1,6-diisocyanatohexane

1,6-diisocyanatohexane is an aliphatic diisocyanate compound with the molecular formula C8H12N2O2 and CAS number 822-06-0. This chemical features two reactive isocyanate groups connected by a six-carbon chain, making it a valuable building block in polymer chemistry. With a molecular weight of 168.19 g/mol, it belongs to the family of diisocyanates used primarily in polyurethane production. The compound is classified as hazardous with multiple safety concerns including acute toxicity and sensitization properties.

1,6-diisocyanatohexane is typically a colorless to pale yellow liquid at room temperature with a characteristic pungent odor. The compound has a molecular weight of 168.19 g/mol and contains two highly reactive isocyanate functional groups. It is generally insoluble in water but soluble in organic solvents. The presence of isocyanate groups makes it moisture-sensitive, readily reacting with water to form urea linkages and carbon dioxide. Its aliphatic structure provides flexibility compared to aromatic diisocyanates.

1,6-diisocyanatohexane is primarily used as a curing agent and crosslinking component in polyurethane production. It serves as a key raw material for manufacturing flexible polyurethane foams, elastomers, coatings, and adhesives. The compound is particularly valuable in applications requiring good light stability and color retention due to its aliphatic structure. Industrial applications include automotive components, construction materials, and specialty chemical production where its bifunctional reactivity enables polymer chain extension and crosslinking reactions.

1,6-diisocyanatohexane must be handled with extreme caution due to its acute toxicity and sensitization potential. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection to prevent inhalation exposure. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin and eye contact completely, as the compound can cause irritation and sensitization. Training on isocyanate handling procedures is mandatory, and emergency shower/eyewash stations should be readily accessible in work areas.

1,6-diisocyanatohexane should be stored in tightly sealed containers in a cool, dry place away from moisture and heat sources. The storage area must be well-ventilated and protected from direct sunlight. Keep the compound away from water, alcohols, amines, and other nucleophilic substances that can react with isocyanate groups. Storage temperatures should remain stable to prevent degradation. Containers should be made of compatible materials and properly labeled according to GHS requirements with appropriate hazard pictogrammes including GHS06 and GHS08.

1,6-diisocyanatohexane exposure requires immediate first aid measures due to its acute toxicity and irritant properties. For skin contact, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15 minutes and seek medical attention. If inhaled, move the person to fresh air immediately and provide respiratory support if needed. For ingestion, do not induce vomiting and seek immediate medical care.

1,6-diisocyanatohexane must be disposed of as hazardous waste according to local and European waste regulations. The compound cannot be disposed of in regular waste streams due to its toxic and reactive properties. Disposal should be handled by licensed hazardous waste contractors who can properly treat or incinerate the material at high temperatures. Empty containers may still contain residues and require special handling. Consult local environmental authorities for specific disposal requirements and ensure compliance with waste classification codes for isocyanate-containing materials.

1,6-diisocyanatohexane is classified as dangerous goods under ADR regulations, falling under Class 6.1 (toxic substances) with Packing Group II. Transport requires appropriate UN-approved packaging and proper hazard labeling including toxic substance markings. Shipping documentation must include the correct UN number, proper shipping name, and hazard class information. Carriers must be trained in dangerous goods handling, and emergency response information should accompany shipments. Temperature control may be necessary to maintain product stability during transport.

1,6-diisocyanatohexane is subject to comprehensive European chemical regulations including REACH registration requirements and CLP classification as Acute Tox. 3, STOT SE 3, and various irritation/sensitization categories. The compound carries the 'Danger' signal word with GHS06 and GHS08 pictogrammes. While not currently listed as a SVHC (Substance of Very High Concern), it requires strict workplace exposure controls. Industrial users must implement risk management measures and may need to restrict access due to its respiratory and skin sensitization properties.

1,6-diisocyanatohexane is available through OYSI, a specialized European distributor of technical chemicals and industrial raw materials. OYSI provides this compound to qualified industrial customers across Europe, ensuring proper handling, documentation, and regulatory compliance. Due to the hazardous nature of this material, purchases typically require verification of proper facilities, trained personnel, and appropriate safety measures. Contact OYSI directly for availability, technical specifications, and regulatory support for your specific application requirements in polyurethane or specialty chemical manufacturing.