Labbox Yellow pH Buffer solution, pH 7,00 ± 0,01 (20 ºC)
The 250mL Labkem pH 7.00 buffer solution is a yellow coloured pH buffer solution for the calibration and verification of pH meters at the neutral point, pH 7.00 ± 0.01 at 20 °C. The bright yellow colour provides a clear visual distinction from acidic and alkaline buffers, helping to minimise handling errors.
This neutral pH buffer is typically used as the central reference in two or three point calibrations and is suitable for a wide range of analytical methods. The solution is supplied ready to use, making it convenient for daily calibration in teaching labs, QC laboratories and research facilities. A table showing the variation of pH with temperature is printed on the label, enabling straightforward correction when working away from 20 °C. A certificate of analysis is available free of charge, with values traceable to NIST SRM buffer standards, supporting documented calibration procedures. Under appropriate storage, the buffer should usually be used within 12–15 months of opening.
Practical Applications
– Central reference point for two and three point pH meter calibration
– Routine verification of electrode performance before sample series
– Teaching practicals covering neutral solutions and pH measurement
– QC checks in water analysis, environmental monitoring and general chemistry
– Use as a control solution alongside pH 4 and pH 10 buffers
Key Features
– Yellow pH 7.00 ± 0.01 buffer solution at 20 °C
– 250mL bottle for everyday laboratory use
– Distinct colour coding to differentiate neutral buffer from acidic and alkaline buffers
– Printed temperature compensation table for quick reference
– Ready-to-use solution with no weighing or dilution needed
Quality & Standards
– Certificates of analysis available, traceable to NIST SRM standards
– Colour coding and clear labelling support good calibration practice
– Suitable for education, research and routine analytical laboratories
– Recommended use within 12–15 months of opening when stored correctly
Specifications
– Product type: pH buffer solution
– Nominal pH: 7.00 ± 0.01 at 20 °C
– Colour: Yellow
– Volume: 250mL
– Label information: pH/temperature variation table, batch and expiry details
– Brand: Labbox Labkem
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