$1,980.83
Prices include GST. Not all items are in stock. Call 03 9769 0666 to confirm.
The HI4012 is a solid state, half-cell ion selective electrode (ISE) for the determination of lead (Pb2+) in solution and indicator for sulfate in titrations. The lead sulfide sensing pellet produces a potential change due to the ion exchange between the inorganic pellet membrane and the sample. The internal sensing elements are housed within a durable epoxy body.
The HI4012 is ideal for a variety of applications in the plating industry and environmental monitoring.
The HI4012 lead/sulfate selective electrode is a potentiometric half-cell sensor housed within an epoxy body. The internal elements are isolated from the sample by a compressed lead sulfide 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 HI4012 to measure lead accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the lead ionic strength adjuster (ISA) solution. The ISA ensures that the activity coefficient is constant so the concentration of free lead ions can be measured. Measuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI4012 lead/sulfate solid state ISE can measure from 1µM (0.21 mg/L) to 0.1M (20, 700 mg/L).
The HI4012 can also be used as an indicator to follow the progress and detect the endpoint of a precipitation titration of sulfate. During the titration, the lead/sulfate ISE follows the lead concentration while a lead perchlorate solution is used to titrate the sample. The lead in the titrant solution reacts with the sulfate ions present in the sample to form a precipitate. Once all of the lead and sulfate ions have reacted, a change in mV occurs to signal the endpoint, and ultimately the sulfate concentration
Conversion Table for Pb2+
| Multiply | |
| moles/L (M) to ppm (mg/L) | 2.072 x 105 |
| ppm (mg/L) to M (moles/L) | 4.826 x 10-6 |
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 HI4012 lead/sulfate half-cell by a fixed sensing module for ease of use.
Durable Epoxy Body – The probe body of the lead/sulfate half-cell ISE is composed of durable epoxy resin.
BNC Connection – The HI4012 has a universal BNC connector for easy connection to any benchtop meter with a female BNC probe input.
A solid state sensor electrode develops a voltage due to the ion exchange that occurs between the solution and the inorganic membrane. An equilibrium occurs due to the highly limited solubility of the membrane material in the sample. When the ionic strength of the solution is fixed by the addition of ISA, the voltage is proportional to the concentration of free ions in solution.
| SKU | HI4012 |
| Name | Lead/Sulfate Half-Cell Ion-Selective Electrode (ISE) - HI4012 |
| Description | solid state; half-cell |
| Measurement Range | lead (Pb2+) 0.1M to 1 10-6M, 20,700 to 0.21 mg/L (ppm) |
| Temperature Range | 0 to 80 °C |
| Body Material | epoxy |
| Optimum pH Range | pH 4 to 7 |
| Body Length/Overall Length | 120 mm |
| Outer Diameter | 12 mm |
| Cable | coaxial; 1 m (3.3’) |
| Connector Type | BNC |
| Notes | Approximate Slope +27 mV |
All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.
Free standard delivery: We offer free delivery within Australia on orders over $150, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient's location. Free shipping is not available with other offers or discounts.
Same-day despatch: Place your order before 1 PM Monday to Friday for same-day despatch (leaves our warehouse). Delivery times may vary depending on the courier service and the recipient's location. Subject to stock availability.
Please note that we do not offer shipping to PO Box addresses.
| Weight | 0.01 kg |
|---|---|
| Parameter | Lead, Sulfate |
| Temperature Range | 0 to 80 °C |
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
