General Lab Catalogue - Crison Instruments - #49

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Text version of the page
Combined metallic electrodes for standard application
50
These electrodes are similar to combined pH electrodes, in which the glass membrane has been replaced by a silver, platinum or gold ring or wire.
50 55, platinum, for PH 25 portable.
The indicator element is platinum wire. Like all
electrodes in this new range, it is low-maintenance,
has a ceramic diaphragm, a plastic body, an ergonomic
handle and an MP-5 connector.
Applications: General measurement of redox potential.
Limitations
Solutions with colloids or solids in suspension. Samples containing sulphides, reducing sugars or other solutions which react with silver ions.
52 60, silver.
The indicator element is a silver ring. It uses a special electrolyte: KN03 1 M, which prevents clogging ofthe diaphragm caused by AgCI precipitation. Applications: Argentometric titrations.
52 61, platinum.
The indicator element is a platinum ring.
Applications: Potential measurementsand redox titrations.
Limitations
Solutions with colloids or solids in suspension. Samples containing sulphides, reducing sugars or other substances which react with the silver ion.
52 63, gold.
The indicator element is a gold ring.
Applications: Measurements of potential and redox
titrations in samples with chromo or iron ions, also in
the determination of Chemicla Oxygen Demand (COD).
Limitations
Solutions with colloids or solids in suspension. Samples containing sulphides, reducing sugars or other substances which react with the silver ion.
52 62, platinum, for difficult samples.
The indicator element is a platinum ring. With sleeve diaphragm and CRISOLYT electrolyte. Applications: measuring potential redox in viscous media, with solids in suspension, waste water, galvanizing baths, etc., and performing redox titrations. Limitations
Temperatures above 60 °C.
52 69, gold, for difficult samples.
The indicator element is a gold ring.
With sleeve diaphragm and CRISOLYT electrolyte.
Applications: Measuring potential and redoxtitrations in
samples with chrome or iron ions.
Limitations
Temperatures above 60 °C.
0 12
0 12
m
II
a3
Technical specifications
Electrode
50 55
52 60
52 61
52 63
52 62
52 69
Measuring range
± 2000 mV
Indicator metal
Pt
Ag
Pt
Au
Pt
Au
Operating temp. (°C)
0...80
0...80
0...80
0...80
0...60
0...60
Reference system
Ag/AgCI
Encapsulated Ag/AgCI
Diaphragm
ceramic
sleeve
Electrolyte
Gel
KN031M
CRISOLYT A
CRISOLYT
Body material
PSU
glass
glass
glass
glass
glass
lt)
00 II
52 60 Ag 52 61 Pt 52 63 Au
PSU: Polysulfone
For orders: Please indicate code
52 62 Pt 52 69 Au
50 55 Pt
Laboratory Catalogue 2004 1st Edition

pageCatalog pdf di En 2012-05-22-28