Aqueous acid/bases

c(KCl) = 3 mol/L
6.2308.020

Idrolyte
6.2308.040

6.0234.100

6.0227.100

c(KCl) = 3 mol/L

6.2308.020

Shaft diameter 6.4 mm, minimal immersion depth; 10 mm

Shaft diameter 12 mm, minimal immersion depth; 1–2 mm

titrations in water with low conductivity

c(KCl) = 3 mol/L

6.2308.020

Perchloric acid

easy to clean sleeve diaphragm

IMPORTANT: When not in daily use, store in LiCI sat. in ethanol and soak membrane in distilled water before use. However, when in daily use, store in distilled water, so that only the membrane is immersed, not the diaphragm. Before the measurement lift the diaphragm sleeve slightly and allow a small amount of electrolyte to flow out. Rinse the electrode with distilled water, replenish the reference electrolyte and start the titration (see bottom of chart).

IMPORTANT: Never fill the Solvotrode with LiCIO₄ in glacial acetic acid!

TBAOH

c(TEABr) = 0.4 mol/L in ethylen glycol¹

6.2320.000

Potassium methylate

6.0229.100

c(TEABr) = 0.4 mol/L in ethylen glycol¹
6.2320.000

Cyclohexyl-amine

c(LiCl) = 2 mol/L in ethanol 6.2312.010

Silver nitrate

Ag-Titrode, possibly Ag₂S coated

c(KCl) = 3 mol/L

6.2308.020

Karl Fisher reagent

Double Pt-wire electrode

Cr³⁺ , Fe²⁺,

L = 160 mm, Loger version available: (6.9904.023), L= 250 mm

EDTA

Back-titration of the BaCl₂ excess. For sulphate determination see AB 140.

c(KCl) = 3 mol/L

6.2308.020

a separate reference electrode is needed.
Order no: 6.0750.100

EDTA

Complexon® III and IV

Determination of Al, Ba, Ca, Cd, Bi, Co, Fe, Mg, Ni, Pb, Zn. See AB 125

Ion selective electrode Cu²⁺

6.0502.140

c(KCl) = 3 mol/L

6.2308.020

Polymer membrane electrode, Ca²⁺

Surfactants in aqueous media

Tego® trant A 100,²
see AB 233

c(KCl) = 3 mol/L

6.2308.020

a separate reference electrode is needed.
Order No: 6.0726.100

sodium lauryl sulphate, see AB 233

c(KCl) = 3 mol/L

6.2308.020

Sodium tetra phenyl borate, see AB 230, AB 263

Inner chamber of the reference electrode:
c(KCI) = 3 mol/L (6.2308.020)
Outer chamber: c(NaCL) = 1 mol/L

a separate reference electrode is needed.
Order No: 6.0726.107

Non aqueous surfactants

Nonaqueous media, solvents as Chloroform, MIKB, see AB 269

c(KCl) = 3 mol/L

6.2308.020

a separate reference electrode is needed.
Order No: 6.0726.107

electrode not suitable for high salt concentrations and pH > 10

Nonaqueous media, solvents as MIKB

Two phase titration, see AB 269

c(KCl) = 3 mol/L

6.2308.020

a separate reference electrode is needed.
Order No: 6.0726.107

electrode not suitable for Chloroform

AB = Application Bulletin

* All these electodes are equipped with a Metrohm plub-in head G3

1) TEABr 0.4 mol/L tetra ethyl ammonium bromide in ethylene glycol (6.2320.000) is an electrolyte solution for non-aqueous titrations. It is very useful when titrating low acid contents with TBAOH. In such cases the LiCI sat. in ethanol (6.2312.000) would cause an alkali error during the measurement. The Solvotrode is a combined pH glass electrode specially designed for non-aqueous titrations. This electrode is normally filled with LiCI sat. in ethanol. However, when titrating with TBAOH we strongly recommend replacing the CiCI electrolyte with 0.4 mol/L TEABr in ethylene glycol. This electrolyte can of course also be used for all other non-aqueous titrations with various titrants.

2) TEGO trant A 100
6.2317.000 (6 g)
6.2317.010 (60 g)
Available on request 6.2317.020 (500 g)

3 To connect an electrode with plug-in head G to a Titrino or 726/796 Titroprocessor, use one of the following cables: 6.2104.020 (1 m), 6.2104.030 (2 m) or 6.2104.040 (3 m); to connect an electrode an electrode with plug-in head S to the above instruments, use cable 6.2104.510 (1 m). See Metrosensor Electrode Catalog for additional information.

Storage of the Solvotrode when not in daily use: Store the Solvotrode in LiCI sat. in ethanol. Use a normal electrode holder.