Hanna Instruments HI-7072 Electrolyte Solution for Double Junction Electrodes, 1M KNO3 4 x 30mL Bottles
Performing a simple maintenance check on the electrode before each use can bring peace of mind on reliability.
HI-7072 Electrolyte Fill Solution, 1M KNO3 (30 ml x 4)
HI-7072 is a 1M Potassium Nitrate (KNO3) electrode fill solution available in a 4 x 30ml bottles, specifically for use in double junction and ion selective electrodes. The solution is Chloride free. It is mainly used as a fill solution for Bromide, Cadmium, Chloride, Cupric, Cyanide, Iodide, Lead/Sulphate, and Silver/Sulphide electrodes.
Top-up your double junction electrode as required.
Checking the electrolyte will encourage maximum performance of the electrode by guaranteeing adequate head pressure to keep the liquid junction flowing.
If the level is low, select the proper electrolyte solution compatible with the electrode and top up as required. Some electrolyte solutions are available in US Food and Drug Administration (FDA) compliant bottles. (Scroll down for more information).
- Silver free to eliminate silver precipitation.
See the Hanna range (various sizes available):
- HI-7071 Electrolyte Solution 3.5M KCl + AgCl
- HI-7072 Electrolyte Solution 1M KNO3
- HI-7075 Electrolyte Solution 1.7M KNO3 0.7M KCl
- HI-7076 Electrolyte Solution 1.0M NaCl
- HI-7078 Electrolyte Solution 0.5 (NH4 )2 SO4
- HI-7082 Electrolyte Solution 3.5M KCl
HI-8071 Electrolyte solution, 3.5M KCI +AgCl, HI-8082 Electrolyte Solution 3.5M KCI, and HI-8093 Electrolyte Solution 1M KCI + AgCl are available in 30ml x4 bottles, US Food and Drugs Administration (FDA) approved.
Useful information:
Hanna electrolyte fill solutions are made using high quality reagent-grade chemicals and are manufactured to the highest standards for precision and acc
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.