pH-Buffer Solution

Since pH affects to many chemical and biological processes, pH control is regularly done in all laboratories. Buffer solutions are used to calibrate pH-meters and must be of consistent quality and accuracy.
Scharlau manufactures a broad range of pH buffers from pH 1 to 13, following DIN 19266. All of them are traceable to NIST as it is showed in the certificate of analysis that is delivered together with every bottle.
We stick an additional label in the bottles of buffers pH 4, 7 and 10, showing the temperature dependence of these solutions.

We offer three different presentations of pH-buffer solutions:

READY-TO-USE PH-BUFFER SOLUTIONS

Description	Cat. No.
Buffer solution pH 1 Buffer solution pH 2 Buffer solution pH 3  Buffer solution pH 4  Buffer solution pH 4,01 Buffer solution pH 6 Buffer solution pH 7 Buffer solution pH 7,02 Buffer solution pH 8 Buffer solution pH 9 Buffer solution pH 10 Buffer solution pH 11 Buffer solution pH 12 Buffer solution pH 13	SO1101 SO1022 SO1023 SO1004 SO1005 SO1006 SO1007 SO1008 SO1018 SO1009 SO1010 SO1141 SO1142 SO1143

Traceable to NIST.

COLOURED READY-TO-USE PH-BUFFER SOLUTIONS

For easy identification, we provide pH 4, 7 and 10 coloured solutions. They help to avoid mistakes in the laboratory.

DESCRIPTION     Buffer solution pH 4 (red)     Buffer solution pH 7 (yellow)     Buffer solution pH 10 (blue)

CAT. NO. SO2004 SO2007 SO2010

CONCENTRATED PH-BUFFER SOLUTIONS

DESCRIPTION     Concentrated buffer solution pH 4 Concentrated buffer solution pH 7 Concentrated buffer solution pH 9 Concentrated buffer solution pH 10

CAT. NO. SO1040 SO1070 SO1090 SO1100

To prepare 1 l of ready to use solution.