Description
Buffer solution pH 9.21 is a ready-to-use alkaline pH buffer supplied as a multipack of six 250 ml bottles for laboratory calibration and measurement tasks. With a defined pH value of 9,21, it serves as a reliable reference point for checking and adjusting pH meters and electrodes in the alkaline range. The 6 x 250 ml configuration provides convenient working stock for laboratories that calibrate several instruments or renew buffer solutions frequently during daily operation. Net weight and gross weight are each 1,05 kg per package. Originating from Switzerland and offered by manufacturer Mettler-Toledo OnLine, the product forms part of the established pH buffer solution range used in chemical, pharmaceutical, food, and environmental laboratories. Individual 250 ml bottles suit open-bench calibration stations, while the six-bottle pack supports uninterrupted measurement workflows and reduces the need for frequent single-unit reorders. Buffer solution pH 9.21 in this multipack format is intended for professional laboratory applications that require a stable alkaline reference for electrode verification and routine pH control.
Key features
- Pack size: 6 x 250 ml
- pH value: 9,21
- Country of origin: Switzerland
- Product category: pH buffer solutions
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Questions about Certified buffer pH 9.21, 6 x 250mL
What is this article?
Certified buffer pH 9.21, 6 x 250mL is the article on this page. Luminix Health distributes Mettler-Toledo OnLine for laboratory use. It sits in pH buffers & conductivity standards, inside Buffers & pH solutions, in Lab chemicals.
A pH buffer for calibration has a stated pH at a stated temperature, often traceable. A conductivity standard has a stated conductivity. They are not general reagents and they should not be poured back into the bottle. The temperature of the measurement has to be the temperature on the label, or the meter has to compensate.
A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.
Which category should I open next?
The category is Buffers & pH solutions. The sub-category is pH buffers & conductivity standards. The catalogue is Lab chemicals.
Shelves beside this one are Biological buffers (Tris, HEPES, MOPS) and Buffers (other).
What should I check before I order?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.