residue on 0.045mm-mesh,%max  ----  0.3

Oil absorption, range----25-35

Water soluble salts,% max----0.3

Volatiles at 105,%max---- 0.8

Loss on ignition At 1000 °C& 0.5hour,%max----0.5

Density  (approx g/cm3 )----0.4-0.6

Iron oxide black

Fe2O3 / Fe3O4 %min --- 95

Color difference vs standard, max --- 1.0

Tinting Srength Vs Standard ,% --- 95-105

PH-value, range ---- 4-7

Sieve residue on 0.045mm-mesh,%max  ----  0.3

Oil absorption, range----15-25

Water soluble salts,% max----0.5

Volatiles at 105,%max---- 0.5

Loss on ignition At 1000 °C& 0.5hour,%max----0.4

Density  (approx g/cm3 )---- 0.9-1.2

Iron oxide green

Fe2O3 / Fe3O4 %min --- 95

Color difference vs standard, max --- 1.0

Tinting Srength Vs Standard ,% --- 95-105

PH-value, range ----  3.5-7

Sieve residue on 0.045mm-mesh,%max  ----  0.3

Oil absorption, range----25-35

Water soluble salts,% max----0.5

Volatiles at 105,%max---- 0.5

Loss on ignition At 1000 °C& 0.5hour,%max---- 0.3

Density  (approx g/cm3 )----  0.4-0.8

Iron oxide blue

Fe2O3 / Fe3O4 %min --- 95

Color difference vs standard, max --- 1.0

Tinting Srength Vs Standard ,% --- 95-105

PH-value, range ----  3-7

Sieve residue on 0.045mm-mesh,%max  ----  0.3

Oil absorption, range----15-25

Water soluble salts,% max----0.5

Volatiles at 105,%max---- 0.5

Loss on ignition At 1000 °C& 0.5hour,%max---- 0.5

Density  (approx g/cm3 )----  0.4-0.8