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2-Methyl-4-nitroaniline(CAS#99-52-5)

Chemical Property:

Molecular Formula C7H8N2O2
Molar Mass 152.15
Density 1.1586
Melting Point 130-132°C(lit.)
Boling Point 294.61°C (rough estimate)
Flash Point 157.2℃
Solubility Dichloromethane, DMSO, Ethyl Acetate, Methanol
Vapor Presure 20.4hPa at 133.5℃
Appearance Crystalline Powder or Fine Needles
Color Yellow to khaki or brownish
BRN 775772
pKa 0.92±0.10(Predicted)
PH 7 (H2O)(aqueous suspension)
Storage Condition Store below +30°C.
Refractive Index 1.6276 (estimate)
Physical and Chemical Properties Characteristic yellow crystals.
melting point 134~135 ℃
relative density 1.1586
flash point 157.2 ℃
soluble in ethanol, benzene and acetic acid.
Use Mainly used for cotton, hemp fiber fabric dyeing and printing color, also used for the production of coatings

Product Detail

Product Tags

Risk Codes R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed.
R33 – Danger of cumulative effects
R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description S28 – After contact with skin, wash immediately with plenty of soap-suds.
S36/37 – Wear suitable protective clothing and gloves.
S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61 – Avoid release to the environment. Refer to special instructions / safety data sheets.
S28A -
UN IDs UN 2660 6.1/PG 3
WGK Germany 2
RTECS XU8210000
TSCA Yes
HS Code 29214300
Hazard Note Irritant
Hazard Class 6.1
Packing Group III

 

Introduction

2-Methyl-4-nitroaniline is an organic compound. It is a yellow to orange crystalline solid with good stability. The following is an introduction to the properties, uses, preparation methods and safety information of 2-methyl-4-nitroaniline:

 

Quality:

- Appearance: Yellow to orange crystalline solid

- Soluble: Soluble in some organic solvents such as ethanol, chloroform and dimethyl sulfoxide.

 

Use:

- Chemical industry: 2-methyl-4-nitroaniline can be used as an intermediate in organic synthesis for the synthesis of compounds such as dyes, pesticides and explosives.

 

Method:

There are several ways to prepare 2-methyl-4-nitroaniline:

- Direct nitrification: 2-methyl-4-aminoaniline is reacted with concentrated nitric acid to produce 2-methyl-4-nitroaniline.

- Oxidation-nitrification: 2-methyl-4-bromoaniline is reacted with excess aniline peroxide and then with concentrated nitric acid to produce 2-methyl-4-nitroaniline.

 

Safety Information:

- 2-Methyl-4-nitroaniline is an explosive that may cause an explosion when exposed to ignition or high temperatures.

- When handling 2-methyl-4-nitroaniline, wear personal protective equipment such as protective gloves, glasses, and gowns, and ensure that it is operated in a well-ventilated area.

- Avoid contact with skin, eyes, and respiratory tract.

- Avoid contact with combustibles, oxidants, acids and other substances during storage and transportation.

 


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