Hanna Instruments-7078 Electrolyte Solution 0.5M, 4 x 30 mL bottles
Hanna Instruments-7078 Electrolyte Solution 0.5 (NH4)2 SO4 (30 ml x 4)
Hanna Instruments-7078 is a fill solution containing 0.5M Ammonium Sulphate (NH4)2 SO4, and recommended for use with the Hanna Instruments-5315 reference electrode and HI4013 Nitrate half-cell .
Top-up your double junction electrode as required.
- Silver free to eliminate silver precipitation.
See the Hanna range (various sizes available):
- Hanna Instruments-7071 Electrolyte Solution 3.5M KCl + AgCl
- Hanna Instruments-7072 Electrolyte Solution 1M KNO3
- Hanna Instruments-7075 Electrolyte Solution 1.7M KNO3 0.7M KCl
- Hanna Instruments-7076 Electrolyte Solution 1.0M NaCl
- Hanna Instruments-7078 Electrolyte Solution 0.5 (NH )2 SO4
- Hanna Instruments-7082 Electrolyte Solution 3.5M KCl
- Hanna Instruments-8071 Electrolyte solution, 3.5M KCI +AgCl,
- Hanna Instruments-8082 Electrolyte Solution 3.5M KCI, and
Hanna Instruments-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 accuracy.
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.