1-Naphthylamine
Synonyms
1-Naphthalenamine;
alpha-Naphthylamine;
Category
Non-ionic surfactant
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Chemical Numbering System
CAS: 134-32-7
EINECS: 205-138-7
Molecular Formula & Molecular Weight
Molecular Formula: C10H9N
Molecular Weight: 143.19
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Physical - chemical properties
|
Water solubility, g/L |
1.7 (20°C)[1] |
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
96mg/kg[2] |
|
rabbit subcutaneous LDLo |
300mg/kg[2] |
Overall carcinogenic evaluation: Group 3 (IARC).
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent emulsifying, dispersing, antistatic abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB/T 25781 1-Naphthyamine
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as dispersing agent, emulsion stabilizer.
Use as intermediate in organic synthesis.
Use as antistatic agent.
Manufacturers
References
[1]: HSDB. 134-32-7, 1-Naphthylamine
[2]: ChemIDplus. 134-32-7, 1-Naphthylamine
Update: 20200822(1);