General Lab Catalogue - Crison Instruments - #39

Their main feature is their sleeve diaphragm. This diaphragm is very easy to clean and thus very appropriate for measuring in samples which tend to clog classic ceramic diaphragms.

It is also very useful for measuring in solutions with low

levels of conductivity, e.g. distilled water.

Its great limitation are temperatures of over 60 °C.

Electrolyte consumption

The main advantage ofthe sleeve diaphragm isthe high reference electrolyte flow It consumes approximately 1 ml/24 h, as a result of which it needs refilling frequently. It also causes a certain contamination of samples such as distilled water, etc. Replacing the Crisolyt with Crisolyt V, which is more viscous, reduces consumption to 0.3 ml / 24 h.

52 21, for difficult samples,... up to pH 12.

For difficult solutions.Moreover,thesleevediaphragm, the electrode has a large-surface membrane, which provides rapid readings. It is a long life electrode. It is the best-selling electrode of this range and thus the most economical.

Appropriate for samples as different as distilled water,

wine, paint, emulsions, creams, etc.

High temperatures.

52 22, for difficult samples,... up to pH 14.

This electrode is similar to the 52 21, but with a specific

membrane for high alkaline media.

Adequate where pH values of over 12 will be measured

frequently.

52 23 for the food industry.

This electrode is similar to the 52 22 with a different reference electrolyte.

Uses CRISOLYT G, a glycerine-based electrolyte, providing special characteristics for taking measurements in viscous samples with a high protein content.

52 24 for titrations in non-aqueous media.

Uses LiCI 1M in ethanol as an electrolyte.

This electrode is basically used to perform titrations in

non-aqueous media.

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