1-Methylnaphthalene
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Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
90-12-0
Petroleum grade α-methyl naphthalene is made from reformed aromatic hydrocarbons as raw material, separated by effective distillation, and the content of α-methyl naphthalene is more than 95%.
| 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) |
Physico-chemical Properties
| 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 |
90-12-0 – Risk and Safety
| 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 |
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