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Organic compound diphenylamine CAS: 122-39-4
Physical and chemical properties
Diphenylamine is an organic compound and is a white crystalline powder.
Quality index
| Test items | Quality Standards | Test results |
| Appearance | White to light brown flaky crystals or colorless to light brown transparent liquid | White flake crystals |
| Content % | ≥99.80 | 99. 95 |
| Low boiling point substances % | ≤0.20 | 0.005 |
| High boiling point substances % | ≤0.10 | 0.04 |
| Aniline % | ≤0.05 | 0.005 |
| Moisture % | ≤0.20 | 0.008 |
| Crystallization point | ≥52.50 | 53.7 |
| Water extract reaction | Neutral | Neutral |
| Ethanol insoluble matter | ≤0.05 | 0.02 |
Function and use
1. Manufacture of lubricating oil antioxidants, plastic antioxidants, rubber antioxidants and gunpowder stabilizers. Diphenylamine is widely used in these fields as an intermediate to help improve the stability and durability of materials.
2. Manufacture of intermediates for dyes and pesticides. Diphenylamine has important applications in the dye industry, such as for the preparation of azo dyes and other dyes, and for the production of rubber accelerators, antioxidants, plastic stabilizers and veterinary drugs such as diphenylamine sulfide.
3. Used as a free radical inhibitor and retarder. In organic synthesis, diphenylamine can prevent or slow down polymerization reactions initiated by free radicals, thereby controlling the progress of chemical reactions.
4. Used to identify DNA and nitrates. Diphenylamine is also used in biochemistry and chemical analysis, such as for colorimetric determination of nitrates, nitrites, chlorates and magnesium.
5. Other uses:Diphenylamine can also be used as a safety agent for nitrocellulose and smokeless explosives, as well as a liquid desiccant.
Packaging, warehousing and transportation
1. Packaging materials: Diphenylamine should be packaged in a sealed and complete package, ensuring that the barrel lid is sealed, the barrel ring is firm, and the barrel body joints are tight and without gaps.
2. Storage conditions:
Temperature: Store in a cool, ventilated warehouse, away from fire, heat sources, and avoid light.
Environment: The package must be sealed and should be stored separately from oxidants and acids.
Handling: Load and unload gently during transportation to prevent damage to the package and container.
3. Transportation requirements:
Hazard category: Diphenylamine is a dangerous good and must be transported as a dangerous good.
Transportation conditions: Avoid high temperature, open flames and static electricity, ensure that the container is well sealed to prevent leakage.
Emergency measures: Equip with appropriate fire extinguishing equipment, such as carbon dioxide, foam, dry powder, etc. Avoid direct spraying with water to prevent boiling and splashing.
In case of fire, put out with water, sand and fire extinguisher!
