Rikkihiiltä

Rikkihiiltä is the Finnish word for carbon disulfide. It is a colorless, volatile liquid with the chemical formula CS2. Carbon disulfide is a highly flammable and toxic compound. It has a distinctive odor, often described as ether-like when pure, but it can become unpleasant and pungent due to impurities.

Historically, carbon disulfide was used in the production of viscose rayon and cellophane. It served as a solvent and a reagent in various chemical processes. However, due to its hazardous properties, its use has been significantly reduced in many industrial applications, with safer alternatives often being sought.

In laboratory settings, it can still be used as a solvent for nonpolar substances like sulfur, phosphorus, and iodine. Its high dielectric constant also makes it useful in certain electrical applications.

Carbon disulfide is synthesized industrially by reacting methane or natural gas with sulfur at high temperatures. The process is energy-intensive.

Exposure to carbon disulfide can cause various health problems. Inhalation of its vapors can lead to neurological effects, including dizziness, headaches, and in severe cases, psychosis and coma. Skin contact can cause irritation and dermatitis. Long-term exposure has been linked to cardiovascular problems and damage to the nervous system. Due to its toxicity, strict safety precautions are necessary when handling carbon disulfide, including adequate ventilation and personal protective equipment. Its environmental impact is also a concern, as it can contribute to air pollution.