We can supply Benzimidazolone serious pigment in consistent quality,which enjoy many advanteage among the Chinese Suppliers.:
Pigment Red Series:
UN8164 --- Benzimidazolone Red HF2B (Pigment Red 208 )
UN8163 --- Permanent Carmine HF4C (Pigment Red 185 )
UN8160 --- Fast Carmine HF3C ( Pigment Red 176 )
UN8159 --- Benzimidazolone Red HFT ( Pigment Red 175 )
UN8158 --- Fast Carmine HFM ( Pigment Red 171 )
UN8164 --- Benzimidazolone Red HF2B (Pigment Red 208)
CAS No.:31778-10-6
EU No.: 250-800-0
C.I. NO.: 12514
Formula: C29H25N5O5
Molecular weight: 523.54
Structural formula:

Properties:
Light Fastness: 7~ 8
Heat Fastness: 250 °C
Water Fastness: 5
Linseed Oil: 5
Acid: 5
Alkali: 5
Shade |
Blueish |
Specific Gravity (g/cm3 H2O =1) |
1.42 |
Bulk density (lb/gal) |
11.2~11.6 |
Melting point (°C) |
>300 |
Average partical (nm) |
50 |
Surface area (m2/ g) |
50;65 |
PH value |
6.5 |
Oil absorption(g/100g) |
45 ± 5 |
Tinting strength |
Transparent |
UN8163 --- Permanent Carmine HF4C (Pigment Red 185)
CAS No.: 51920-12-8
61951-98-2
EU No.: 257-515-0
263-353-1
C.I. NO.: 12516
Formula: C27H24N6O6S
Molecular weight: 560.63
Structural formula:

Properties:
Light Fastness: 7~ 8
Heat Fastness: 250 °C
Water Fastness: 5
Linseed Oil: 5
Acid: 5
Alkali: 5
Shade |
Blueish |
Specific Gravity (g/cm3 H2O =1) |
1.45 |
Bulk density (lb/gal) |
11.2~11.6 |
Melting point (°C) |
345~355 |
Average partical (nm) |
180 |
Surface area (m2/ g) |
45 ; 43~47 |
PH value |
6.5 |
Oil absorption(g/100g) |
45 ± 5 |
Tinting strength |
Transparent |
UN8160 --- Fast Carmine HF3C (Pigment Red 176)
CAS No.: 12225-06-8
EU No.: 235-425-2
C.I. NO.: 12515
Formula: C32H24N6O5
Molecular weight: 572.57
Structural formula:

Properties:
Light Fastness: 7~ 8
Heat Fastness: 250 °C
Water Fastness: 5
Linseed Oil: 5
Acid: 5
Alkali: 5
Shade |
Blueish |
Specific Gravity (g/cm3 H2O =1) |
1.45 |
Bulk density (lb/gal) |
11.2~11.6 |
Melting point (°C) |
345~355 |
Average partical (nm) |
120 |
Surface area (m2/ g) |
61;75~79 |
PH value |
5.5 |
Oil absorption(g/100g) |
45 ± 5 |
Tinting strength |
Transparent |
UN8159 --- Benzimidazolone Red HFT ( Pigment Red 175 )
CAS No.: 6985-92-8
EU No.: 230-249-2
C.I. NO.: 12513
Formula: C26H19N5O5
Molecular weight: 481.46
Structural formula:

Properties:
Light Fastness: 7~ 8
Heat Fastness: 250 °C
Water Fastness: 5
Linseed Oil: 5
Acid: 5
Alkali: 5
Shade |
Yellowish |
Specific Gravity (g/cm3 H2O =1) |
1.48 |
Bulk density (lb/gal) |
11.6~12.6 |
Melting point (°C) |
340 |
Average partical (nm) |
100 |
Surface area (m2/ g) |
5;62 |
PH value |
6.5 |
Oil absorption(g/100g) |
45 ± 5 |
Tinting strength |
Transparent |
Re: UN8158 --- Fast Carmine HFM (Pigment Red 171)
CAS No.: 6985-95-1
C.I. NO.: 12512
Formula: C25H18N6O6
Molecular weight: 498.45
Structural formula:

Properties:
Light Fastness: 7~ 8
Heat Fastness: 250 °C
Water Fastness: 5
Linseed Oil: 5
Acid: 5
Alkali: 5
Shade |
|
Specific Gravity (g/cm3 H2O =1) |
1.35 ~ 1.40 |
Bulk density (lb/gal) |
11.2~11.6 |
Melting point (°C) |
350 |
Average partical (nm) |
0.10 |
Surface area (m2/ g) |
45 |
PH value |
6.5 |
Oil absorption(g/100g) |
45 ± 5 |
Tinting strength |
Transparent |
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