1,8-NAPHTHALENEDIOL
naphthalene-1,8-diol
CAS: 569-42-6
Molecular Formula: C10H8O2
1,8-NAPHTHALENEDIOL - Names and Identifiers
| Name | naphthalene-1,8-diol |
| Synonyms | 1,8-NAPHTHALENEDIOL 1,8-Naphthalenediol Naphthalene-1,8-diol naphthalene-1,8-diol 1,8-dihydroxynaphtalene 1,8-DIHYDROXYNAPHTHALENE 1,8-Dihydroxynaphthalene |
| CAS | 569-42-6 |
| EINECS | 209-316-5 |
| InChI | InChI=1/C10H8O2/c11-8-5-1-3-7-4-2-6-9(12)10(7)8/h1-6,11-12H |
1,8-NAPHTHALENEDIOL - Physico-chemical Properties
| Molecular Formula | C10H8O2 |
| Molar Mass | 160.17 |
| Density | 1.33 |
| Melting Point | 137-143 °C |
| Boling Point | 140 °C(Press: 10 Torr) |
| Flash Point | 193.5°C |
| Vapor Presure | 3.62E-06mmHg at 25°C |
| BRN | 2044947 |
| pKa | 6.36±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.725 |
| MDL | MFCD00042701 |
1,8-NAPHTHALENEDIOL - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
| WGK Germany | 3 |
1,8-NAPHTHALENEDIOL - Introduction
naphthalene-1,8-diol is an organic compound with the chemical formula C10H8O2. It is composed of two hydroxyl groups on the 1 and 8 positions on the naphthalene molecule. The following is a detailed description of the properties, uses, preparation and safety information of naphthalene-1,8-diol:
Nature:
naphthalene-1,8-diol is a white to light yellow crystalline solid with a special aroma. It has a melting point of 125-129 degrees Celsius and a boiling point of 338 degrees Celsius. It has low solubility in water and high solubility in organic solvents. It can form an associated hydrogen bond, so it has a strong self polymerization.
Use:
naphthalene-1,8-diol has a wide range of uses in the chemical field. It is an important intermediate in organic synthesis and can be used to prepare compounds such as phenolic resins, photosensitizers and dyes. In addition, it can also be used as an additive in cosmetics, hair dyes and antibacterial agents.
Preparation Method:
naphthalene-1,8-diol is usually synthesized by a hydrogenation reduction reaction of dinitronaphthalene. First, dinitronaphthalene is reduced with iron powder under acidic conditions to obtain naphthalene-1,8-diol. Hydrogen is often used as a reducing agent in the reaction, and the reaction temperature and pressure will be controlled according to the specific situation.
Safety Information:
General laboratory safety procedures should be followed when using naphthalene-1,8-diol. Because of its irritation, protective measures should be taken when contacting skin, eyes or respiratory tract. At the same time, long-term exposure or inhalation of naphthalene-1,8-diol may cause health effects, so it is necessary to maintain its reasonable use and storage. When handling the substance, follow the guidance of the Chemical Safety Data Sheet (MSDS) and wear personal protective equipment when necessary. If accidentally inhaled or ingested, should promptly seek medical help.
Nature:
naphthalene-1,8-diol is a white to light yellow crystalline solid with a special aroma. It has a melting point of 125-129 degrees Celsius and a boiling point of 338 degrees Celsius. It has low solubility in water and high solubility in organic solvents. It can form an associated hydrogen bond, so it has a strong self polymerization.
Use:
naphthalene-1,8-diol has a wide range of uses in the chemical field. It is an important intermediate in organic synthesis and can be used to prepare compounds such as phenolic resins, photosensitizers and dyes. In addition, it can also be used as an additive in cosmetics, hair dyes and antibacterial agents.
Preparation Method:
naphthalene-1,8-diol is usually synthesized by a hydrogenation reduction reaction of dinitronaphthalene. First, dinitronaphthalene is reduced with iron powder under acidic conditions to obtain naphthalene-1,8-diol. Hydrogen is often used as a reducing agent in the reaction, and the reaction temperature and pressure will be controlled according to the specific situation.
Safety Information:
General laboratory safety procedures should be followed when using naphthalene-1,8-diol. Because of its irritation, protective measures should be taken when contacting skin, eyes or respiratory tract. At the same time, long-term exposure or inhalation of naphthalene-1,8-diol may cause health effects, so it is necessary to maintain its reasonable use and storage. When handling the substance, follow the guidance of the Chemical Safety Data Sheet (MSDS) and wear personal protective equipment when necessary. If accidentally inhaled or ingested, should promptly seek medical help.
Last Update：2024-04-09 21:11:58
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