Analysis of Naphthalene

Naphthalenes marketed in the USA contain high concentrations of naphthalene or para-dichlorobenzene. Both active ingredients are solid chemicals that slowly turn into smoke at room temperature. The fumes kill clothes moths when trapped inside closed containers.

Naphthalenes gradually disappear as they turn into gas and mix with the surrounding air. The time it takes for a naphthalene to evaporate depends on several factors, such as how many naphthalene is present, the amount of airflow around the naphthalene, and temperature.

Naphthalene fumes can adhere to fabrics or clothing after storage and items may need to be aired and washed to remove odor. Its ingredients can contaminate crops or soil, harm wildlife, pollute water supplies and contribute to air pollution. For this reason, naphthalenes should not be used outdoors.

Naphthalene is an aromatic hydrocarbon derived from coal tar or crude oil. It is an insecticide that is also used as a repellent. Naphthalene and other polycyclic aromatic hydrocarbons (PAHs) are released from incomplete combustion processes from industry, from local sources such as cigarette smoke and motor vehicle exhaust, as well as from natural events such as forest fires.

Naphthalene was first registered as a pesticide by the US Department of Agriculture. In 1981, the EPA 738-R-07-010 standard for para-dichlorobenzene was published by the US Environmental Protection Agency (EPA). The following physical and chemical properties of paraffin are determined in detail in the tests carried out in advanced laboratories today:

• Naphthalene is a white crystalline or colorless to brown solid
• Naphthalene has a distinctive aromatic odor
• Vapor pressure: 0.087 mmHg
• Octanol-Water partition coefficient: 3.29
• Henry's constant: 4,6 x 10-4 atm m3/mol
• Molecular weight: 128,18 g/mol
• Solubility (water): 3 mg/100 mL at room temperature
• Soil sorption coefficient: 200-1470 worldwide in various soil types

In the chemical content analyses performed, Fourier transform infrared spectroscopy (FITR) and gas chromatography-mass spectrometry (GC-MS) methods are applied, and hydrocarbon analyses are carried out. In addition, the viscosity, flow rate on metal surfaces, volatility, specific gravity, purity, and behavior at different temperatures of naphthalenes are tested.

Our organization also provides naphthalene analysis services with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.