Pigment Red 31
- CAS NO.:6448-96-0
- Empirical Formula: C31H23N5O6
- Molecular Weight: 561.54
- MDL number: MFCD00071992
- EINECS: 229-246-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-12 09:16:02
What is Pigment Red 31?
The Uses of Pigment Red 31
Pigment Red 31 (CAS# 6448-96-0) is an organic azo dye used as a colourant and pigment in a variety of applications, such as in inkjet printer ink. Pigment Red 31 interacts with Laponite RD to form a hydrophobic fluorescent organic pigment, a useful analytical reagent.
Flammability and Explosibility
Not classified
Properties and Applications
|
TEST ITEMS |
SPECIFICATION |
|
APPEARANCE |
RED POWDER |
|
SHADE |
BLUISH |
|
HEAT RESISTANCE |
180 °C min |
|
LIGHT FASTNESS |
6~7 |
|
ACID RESISTANCE |
5 |
|
ALKALI RESISTANCE |
5 |
|
FASTNESS TO BLEEDING |
4 |
|
OIL ABSORPTION |
40-50% |
|
SPECIFIC SURFACE |
28 m 2 /g |
|
DENSITY |
1.40 g/cm 3 |
|
RESIDUE ON 80 MESH |
5.0% max |
|
WATER SOLUBLE |
1.0% max |
|
VOLATITE 105 °C |
1.0% max |
|
TINTING STRENGTH |
100-105 % |
Properties of Pigment Red 31
| Boiling point: | 703.3±60.0 °C(Predicted) |
| Density | 1.37 |
| vapor pressure | 0Pa at 25℃ |
| pka | 11.10±0.70(Predicted) |
| Water Solubility | 7.22ng/L at 25℃ |
| CAS DataBase Reference | 6448-96-0(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Pigment Red 31 (6448-96-0) |
Safety information for Pigment Red 31
Computed Descriptors for Pigment Red 31
Pigment Red 31 manufacturer
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