Naphthalen-1-amine

Naphthalen-1-amine is an aromatic amine compound with the molecular formula C10H9N and CAS number 134-32-7. This organic chemical consists of a naphthalene ring system with an amino group (-NH2) attached at position 1. With a molecular weight of 143.18 g/mol, it belongs to the class of primary aromatic amines and exhibits moderate toxicity requiring careful handling and safety precautions.

Naphthalen-1-amine appears as white to reddish crystalline solid at room temperature, though it may darken upon exposure to light and air. The compound has a characteristic amine odor and exhibits limited water solubility but dissolves readily in organic solvents such as ethanol, ether, and benzene. Its aromatic structure provides stability while the amino group contributes to its chemical reactivity and hydrogen bonding capabilities.

Naphthalen-1-amine serves primarily as an intermediate in the synthesis of dyes, particularly azo dyes and other colored compounds used in textile and printing industries. It is also utilized in the production of antioxidants, rubber chemicals, and pharmaceutical intermediates. The compound finds application in analytical chemistry as a reagent and in the manufacture of specialty chemicals requiring aromatic amine functionality.

Naphthalen-1-amine requires careful handling due to its Acute Tox. 4 classification and Warning signal word. Essential personal protective equipment includes nitrile gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation. Avoid eating, drinking, or smoking when handling this material, and wash hands thoroughly after use.

Naphthalen-1-amine should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight to prevent discoloration and degradation. Keep away from oxidizing agents, acids, and incompatible materials. Storage areas should be equipped with appropriate spill containment measures and maintained at stable temperatures. Ensure containers are properly labeled and stored according to local chemical storage regulations.

Immediate action is required upon contact with naphthalen-1-amine. For skin contact, remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, rinse immediately with plenty of clean water for 15 minutes while holding eyelids open. If inhaled, move to fresh air immediately. Seek medical attention if symptoms develop or persist after exposure.

Naphthalen-1-amine waste must be disposed of through licensed hazardous waste disposal facilities in accordance with local, national, and EU waste regulations. The material cannot be disposed of in regular waste streams due to its toxicity and environmental impact classification (Aquatic Chronic 2). Small quantities should be collected in appropriate containers and arranged for professional disposal through certified waste management companies specializing in chemical waste.

Naphthalen-1-amine is classified under ADR Class 6.1 (Toxic substances), Packing Group III for transportation purposes. This classification requires specific packaging, marking, and documentation according to dangerous goods regulations. Transport must comply with ADR requirements including proper packaging specifications, hazard labels (GHS07, GHS09), and shipping papers. Only trained personnel should handle transportation of this regulated chemical substance.

Naphthalen-1-amine is subject to REACH regulation requiring registration for manufacture or import above one tonne per year in the EU. The substance must comply with CLP regulation for classification, labeling, and packaging as indicated by its GHS pictograms (GHS07, GHS09) and Warning signal word. While not currently listed as SVHC, users must follow standard chemical safety protocols and maintain safety data sheets for workplace compliance.

Naphthalen-1-amine is available through OYSI, a leading European distributor of specialty chemicals serving industrial and research customers across the continent. OYSI provides quality chemical products with proper documentation, safety data sheets, and regulatory compliance support. As an established supplier, OYSI ensures reliable availability and professional service for customers requiring this aromatic amine compound for their applications.