Phthalonitrile CAS 91-15-6

1. Phthalonitrile is primarily used as a precursor to manufacture phthalocyanine pigments, fluorescent brighteners, and photographic sensitizers .
2. The compound is a key monomer for synthesizing high-performance phthalonitrile resins, which are used in structural battery composites and flame-retardant materials capable of withstanding temperatures exceeding 200 °C .
3. Phthalonitrile CAS 91-15-6 derivatives serve as building blocks for preparing nanobioagents with antioxidant, antimicrobial, and DNA cleavage activities for biomedical research .

1. Store Phthalonitrile in a tightly sealed container in a cool, dry, well-ventilated place below 15°C, away from incompatible materials like strong acids, bases, and oxidizing agents .
2. Keep Phthalonitrile CAS 91-15-6 containers closed when not in use and protected from dust formation, as the substance is toxic and can cause harm through inhalation, skin contact, or ingestion .
3. Handle Phthalonitrile using appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and in a fume hood to avoid breathing dust .

1. Isolate the spill area, wear full protective equipment including self-contained breathing apparatus, and avoid dust generation when handling solid Phthalonitrile .
2. Sweep up spilled Phthalonitrile CAS 91-15-6 into sealed, labeled containers for disposal without creating dust; do NOT let the chemical enter drains or waterways .
3. Personnel cleaning Phthalonitrile spills must dispose of waste according to hazardous material regulations, as Phthalonitrile is classified for transport as a toxic solid (UN 3439, Hazard Class 6.1, Packing Group II/III) .

1. Phthalonitrile is fatal if swallowed (H300, oral LD50 rat: 125 mg/kg), toxic in contact with skin (H311), and may cause damage to organs (H370, H372) with GHS signal word "Danger" .
2. Phthalonitrile CAS 91-15-6 is harmful to aquatic life with long-lasting effects (H412) and requires avoidance of environmental release; thermal decomposition produces toxic fumes including nitrogen oxides and cyanide fumes .
3. Phthalonitrile has a melting point of 138-143°C, is slightly soluble in water (0.56 g/L), and is incompatible with strong oxidizing agents, reducing agents, acids, and bases .