Electrodes for Titration Which electrode for which application?

Application

Specifics

Electrode

Order no.

Ecotrode Plus

6.0262.100

General

Ecotrode Gel

6.0221.100

Alkaline samples, Bayer liquors. Titrations performed at high temperatures Unitrode

6.0259.100

Acidity of alcoholic beverages Unitrode easy Clean with Pt1000

6.0260.010

Aqueous acid/

Titrations with small sample volumes Flat membrane pH electrode 6.0256.100

base titrations

Titrations in water having a low conductivity Aquatrode Plus

6.0253.100

Carbonate hardness, acid capacity of water, p- & m-value Aquatrode Plus with Pt1000

6.0257.600

Electroplating baths, etching baths, phosphate coating Profitrode

6.0255.100

Electroplating and etching baths containing fluoride or hydrofluoric acid Solitrode HF

6.0223.100

Protein-containing samples Porotrode

6.0235.200

Determination of the base number (TBN) of mineral oils, titrations with perchloric acid, cyclohexylamine, alcoholic HCl Solvotrode easy Clean with LiCl Non-aqueous

sat in ethanol

6.0229.010

acid/base titrations

Determination of the acid number (TAN) of mineral oils, titrations with alcoholic KOH, NaOH and TBAOH, Solvotrode easy Clean 6.0229.010

potassiummethylate, free acids; hydroxyl number of oils and fats c(TEABr) = 0.4 mol/L in ethylene glycol) (+ 6.2320.000)

Redox titrations

Titrations at constant pH value Pt-Titrode

6.0431.100

Arsenite, cerium sulfate, Redox titrations at varying pH value Combined Pt-ring-electrode 6.0451.100

iron(III), iodine,

Chemical oxigen demand in water (ferrometry) Combined Au-ring-electrode 6.0452.100

potassium bromate,

sodium nitrite, oxalic acid, Penicillin, ampicillin

Combined Au-ring-electrode 6.0452.100

permanganate, thiosulfate, Titrations in Ipol mode

Double Pt sheet electrode 6.0309.100

titan(III), Hg(NO3)2

Bromatometry, iodometry, cerimetry according to Ph. Eur. & USP

Pt-Titrode

6.0431.100

Karl Fischer Titrations Water content according to Karl Fischer Double Pt-wire electrode

(HF-resistant version on request) 6.0338.100

Complexometric

Back-titration of the Ba2+ excess with EDTA Combined Ca2+ -ISE polymer membrane 6.0510.100

Titrations with

Determination of Ca2+, Mg2+ (Application Bulletin 125) Combined Ca2+-ISE polymer membrane 6.0510.100

EDTA, Complexon© III and IV

Determination of Al, Ba, Bi, Ca, Cd, Co, Fe, Mg, Ni, Pb, Zn (Application Bulletin 101) Cu2+ ISE – crystal membrane 6.0502.140

Chloride in general, sodium chloride in food Ag-Titrode

6.00430.100

Chloride in dialysis and infusion solutions Ag-Titrode with Ag2S-coating 6.00430.100S

Precipitation titrations Titrations according to Ph.. Eur. & USP

Ag-Titrode with Ag

Titrations with

2S-coating

6.00430.100S

silver nitrate

Determination of hydrogen sulfide, mercaptans, carbonyl sulfide, sulfides Ag-Titrode with Ag2S-coating 6.00430.100S

Chloride, bromide, iodide and cyanide in electroplating baths Ag-Titrode with Ag2S-coating 6.00430.100S

Fluoride/hydrofluoric acid in etching baths F–-ISE crystal membrane

6.0502.150

Photometric titrations Titration in aqueous and non-aqueous media; choice of eight wave lengths (470, 502, 520, 574, 590, 610, 640, 660 mn) Optrode

6.1115.000

Surfactants in

Titration of anionic and cationic surfactants, titrations in chloroform, surfactant formulations containing oils, pH <10

Surfactrode Resistant

6.0507.130

non-aqueous media

Aromatic/aliphatic, hydrocarbons, ketones, chloroethanes,

Titration of anionic and cationic surfactants, titration of washing agents, soaps, pH >10

Surfactrode Refill

6.0507.140

methylisobutylketone

Titration of cationic surfactants Cationic Surfactant

6.0507.150

Surfactants in aqueous media Titration of anionic surfactants Ionic Surfactant

6.0507.120

Titration of non-ionic surfactants, titration of pharmaceutical ingredients with sodium tetraphenylborate NIO electrode

