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- Chemical Name: 2-Methylnaphthalene
- CAS No.: 91-57-6
- Molecular Fomula: ：C11H10
- Molecular weight：142.2
- Appearance:Yellow monoclinic crystal
- Sample：Available
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Description of Naphthalene
- 2-Methylnaphthalene is a polycyclic aromatic hydrocarbon (PAH). Several enzyme biodegrate 2-Naphthalene in anaerobic condition. ; On February 22, 2014, NASA announced a greatly upgraded database for detecting and monitoring PAHs, including 2-Methylnaphthalene, in the universe. According to NASA scientists, over 20% of the carbon in the universe may be associated with PAHs, possible starting materials for the formation of life. PAHs seem to have been formed shortly after the Big Bang, are abundant in the universe, and are associated with new stars and exoplanets.
Basic Info of Naphthalene
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | 2-Methylnaphthalene |
| Synonyms | NAPHTHALENE, 2-METHYL-;beta-Methylnaphthalene; |
| CAS No. | 91-57-6 |
| Molecular Formula | C11H10 |
| Molecular Weight | 142.19700 |
| PSA | 0.00000 |
| LogP | 3.14820 |
Numbering system
| EINECS number | 202-078-3 |
| MDL number | MFCD00004118 |
Properties
| Appearance & Physical State | solid |
| Density | 1.01 |
| Boiling Point | 241-242ºC |
| Melting Point | 32-36ºC |
| Freezing Point | 34.5℃ |
| Flash Point | 97ºC |
| Refractive Index | 1.6019 |
| Water Solubility | 0.00246 g/100 mL |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Storage Condition | 2-8ºC |
Safety Info
| RTECS | QJ9635000 |
| Hazard Class | 9 |
| Safety Statements | S61 |
| HS Code | 29029080 |
| Packing Group | III |
| WGK Germany | 2 |
| RIDADR | UN 3077 |
| Risk Statements | R22; R51/53 |
| Hazard Codes | Xn; N |
What is 2-Methylnaphthalene?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 2-Methylnaphthalene which has developed particularly rapidly in recent years. Do you know about 2-Methylnaphthalene?
- The official answer：White or light yellow monoclinic crystals or fused crystals. Insoluble in water, soluble in organic solvents such as ethanol and ether Melting point 34-36°C(lit.) Boiling point 241-242°C(lit.) Density 1.01 Vapor pressure 5.4(extrapolated, Mackayetal.,1982) Refractive index 1.6019 Flashpoint 208°F Storage conditions 2-8°C Solubility 0.025g/l MorphologyCrystallineLowMeltingSolid.
What’s the application of 2-Methylnaphthalene?
- Used as raw material for the production of vitamin K3, used in the synthesis of plant growth inhibitors, surfactants, water-reducing agents, dispersants, etc. In medicine, used as an intermediate in the production of vitamin K3, oxidation to produce β-naphthol, for long-acting or short-acting oral contraceptives. Agricultural synthesis of plant growth regulator, DDT emulsifier; after sulfonation can be used as a descaling agent, but also used as a raw material for fiber dyeing aid, wetting agent, surfactant, etc. It is used as raw material for the production of vitamin K3, oral contraceptive, synthetic plant growth inhibitor, and also used as a surfactant, water-reducing agent, dispersant, etc. It can also be used for the oxidation of β-naphthol, which can be used in the production of contraceptives, plant growth regulators, textile printing and dyeing auxiliaries, surfactants, etc. Used in the production of vitamin K3; used in the synthesis of plant growth inhibitors uses the production of vitamin K3, the production of oral contraceptives, synthetic plant growth inhibitors, textile printing and dyeing auxiliaries, surfactants, feed additives important intermediates, and β a methyl naphthoquinone as an electron transfer agent involved in biological photosynthesis, but also to synthesize a variety of biologically active pharmaceutical products.
Conclusion
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