عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In recent study, physical properties of binary solution of soft water-sodium chloride and hard water-sodium chloride are investigated. Among the physical properties, dencity, viscosity, refractive index and electrical conductivity of sodium chloride solutions (10-20% w/w) have been studied. The results showed that there is a direct linear relation in the range of 10%-20% w/w solution. Also the results showed that these differences are bigger in hard water.