1,2,3,4-tetrahydronaphthalene

1,2,3,4-tetrahydronaphthalene is an organic chemical compound with the molecular formula C10H12 and CAS number 119-64-2. It is a partially hydrogenated derivative of naphthalene, featuring a bicyclic structure where one benzene ring is fully saturated. With a molecular weight of 132.2 g/mol, this colorless to pale yellow liquid serves as an important intermediate in various chemical processes and industrial applications.

1,2,3,4-tetrahydronaphthalene is a colorless to pale yellow liquid at room temperature with a characteristic aromatic odor. The compound has a molecular weight of 132.2 g/mol and the formula C10H12. It is relatively insoluble in water but miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The substance exhibits typical properties of partially saturated aromatic hydrocarbons.

1,2,3,4-tetrahydronaphthalene is primarily used as a chemical intermediate in organic synthesis and as a solvent in various industrial processes. It serves as a precursor for the production of pharmaceuticals, agrochemicals, and specialty chemicals. The compound is also utilized in polymer chemistry, as a reaction medium for chemical transformations, and in the manufacture of fragrances and other fine chemicals due to its stable aromatic structure.

1,2,3,4-tetrahydronaphthalene requires careful handling as it can cause skin and eye irritation (Skin Irrit. 2; Eye Irrit. 2). Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation in work areas and avoid direct skin and eye contact. Handle in well-ventilated areas away from ignition sources, and follow good industrial hygiene practices to minimize exposure risks.

1,2,3,4-tetrahydronaphthalene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers upright and properly labeled according to GHS requirements with Warning signal word and appropriate pictograms (GHS07, GHS09). Store away from incompatible materials and ensure secondary containment to prevent environmental release, as the substance is classified as Aquatic Chronic 2.

In case of skin contact with 1,2,3,4-tetrahydronaphthalene, immediately remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with plenty of clean water for at least 15 minutes and remove contact lenses if present. If irritation persists, seek medical attention. In case of inhalation, move to fresh air immediately and consult a physician if symptoms develop.

1,2,3,4-tetrahydronaphthalene must be disposed of in accordance with local, national, and international regulations as hazardous waste. The substance cannot be disposed of in regular waste due to its environmental classification (Aquatic Chronic 2). Contact licensed waste disposal companies for proper treatment and disposal. Empty containers should also be handled as hazardous waste. Never discharge into drains, sewers, or the environment.

1,2,3,4-tetrahydronaphthalene is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation purposes. This classification requires appropriate packaging, labeling, and documentation according to dangerous goods regulations. Shipments must comply with ADR requirements including proper packaging specifications, hazard labels, and transport documentation. Only authorized carriers familiar with dangerous goods regulations should handle transportation of this substance.

1,2,3,4-tetrahydronaphthalene is subject to REACH regulation in Europe and must comply with CLP classification requirements. The substance is classified with hazard classes Skin Irrit. 2, Eye Irrit. 2, and Aquatic Chronic 2, requiring appropriate labeling with Warning signal word and GHS07/GHS09 pictograms. It is not currently listed as a Substance of Very High Concern (SVHC). Users must follow safety data sheet requirements and workplace exposure regulations.

1,2,3,4-tetrahydronaphthalene is available through OYSI, a specialized European distributor of chemical products. OYSI provides this substance to industrial customers across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures quality products meeting European standards and provides technical support for safe handling and application of 1,2,3,4-tetrahydronaphthalene in various industrial processes.