ACID ORANGE 8
- CAS NO.：5850-86-2
- Empirical Formula: C17H13N2NaO4S
- Molecular Weight: 364.35
- MDL number: MFCD00003895
- EINECS: 227-458-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:27
What is ACID ORANGE 8?
The Uses of ACID ORANGE 8
Acid Orange 8 is a dye/stain. Dyes and metabolites.
Preparation
4-Amino-3-methylbenzenesulfonic acid?diazo, and Naphthalen-2-ol coupling.
Flammability and Explosibility
Non flammable
Purification Methods
Salt it out three times with sodium acetate, then extract it repeatedly with EtOH and dry.
Properties and Applications
red light orange. For red orange is soluble in water, soluble in soluble fiber element, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid for blue-ray in red, yellow and orange solution diluted into and precipitation; In nitric acid solution for wine red and then into orange. Its water solution and strong hydrochloric acid is cherry red; Add sodium hydroxide with brown precipitation. Used for wool, silk, cotton, vinegar, polyamide fiber and fiber dyeing. Also used for paper, leather dyeing, the heavy metal salt used in organic pigments.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 1 | 2 | 3 | 1 | 3 | 2-3 | 1 |
| AATCC | 4 | 1 | 1 | 3 | 2 | 2 | 1 | 1 |
Properties of ACID ORANGE 8
| Density | 1.525[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Amber Vial, Refrigerator, Under inert atmosphere |
| solubility | Methanol (Slightly), Water (Slightly) |
| form | Solid |
| Colour Index | 15575 |
| color | Dark Orange to Very Dark Red |
| Water Solubility | 26.83g/L at 20℃ |
| EPA Substance Registry System | C.I. Acid Orange 8, monosodium salt (5850-86-2) |
Safety information for ACID ORANGE 8
Computed Descriptors for ACID ORANGE 8
New Products
2-Ethoxyphenol Methyl 2-methoxy-5-sulfamoylbenzoate Ethyl 2-chloro-2-(2-(4-methoxyphenyl)hydrazono)acetate 3,6-Dichloropyridazine 3,6-Dichloro-4-Isopropylpyridazine 2-[(2-Ethoxyphenoxy)methyl]oxirane m-Tolualdehyde p-Anisaldehyde 2-Bromobenzaldehyde 4-Fluorobenzaldehyde 1-Propyl-4-piperidone 3-Amino-3-(3-fluorophenyl)propanoic acid 6-Methyl-2-pyridinemethanol 2-Pyridinecarboxaldehdye tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate 1-Indanone 2-Chloromethyl-6-methyl-pyridine 4-Morpholinoaniline Abiraterone Ethyl Ether 1-nitro-3,5-dimethyl adamantine (NMEM) Vardenafil Bis-sulphonamide(Dimer) 3-(2-aminoethyl) benzene sulfonamide Nabumetone Impurity 5 2,2-dibromo-1-cyclopropyl-2-(2-fluorophenyl)ethan-1-oneRelated products of tetrahydrofuran
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