1-Bromo-2-methylnaphtalene - Names and Identifiers
1-Bromo-2-methylnaphtalene - Physico-chemical Properties
Molecular Formula | C11H9Br
|
Molar Mass | 221.09 |
Density | 1.418 g/mL at 25 °C (lit.) |
Boling Point | 296 °C (lit.) |
Flash Point | >230°F |
Water Solubility | Not miscible in water. |
Vapor Presure | 0.00195mmHg at 25°C |
Appearance | Transparent yellow liquid |
Color | Clear yellow |
BRN | 2042531 |
Storage Condition | Inert atmosphere,Room Temperature |
Refractive Index | n20/D 1.648(lit.) |
MDL | MFCD00003871 |
1-Bromo-2-methylnaphtalene - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin.
R11 - Highly Flammable
|
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 - Wear suitable protective clothing.
S24/25 - Avoid contact with skin and eyes.
|
WGK Germany | 3 |
HS Code | 29039990 |
1-Bromo-2-methylnaphtalene - Introduction
It is an organic compound with the chemical formula C11H9Br. It is a yellow crystalline solid, insoluble in water, but soluble in many organic solvents. The following is a detailed description of the properties, uses, methods of manufacture and safety information:
Nature:
-Appearance: Yellow crystalline solid
-Molecular weight: 241.10g/mol
-Melting point: 44-47 ° C
-Boiling Point: 305-308 ° C
-Density: 1.41g/cm³
-Solubility: Insoluble in water, soluble in ethanol, dimethylformamide and chloroform
Use:
It is mainly used as a reagent and intermediate in organic synthesis. It is frequently used as a precursor for substituents or fluorescent dyes in the preparation of other organic compounds. In addition, it can also be used as a starting material for the preparation of organometallic complexes.
Method:
The main preparation methods are as follows:
-obtained by the reaction of 2-methylnaphthalene and hydrogen bromide under acidic conditions.
-can be 2-methyl naphthalene and bromine propane in the presence of a solvent to carry out nickel hydrogenation catalytic reaction to synthesis.
Safety Information:
It belongs to organic bromine compounds, which may have certain toxicity. Always take appropriate personal protective measures during use and handling, including wearing protective glasses, protective gloves and laboratory clothing. During storage, it should be sealed to avoid contact with combustibles or oxidants. Local environmental regulations should be observed when disposing of waste.
Last Update:2024-04-10 22:29:15