Pigment Red 23
- CAS NO.：6471-49-4
- Empirical Formula: C24H17N5O7
- Molecular Weight: 487.42
- MDL number: MFCD00071991
- EINECS: 229-313-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:07:02
What is Pigment Red 23?
Chemical properties
red powder
General Description
Red to bluish red powder.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
Pigment Red 23 is sensitive to light and may be sensitive to heat. Pigment Red 23 is incompatible with strong oxidizing agents. . Pigment Red 23 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Fire Hazard
Flash point data for Pigment Red 23 are not available. Pigment Red 23 is probably combustible.
Flammability and Explosibility
Not classified
Properties and Applications
|
TEST ITEMS |
SPECIFICATION |
|
APPEARANCE |
RED POWDER |
|
SHADE |
YELLOWISH |
|
HEAT RESISTANCE |
140 °C min |
|
LIGHT FASTNESS |
6~7 |
|
ACID RESISTANCE |
5 |
|
ALKALI RESISTANCE |
4 |
|
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 23
| Melting point: | 330-340°C |
| Boiling point: | 583.02°C (rough estimate) |
| Density | 1.4576 (rough estimate) |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.7500 (estimate) |
| storage temp. | Amber Vial, -20°C Freezer |
| solubility | Basic DMSO (Slightly), DMSO (Very Slightly), Methanol (Slightly) |
| form | Solid |
| pka | 11.07±0.70(Predicted) |
| color | Dark Red |
| Water Solubility | <0.1 g/100 mL at 22 ºC |
| Stability: | Stable, but light sensitive. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 6471-49-4(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Pigment Red 23 (6471-49-4) |
Safety information for Pigment Red 23
Computed Descriptors for Pigment Red 23
Pigment Red 23 manufacturer
Mehul Dye Chem Industries
Saujanya Dyestuffs
Advaitya Dye Chem
Jaffs Dyechem Private Limited
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