2-Methylnaphthalene
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Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
91-57-6
Petroleum grade α-methylnaphthalene is made from reformed aromatics as raw material, separated by effective distillation, and the content of β-methylnaphthalene is more than 95%.
| Name | 2-Methylnaphthalene |
| Synonyms | 2-methyl 2-Methylnaphth Methylnaphthalene 2-Methylnaphthalene β-Methylnaphthalene 2-methyl-naphthalen 2-methyInaphthalene 2-METHYLNAPHTHALENE Methyl-2-naphthalene Para-Aminoacetanilide Naphthalene,2-methyl- naphthalene,beta-methyl 2-Methylnaphthalene (beta) |
Physico-chemical Properties
| Molecular Formula | C11H10 |
| Molar Mass | 142.2 |
| Density | 1.01 |
| Melting Point | 34-36°C(lit.) |
| Boling Point | 241-242°C(lit.) |
| Flash Point | 208°F |
| Water Solubility | 0.00246 g/100 mL |
| Solubility | 0.025g/l |
| Vapor Presure | 5.4 (extrapolated, Mackay et al., 1982) |
| Appearance | Crystalline Low Melting Solid |
| Color | White |
| Exposure Limit | ACGIH: TWA 0.5 ppm (Skin) |
| BRN | 906859 |
| Storage Condition | 2-8°C |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.6019 |
| Physical and Chemical Properties | White or pale yellow monoclinic crystals or fused crystals. boiling point 241 ℃ freezing point 34.5 ℃ relative density 1.0058 refractive index 1.6019 solubility insoluble in water, soluble in organic solvents such as ethanol and ether. |
| Use | Production of vitamin K3 raw materials, oral contraceptives, synthetic plant growth inhibitors, also used as surfactants, water reducing agents, dispersants, etc |
91-57-6 – Risk and Safety
| Risk Codes | R22 – Harmful if swallowed R36/37/38 – Irritating to eyes, respiratory system and skin. R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R63 – Possible risk of harm to the unborn child R43 – May cause sensitization by skin contact R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed. R45 – May cause cancer R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R67 – Vapors may cause drowsiness and dizziness R40 – Limited evidence of a carcinogenic effect |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 – Wear suitable gloves and eye/face protection S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 – Wear suitable protective clothing and gloves. S24/25 – Avoid contact with skin and eyes. S23 – Do not breathe vapour. S53 – Avoid exposure – obtain special instructions before use. S36 – Wear suitable protective clothing. S29 – Do not empty into drains. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 2 |
| RTECS | QJ9635000 |
| TSCA | Yes |
| HS Code | 29029080 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | Acute oral LD50 for rats 1,630 mg/kg (quoted, RTECS, 1985). |
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