沱江水的物理化学特性

本文论述了枯水期沱江流域、内江市市区花萼村至大自然河段水体的物理化学特性，主要测定其DH值、电导率、密度、表面张力、硬度、溶解氧、相对介电常数和相对黏度等物理化学特性参数。实验结果表明：内江市市区段沱江水的pH值为8．24；总硬度为13．04°；电导率为0．499ms／cm；溶解氧含量为4．56mg／L；表面张力为70．86×10^-3N／m；相对介电常数为73．066；密度为1．016g／cm^3；相对黏度为1．008。

Tuojiang Water on the Physical and Chemical Properties

This article discussed Tuojiang water on the physical and chemical pr-operties from HuaE viUige to DaZiran during low water term of Tuojiang catchment.Some physical and chemical properties including pH,conductivity,interfacial tension,hard-ness,dissolved oxygen, relative dielectric constant and relative viscosity have been deter-mined.The experimental result showed：the pH of 8.24,the hardness of 13.04° ,the conduc-tivity of 0.499 ,the dissolved oxygen of 4.56 ,the interfacial tension of 70.86×10^-3 ,the relative dielectric constant of 73.066,the density of 1.016 ,the relat-ive viscosity of 1.008.