Iron(II) sulfide or ferrous sulfide (Br.E. sulphide) is a chemical compound with the formula FeS. In the oil/gas industry, iron sulfides are often present in a sour system due to reaction between corrosion products and hydrogen sulfide.
A material that conducts (see conduction) electricity poorly or not at all. If a voltage is applied to a dielectric, the atoms in the material arrange themselves in such a way as to oppose the flow of electric current. Glass, wood, and plastic are common dielectrics. (See insulator.)
The dielectric constant can be expressed as. Îµ = Îµ s / Îµ 0 (1) where . Îµ = the dielectric constant. Îµ s = the static permittivity of the material. Îµ 0 = vacuum permittivity. The Dielectric Constant of common fluids are indicated in the table below. The Dielectric Constant is in general influenced by