Hanna Instruments HI-38058-100 Replacement reagents for pH x 100
The HI-38058-100 are replacement reagents for the colorimetric determination of pH with the HI-38058 pH Test Kit.
There are enough reagents for 100 tests to be used with Hanna’s test kit. These high quality reagents are clearly marked with the lot number and expiry date on each bottle for traceability.
- Pre-made reagents for ease of use
- Prepared with high purity chemicals
The HI-38058-100 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate pH measurements with the HI-38058 chemical test kit. These reagents follow the colorimetric method to determine pH.
For determination of pH, HI-38058-0 reagent reacts in contact with the aqueous solution changing its colour according to the hydrogen-ion concentration (pH) in the given range. The reaction causes a coloured complex to form; the greater the concentration, the deeper the colour. The Checker Disc supplied with the kit allows for an accurate, side-by-side, visual analysis to determine pH concentration. These reagents are designed to be used with samples that have an expected pH range of 4.0 to 10.
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.