|
| | Solvent Red 24 Basic information |
| | Solvent Red 24 Chemical Properties |
| Melting point | 199 °C (dec.)(lit.) | | Boiling point | 260°C | | density | 1.1946 (rough estimate) | | vapor pressure | 0Pa at 25℃ | | refractive index | 1.6000 (estimate) | | storage temp. | Flammables area | | solubility | Insoluble in water; soluble in benzene, methanol, acetone, isopropanol; slightly soluble in ethanol | | form | Powder/Solid | | Colour Index | 26105 | | pka | 13.52±0.50(Predicted) | | color | Red Brown | | Water Solubility | 23μg/L at 25℃ | | λmax | 520 nm, 357 nm | | Merck | 14,8393 | | BRN | 709018 | | Stability: | Stable. Incompatible with strong oxidizing agents. | | Biological Applications | Detecting atherosclerosis; diapers; skin care products; shampoos; hair colors; stents; dental impression materials | | InChIKey | RCTGMCJBQGBLKT-PAMTUDGESA-N | | LogP | 6.66 | | IARC | 3 (Vol. 8, Sup 7) 1987 | | NIST Chemistry Reference | O-tolylazo-o-tolylazo-beta-naphthol(85-83-6) | | EPA Substance Registry System | C.I. Solvent Red 24 (85-83-6) |
| Hazard Codes | Xi,T | | Risk Statements | 36/38-45 | | Safety Statements | 26-36-53-45 | | WGK Germany | 3 | | RTECS | QL5775000 | | TSCA | Yes | | HazardClass | IRRITANT | | HS Code | 32129000 |
| | Solvent Red 24 Usage And Synthesis |
| Chemical Properties | dark red to brown crystals or powder | | Uses | Solvent Red 24 has been used to promote wound healing and biological stain.
| | Uses | Fat stain. | | Uses | It has been used to promote wound healing. Biological stain. Dyes and metabolites, Environmental Testing. | | Preparation | 2-Methyl-4-(o-tolyldiazenyl)benzenamine diazotization, and Naphthalen-2-ol coupling. | | Definition | ChEBI: A bis(azo) compound that is 2-naphthol substituted at position 1 by a {2-methyl-4-[(2-methylphenyl)diazenyl]phenyl}diazenyl group. A fat-soluble dye predominantly used for demonstrating triglycerides in frozen sections, but which may also stain some protei
bound lipids in paraffin sections. | | General Description | Sudan IV is a hydrophobic azo dye. It stains triglycerides and imparts an intense red color. The dye does not stain lipid droplets or phospholipids. | | Flammability and Explosibility | Notclassified | | Safety Profile | Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. | | Properties and Applications | red to blue light red. Red powder, resistance to 5% of hydrochloric acid and sodium carbonate solution. Insoluble in water, soluble in ethanol and acetone, soluble in benzene. In concentrated sulfuric acid to blue light green, dilution have red precipitation. Mainly used in acetate fiber, organic glass, ABS resin, rigid polyvinyl chloride (PVC) and so on the many kinds of plastic coloring, and can also be used to paint and ballpoint ink color, also can be used for polyester fiber colouring.
|
Standard
|
Light Fastness
|
Heat-resistant(℃)
|
water
|
Sodium Carbonate(5%)
|
Hydrochloric acid(5%)
|
|
Melting point
|
Stable
|
|
ISO
|
Good
|
184-185
|
120
|
Insoluble
|
No change
|
No change
|
| | Purification Methods | Crystallise the dye from EtOH/water or acetone/water. [Beilstein 16 IV 249.] |
| | Solvent Red 24 Preparation Products And Raw materials |
|
