C.I.Oxidation Base 15
2-Nitroso-1-naphthol
CAS: 132-53-6
Molecular Formula: C10H7NO2
C.I.Oxidation Base 15 - Names and Identifiers
| Name | 2-Nitroso-1-naphthol |
| Synonyms | C.I. 76610 Nitroso-1-napht 2-Nitroso-1-naphthol 2-Nitroiso-1-Naphthol C.I.Oxidation Base 15 1-Naphthol, 2-nitroso- 2-nitroso-1-naphthaleno 2-nitroso-1-Naphthalenol 2-nitrosonaphthalen-1-ol 1-Naphthalenol,2-nitroso- 2-nitrosonaphthalen-1-olate 1,2-NaphthoquinoneiMine-2-oxiMe 2-nitroso-1-naphthol (beta-alpha) |
| CAS | 132-53-6 |
| EINECS | 205-064-5 |
| InChI | InChI=1/C10H7NO2/c12-10-8-4-2-1-3-7(8)5-6-9(10)11-13/h1-6,12H/p-1 |
C.I.Oxidation Base 15 - Physico-chemical Properties
| Molecular Formula | C10H7NO2 |
| Molar Mass | 173.17 |
| Density | 1.2427 (rough estimate) |
| Melting Point | 150-155°C (dec.)(lit.) |
| Boling Point | 303.81°C (rough estimate) |
| Flash Point | 170.1°C |
| Water Solubility | SLIGHTLY SOLUBLE |
| Solubility | Soluble in methanol; ethanol; acetic acid; acetone, slightly soluble in ether; benzene; chloroform and carbon disulfide, insoluble in water. |
| Vapor Presure | 1.31E-05mmHg at 25°C |
| Appearance | Yellow crystal |
| Color | Yellow needles from H2O or C6H6 |
| Odor | Odorless |
| BRN | 1867919 |
| pKa | 7.47±0.10(Predicted) |
| Storage Condition | RT, dark |
| Refractive Index | 1.5200 (estimate) |
| MDL | MFCD00003932 |
| Physical and Chemical Properties | Yellow needle-like crystals. Melting point 162-164 °c. Soluble in methanol, ethanol, acetic acid, acetone, slightly soluble in ether, benzene, chloroform and carbon disulfide, insoluble in water. Soluble in organic solvent leaf orange yellow, soluble in concentrated sulfuric acid is dark red, can be volatilized with water vapor. |
| Use | Used as a reagent for the determination of cobalt, palladium, copper and zirconium |
C.I.Oxidation Base 15 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| RTECS | QL4550000 |
| FLUKA BRAND F CODES | 8 |
| Toxicity | LD orl-rat: >500 mg/kg NCNSA6 5,35,53 |
C.I.Oxidation Base 15 - Introduction
Soluble in organic solvent leaves orange yellow, soluble in concentrated sulfuric acid is dark red, can volatilize with water vapor.
Last Update：2022-10-16 17:13:23
C.I.Oxidation Base 15 - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used to determine cobalt, zirconium, copper, iron and palladium. It can also be used in organic synthesis. Used as a reagent for the verification of cobalt, palladium, copper and zirconium |
| production method | is obtained by nitrosation of 1-naphthol. 1. After nitrosation dissolves sodium hydroxide in water, 1-naphthol is added after stirring. Filter, keep the filtrate at 0-5 ℃, add drought sodium nitrite aqueous solution, add acetic acid slowly after adding. Then adjust the pH with 1:4 dilute hydrochloric acid so that the Congo red test paper is blue. Use starch potassium iodide test paper to control, continue stirring for half an hour, filter out the nitrate, wash the water until it is not acidic, and dry. 2. The nitrosation of the isomer is removed and 4-nitroso -1-naphthol is also generated. The potassium hydroxide can be removed by the following method. After dissolving potassium hydroxide in alcohol, dry nitrate is slowly added under stirring. At this time, the reaction temperature is kept at 60 ℃, after adding, stirring is continued for 10min. Cool, filter out the coarse product, add ethanol to soak, and filter. Finally refined to obtain the finished product. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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View History
C.I.Oxidation Base 15
DIETHYL HYDROXYMETHYLPHOSPHONATE
SODIUM FLUORIDE INSECT CELL CULTURE*
RARECHEM AH PB 0129
DIETHYL HYDROXYMETHYLPHOSPHONATE
SODIUM FLUORIDE INSECT CELL CULTURE*
RARECHEM AH PB 0129