p-Nitrosodimethylaniline - Names and Identifiers
p-Nitrosodimethylaniline - Physico-chemical Properties
Molecular Formula | C8H10N2O
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Molar Mass | 150.178 |
Density | 1.04g/cm3 |
Melting Point | 83-86 °C |
Boling Point | 258.7°C at 760 mmHg |
Flash Point | 110.3°C |
Vapor Presure | 0.0135mmHg at 25°C |
Refractive Index | 1.529 |
p-Nitrosodimethylaniline - Risk and Safety
Hazard Symbols | F - Flammable
T - Toxic
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Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed.
R33 - Danger of cumulative effects
R8 - Contact with combustible material may cause fire
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Safety Description | S28A - After contact with skin, wash immediately with plenty of water.
S37 - Wear suitable gloves.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
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p-Nitrosodimethylaniline - Introduction
Nitrosodimethylaniline, chemical formula C7H8N2O2. The following is a description of its nature, use, preparation and safety information:
Nature:
Nitrosodimethylaniline is an organic compound that is a pale yellow crystalline solid. It has a strong reduction and oxidation. The compound is stable at room temperature, but decomposes under high temperature, sunlight or light.
Use:
Nitrosodimethylaniline is mainly used as a dye and an intermediate in organic synthesis. It can be used to prepare nitrogen acetamide dyes of different colors, commonly used in textile, leather and printing and dyeing industries. In addition, it can also be used in certain organic synthesis reactions, such as as a protecting group for aromatic amines.
Method:
The preparation of nitrosodimethylaniline is generally obtained by the reaction of p-dimethylaniline and nitrous acid. First, nitrous acid and an acidic medium (such as hydrochloric acid) are reacted at a low temperature to form a nitrite, and then the nitrite is reacted with dimethylaniline to obtain nitrosodimethylaniline. This reaction is usually carried out under ice-bath conditions to control the reaction temperature.
Safety Information:
Nitrosodimethylaniline has high toxicity and is a harmful substance. During use and storage, strict safety handling and personal protective measures must be observed to avoid contact with skin, eyes and respiratory tract. Similarly, it should be kept away from fire and high temperature to avoid its decomposition and explosion. If the substance is accidentally touched or inhaled, seek immediate medical assistance and provide the appropriate safety data on the chemical container.
Last Update:2024-04-10 22:29:15