Ion Selective Electrode for Iodide and Cyanide

I^-/CN^-

Technical Data Sheet

Structure of the Electrode

range^*:

0.01 to 5,000 mg/L iodide
0.03 to 260 mg/L cyanide

The iRAS iodide/cyanide selective electrode is a solid state membrane electrode. the ion selective membrane consists of a gighly compressed AgI/Ag₂S sensor element embedded in a plastic shaft by means of a special resin.

Ordering Information

PO No.	Type	Description
106 100	I/CN	selective electrode with 1m sealed cable
106 101	I/CN	selective electrode with 1m sealed cable with BNC connector
106 102	I/CN	selective electrode with 1m sealed cable with DIN connector
106 005	I/CN	selective electrode with indutrial threaded head
107 004	I/CN	selective threaded mini electrode with BNC connector

slope of characteristic:

57 (+-)2 mV/pI or pCN

response time in 26 mg/L cyanide or 127 mg/L iodide solution:

< 30 sec

drift within 30 minutes:

0.3 mV

drift within 24 hours:

1 mV

concentration of interfering ion species:

Br^-: 3 10^-3 times
Cl^-: 10⁶ times
S^2-: traces
Hg²⁺, Ag⁺, Pb²⁺, Tl⁺: affect solution to be analysed (precipitation)

pH range:

7 - 14 (cyanide determination)
2 - 14 (iodide determination)

temperature range:

0 - 80 °C

resistance:

< 0.1 MOhm

sensor material:

AgI/Ag₂S die-pressed

shaft material:

plastic

dimensions:

immersion depth 120mm
diameter 12 mm