B-NAPHTHALDEHYDE
2-Naphthaldehyde
CAS: 66-99-9
Molecular Formula: C11H8O
B-NAPHTHALDEHYDE - Names and Identifiers
| Name | 2-Naphthaldehyde |
| Synonyms | Naphthaldehyde 2-Naphthakdehyde 2-Naphthaldehyde B-NAPHTHALDEHYDE Formylnaphthalene BETA-NAPHTHALDEHYDE 2-Formylanaphthalene 2-naphthaldehyde (beta) naphthalene-2-carbaldehyde 2-naphthalenecarboxaldehyde |
| CAS | 66-99-9 |
| EINECS | 200-640-2 |
| InChI | InChI=1/C11H8O/c12-8-9-5-6-10-3-1-2-4-11(10)7-9/h1-8H |
| InChIKey | PJKVFARRVXDXAD-UHFFFAOYSA-N |
B-NAPHTHALDEHYDE - Physico-chemical Properties
| Molecular Formula | C11H8O |
| Molar Mass | 156.18 |
| Density | 1.6211 |
| Melting Point | 58-61 °C (lit.) |
| Boling Point | 160 °C (19 mmHg) |
| Flash Point | 160°C/19mm |
| Water Solubility | Soluble in hot water. |
| Solubility | Chloroform, Methanol (Sparingly) |
| Vapor Presure | 0.00119mmHg at 25°C |
| Appearance | Pink crystal |
| Color | Off-white to yellow or light beige |
| BRN | 507750 |
| Storage Condition | -20°C |
| Sensitive | Air Sensitive |
| Refractive Index | 1.6211 (estimate) |
| MDL | MFCD00004094 |
| Physical and Chemical Properties | Characteristic patchy crystal. melting point 61~63 ℃ boiling point 160 ℃(2.527kPa) freezing point 1.0755 relative density 1.6211 solubility soluble in ethanol, ether, acetone. |
| Use | For Organic synthesis |
B-NAPHTHALDEHYDE - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3335 |
| WGK Germany | 3 |
| RTECS | QJ0190010 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 29122900 |
B-NAPHTHALDEHYDE - Reference Information
| freezing point | 1.0755 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | 2-naphthalene formaldehyde is an organic intermediate, belonging to aromatic aldehydes. As an important chemical raw material, aromatic aldehydes are widely used in many industrial fields such as medicine, fuel, perfume, pesticide and material. |
| Use | for organic synthesis |
| production method | dry hydrogen chloride is passed through a mixture of anhydrous tin dichloride and anhydrous diethyl ether, after saturation, a solution of 2-naphthonitrile in diethyl ether was added, and hydrogen chloride was added to saturation to form a yellow complex of aldiimide and stannic tetrachloride. The complex was distilled with water vapor, and the white solid product, namely, crude 2-naphthalene formaldehyde, was filtered from the distillate, and distilled under reduced pressure to obtain a pure product with a yield of about 70%. |
Last Update：2024-04-09 21:04:16
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