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| Feature | Good stability |
| Classification | Paint Additives |
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Petroleum methyl naphthalene is a colorless oily liquid, by the high boiling point of aromatic hydrocarbon solvents of deep processing products. It has a naphthalene-like odor, can be volatilized with steam, insoluble in water, soluble in ether and ethanol.
| Name | 1-Methylnaphthalene |
| Synonyms | FEMA 3193 femanumber3193 1-Methylnaphthalene A-METHYLNAPHTHALENE 1 Methyl Napthalene α-Methylnaphthalene Methyl-1-naphthalene Naphthalene,1-methyl- ALPHA-METHYLNAPHTHALENE naphthalene,alpha-methyl 1-methylnaphthalene (alpha) |
| Molecular Formula | C11H10 |
| Molar Mass | 142.2 |
| Density | 1.001g/mLat 25°C(lit.) |
| Melting Point | −22°C(lit.) |
| Boling Point | 240-243°C(lit.) |
| Flash Point | 180°F |
| JECFA Number | 1335 |
| Water Solubility | 0.026 g/L (25 ºC) |
| Solubility | 0.026g/l |
| Vapor Presure | 2 hPa (25 °C) |
| Appearance | Liquid |
| Color | Clear colorless to yellow |
| Exposure Limit | ACGIH: TWA 0.5 ppm (Skin) |
| BRN | 506793 |
| pKa | 37(at 25℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, oxygen. |
| Explosive Limit | 0.7-6.5%(V) |
| Refractive Index | n20/D 1.615(lit.) |
| Physical and Chemical Properties | Character: colorless oily liquid with naphthalene-like odor. melting point -30.6 ℃ boiling point 244.6 ℃ relative density 1.0202 refractive index 1.6170 flash point 82.2 ℃ solubility insoluble in water, soluble in ether and ethanol. |
| Use | Used as surfactant, water reducing agent, dispersant, drug and other organic synthesis of raw materials |
| Risk Codes | R22 – Harmful if swallowed R36/37/38 – Irritating to eyes, respiratory system and skin. R42/43 – May cause sensitization by inhalation and skin contact. R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R39/23/24/25 – R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S7 – Keep container tightly closed. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 – Wear suitable protective clothing and gloves. S23 – Do not breathe vapour. S36 – Wear suitable protective clothing. |
| UN IDs | UN 3082 9/PG 3 |
| WGK Germany | 2 |
| RTECS | QJ9630000 |
| TSCA | Yes |
| HS Code | 29029080 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 1840 mg/kg |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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