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Test Items

Typical Value

Product List

Fe2O3 content (%)

96 <

R103
R105
R107
R109
R111
R115
R118
R125
R127
R133
R135
R147
R152
R155
R162
R167
R175

R100
R200
R220

R300*
R400
R500

Oil Absorption (g/100g)

15-25

Apparent Density (g/cm3)

0.4

Residue on 325 mesh (%)

0.06, 0.1*,
0.3 ÷

Water Soluble Salts (%)

< 0.3

Ignition Loss (%)

< 1

Moisture content (%)

< 1

pH

5-7

Fineness (NS)

4-6
-

Particle Shape

Spherical

Predominant Particle Size (レm)

0.1 - 1.0

 

Test Items

Typical Value

Product List

Fe2O3 content (%)

85-75

Y810
Y820
Y830
Y840
Y850

 

Oil Absorption (g/100g)

25-35

Apparent Density (g/cm3)

-

Residue on 325 mesh (%)

0.08

Water Soluble Salts (%)

< 0.3

Ignition Loss (%)

12

Moisture content (%)

< 1

pH

5-7

Fineness (NS)

4

Particle Shape

Needle

Predominant Particle Size (レm)

0.1-1.0

 

Test Items

Typical Value

Product List

Fe2O3 content (%)

-

Or908
Or929
Or9840

Or905
Or911
Or914
Or928
Or930
Or935
Or954
Or965
Or970
Or9810
Or9819
Or9830
Or9850

Oil Absorption (g/100g)

20-35

Apparent Density (g/cm3)

-

Residue on 325 mesh (%)

0.05-0.3, 1.5

Water Soluble Salts (%)

< 0.3

Ignition Loss (%)

1-5

Moisture content (%)

< 1

pH

5-7

Fineness (NS)

-

Particle Shape

Mixture

Predominant Particle Size (レm)

-

 

Test Items

Typical Value

Product List

Fe2O3 content (%)

87-97

Br616
Br628
Br665

Br607
Br609
Br615
Br619
Br630
Br650
Br655
Br670
Br680

Oil Absorption (g/100g)

20-35

Apparent Density (g/cm3)

-

Residue on 325 mesh (%)

0.1-0.3
0.5-1

Water Soluble Salts (%)

< 0.3

Ignition Loss (%)

1-5

Moisture content (%)

< 1

pH

3-7

Fineness (NS)

5-7
*-

Particle Shape

Mixture

Predominant Particle Size (レm)

-

 

Test Items

Typical Value

Product List

Fe3O4 content (%)

95

B330

 

Oil Absorption (g/100g)

22

Apparent Density (g/cm3)

-

Residue on 325 mesh (%)

0.1

Water Soluble Salts (%)

< 0.3

Ignition Loss (%)

1-5

Moisture content (%)

< 1

pH

5-8

Fineness (NS)

-

Particle Shape

 

Predominant Particle Size (レm)

-