m-Xylene-4,5-diamine
4,5-dimethyl-1,2-phenylenediamine
CAS: 3171-45-7;3171-46-8
Molecular Formula: C8H12N2
m-Xylene-4,5-diamine - Names and Identifiers
m-Xylene-4,5-diamine - Physico-chemical Properties
| Molecular Formula | C8H12N2 |
| Molar Mass | 136.19 |
| Density | 1.076±0.06 g/cm3(Predicted) |
| Melting Point | 73-78℃ |
| Boling Point | 272.1±35.0 °C(Predicted) |
| Flash Point | 144.9°C |
| Vapor Presure | 0.00399mmHg at 25°C |
| pKa | 4.45±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.618 |
| MDL | MFCD00007729 |
m-Xylene-4,5-diamine - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| Hazard Class | IRRITANT |
m-Xylene-4,5-diamine - Introduction
4,5-dimethyl-1,2-phenylenediamine(4,5-dimethyl-1,2-phenylenediamine) is an organic compound with the chemical formula C8H12N2. The following is a detailed description of its nature, use, preparation and safety information:
Nature:
-Appearance: 4,5-dimethyl-1,2-phenylenediamine is a colorless or slightly yellow crystalline or powdery substance.
-Solubility: It has low solubility in water, and has good solubility in organic solvents (such as methanol, ethanol, ether, etc.).
-Melting point: The melting point of 4,5-dimethyl-1,2-phenylenediamine is about 79-81 degrees Celsius.
-Stability: It is relatively stable at room temperature, but may decompose or produce toxic gases under high temperature, strong oxidants or acidic conditions.
Use:
-Chemical reagent: 4,5-dimethyl-1,2-phenylenediamine is mainly used as an intermediate for dyes, pigments and hair dyes.
-Dyes: It can react with oxidants to generate colored compounds, so it can be used in the production of dyes, especially in dyed fibers, leather and plastics.
-Pigments: Due to its organic structural stability and good color expression, 4,5-dimethyl-1,2-phenylenediamine can be used in the painting, ink and pigment manufacturing industries.
-Hair dye: Its chemical properties make it suitable for use as one of the hair dye ingredients.
Method:
4,5-dimethyl-1,2-phenylenediamine can be prepared by methylating p-toluidine (toluidine). A general method of preparation involves the reaction of methylmagnesium bromide (MeMgBr) with toluidine in the presence of a suitable catalyst to give 4,5-dimethy1-l, 2-phenylenediamine.
Safety Information:
- 4,5-dimethyl-1,2-phenylenediamine in contact with the skin, eyes or inhalation may cause irritation and damage to the human body, direct contact should be avoided. Wear appropriate personal protective equipment such as gloves, masks and goggles during use.
-It is a combustible substance and should be kept away from open flames and flames.
-During storage and handling, appropriate ventilation measures should be taken to prevent the accumulation of vapor and dust.
-Please store and dispose of chemicals properly to avoid environmental pollution. For further safety information, please refer to the relevant chemical safety data form (MSDS) or consult a relevant professional.
Nature:
-Appearance: 4,5-dimethyl-1,2-phenylenediamine is a colorless or slightly yellow crystalline or powdery substance.
-Solubility: It has low solubility in water, and has good solubility in organic solvents (such as methanol, ethanol, ether, etc.).
-Melting point: The melting point of 4,5-dimethyl-1,2-phenylenediamine is about 79-81 degrees Celsius.
-Stability: It is relatively stable at room temperature, but may decompose or produce toxic gases under high temperature, strong oxidants or acidic conditions.
Use:
-Chemical reagent: 4,5-dimethyl-1,2-phenylenediamine is mainly used as an intermediate for dyes, pigments and hair dyes.
-Dyes: It can react with oxidants to generate colored compounds, so it can be used in the production of dyes, especially in dyed fibers, leather and plastics.
-Pigments: Due to its organic structural stability and good color expression, 4,5-dimethyl-1,2-phenylenediamine can be used in the painting, ink and pigment manufacturing industries.
-Hair dye: Its chemical properties make it suitable for use as one of the hair dye ingredients.
Method:
4,5-dimethyl-1,2-phenylenediamine can be prepared by methylating p-toluidine (toluidine). A general method of preparation involves the reaction of methylmagnesium bromide (MeMgBr) with toluidine in the presence of a suitable catalyst to give 4,5-dimethy1-l, 2-phenylenediamine.
Safety Information:
- 4,5-dimethyl-1,2-phenylenediamine in contact with the skin, eyes or inhalation may cause irritation and damage to the human body, direct contact should be avoided. Wear appropriate personal protective equipment such as gloves, masks and goggles during use.
-It is a combustible substance and should be kept away from open flames and flames.
-During storage and handling, appropriate ventilation measures should be taken to prevent the accumulation of vapor and dust.
-Please store and dispose of chemicals properly to avoid environmental pollution. For further safety information, please refer to the relevant chemical safety data form (MSDS) or consult a relevant professional.
Last Update：2024-04-10 22:29:15
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