Chloride Half-Cell Ion Selective Electrode (ISE)


The HI4007 is a solid state, half-cell ion selective electrode (ISE) for the determination of chloride (Cl-) in solution. The silver chloride sensing pellet produces a potential change due to the chloride ion exchange between the inorganic pellet membrane and the sample. The internal sensing elements are housed within an epoxy body. The HI4007 is ideal for a variety of applications in food and beverages, agriculture, and water treatment.

•  Detection from 1.8 to 35,500 mg/L Cl-
•  For use with HI5315 reference half-cell
•  Solid state sensor

The HI4007 chloride ion selective electrode is a potentiometric half-cell sensor housed within an epoxy body. The internal elements are isolated from the sample by a compressed silver chloride sensing membrane. This solid state sensor requires a separate reference electrode to complete the measurement system.

Hanna’s solid state half-cell ISEs are designed for use with the HI5315 reference half-cell. The reference half-cell features a cone style junction. The skirted cone geometry of the reference forms the liquid junction with the test solution at the tip of the junction cone, producing a highly stable reference potential and consistent flow rates of electrolyte into the solution. A simple press of the top portion of the ISE makes it easy to empty the electrolyte fill solution and replace when necessary

For the HI4007 to measure chloride accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the halide ionic strength adjuster (ISA) solution. The halide ISA ensures that the activity coefficient is constant so the concentration of free chloride ions can be measured. Measuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI4007 chloride solid state ISE can measure from 50µM (1.8 mg/L) to 1M (35,500 mg/L).

    Conversion Table for Cl

    moles/L (M) to ppm (mg/L) :  3.500 x 104
    ppm (mg/L) to M (moles/L) :  2.857 x 10-5

Features at-a-glance
BNC Connection
•  The HI4007 has a universal BNC connector for easy connection to any benchtop meter with a female BNC probe input.

  Durable Epoxy Body
•  The probe body of the cyanide half-cell ISE is composed of durable epoxy resin.

  Fixed Sensing Modules
•  Solid state half-cell ISEs are electrodes that detect free ions in a solution.
•  The highly insoluble, compressed sensing pellet is attached to the HI4007 chloride half-cell by a fixed sensing module for ease of use.


    Type                          :  solid state; half-cell
    Measurement Range  :  Chloride (Cl) 1.0M to 5•10-5M, 35,500 to 1.8 mg/L (ppm)
    Optimum pH Range   :  pH 2 to 11
    Temperature Range   :  0 to 80 °C
    Approximate Slope    :  -56 mV
    Diameter                    :  12 mm
    Overall Length           :  120 mm
    Body Material            :  epoxy
    Cable                         :  coaxial; 1 m (3.3’)
    Connection                :  BNC
    Warranty                    :  6 months

Order now

To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

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