6.0507.010

Titrations in aqueous and non-aqueous solutions without HF

Thermoprobe

6.9011.020

Thermometric titrations Titrations in aqueous solutions containing HF

Thermoprobe HF

6.9011.040





Practical tips, care and maintenance of electrodes for titration Combined

Ecotrode Plus

Ecotrode Gel

Unitrode

Aquatrode

Solvotrode

Ag/Pt/Au-

Surfactant

Plus

Profitrode

easyClean Ag/Pt/

Surfactrodes

Optrode

Titrodes

Au electrodes

electrodes

Fixed ground-joint

Twin-pore diaphragma

Fixed ground-joint

Fixed ground-joint

Ground-joint

easy Clean diaphragm Maintenance-free pH

Ceramic-pin

For surfactant

For surfactant

Power supplied by

diaphragm

• For routine

diaphragm

diaphragm

diaphragm

• For titrations in glass reference system diaphragm titrations in non-titrations in aqueous

titrator via USB,

• Insensitive to

measurements in

• Very low alkali error • Rapid response

• For difficult matrices nonaqueous



• Also available as

• For precipitation or aqueous media

media

no separate power

contamination

similar samples

• Insensitive to

in iondeficient or

• Double-junction

matrices

micro-electrodes

redox titrations with

adapter needed

• Attractive price/

• With lifetime

contamination

weakly buffered

construction

• Rapid response in with 6.4 mm

change of pH value

Surfactrode

NIO electrode

performance ratio

indicator

• High-temperature solutions

organic solvents

Resistant

(6.0507.010)1)

diameter

• Maintenance-free resistance

• Insensitive to

• Electrically shielded (6.0507.130)1)

For titration of non-

Ordering Info:

reference electrolyte

contamination

Resistant to chloro-

ionic surfactants

Ag-Titrode:

(gel)

Ordering Info:

form and many other

6.0259.1001)

6.00430.1001)

solvents.

Ionic Surfactant

(6.0507.120)1)

Ordering Info:

Ordering Info:

6.0258.600

Ordering Info:

Ordering Info:

Ordering Info:

Pt-Titrode:

Ordering Info:

Surfactrode Refill

Optimized for anionic

Ordering Info:

6.0262.1001)

6.0221.1001)

(with Pt1000)4)

6.0431.1001)



6.0253.1001)

6.0255.1001)

6.0229.010

Ag: 6.00450.1001)

(6.0507.140)1)

surfactants

6.1115.000

iEcotrode Plus:

6.0221.600

iUnitrode:

6.0257.600

(Fitting length =

(1 m fixed cable)

Micro-Au Titrode:

Pt: 6.0451.1001)

Refillable surfactant

Cationic Surfactant

Optional:

6.0280.3002)

(with NTC)4)

6.0278.3002)

(with Pt1000)4)

113 mm)

6.0229.020

electrode, thus

6.0435.1101)

Au: 6.0452.1001)

practically unlimited

(6.0507.150)1)

6.2166.000 USB

dEcotrode Plus:

dUnitrode:

iAquatrode Plus:

6.0255.1101)

(2 m fixed cable)

iAg-Titrode:

working life.

Optimized for cationic

power supply unit

6.00201.3003)

6.00200.3003)

6.0277.3002)

(Fitting length =

iAg: 6.00450.3002)

surfactants

for titrators without

6.00470.3002)

170 mm)

dSolvotrode:

Not resistant to

USB connector.

Unitrode easy Clean: dAquatrode Plus:

6.00203.3003)

iPt: 6.0451.3002)

chloroform.

iPt-Titrode: 6.0471.3002) 6.0260.010

6.00202.3003)

6.0255.1201)

dAg: 6.00402.3003)

Surfactrode refill

dAg-Titrode:

(with Pt1000,

(Fitting length =

paste: 6.2319.000

6.00404.3003)

1.2 m fixed cable)

310 mm)

dPt: 6.00403.3003)

dProfitrode:

dPt-Titrode:

6.00204.3003)

6.00401.3003)

Store in 6.2323.000

Store in 6.2308.000

Use 6.2308.040

Store in 6.2323.000

Store in bridge

Store in reference

Store in distilled water

Store in reference

Store dry.

Store dry.

Allow 5 minutes for

storage solution only.

KCl sat.

Idrolyte for titrations

storage solution only.

electrolyte.

electrolyte.

only.

electrolyte.

Allow a few titrations

Rinse with dist. water

warming up the LED.

Do not wipe electrode. Rinse with water or at temperatures

Testing of the

80...100 °C or to

Do not wipe electrode. Do not wipe electrode. Do not wipe electrode.

Testing of the

for conditioning of

or 20% methanol in

electrodes according

For cleaning/care

ethanol to remove

suppress protein

For cleaning/care

For cleaning/care

In case of contami-

electrodes according

the Surfactrodes.

water.

to AB-048.

6.2325.000 pHit kit

contamination.

precipitation by KCl.

6.2325.000 pHit kit

6.2325.000 pHit kit

na tion with organic

to AB-048.

Reactivate Surfactrode

Wipe carefully with

is recommended.

Ag Titrodes also

Rinse with water or

is recommended.

is recommended.

residues, immerse

Ag ring electrodes also Resistant with fine-a methanol-soaked

available with Ag

ethanol.

Lift sleeve ring for

sensor in an appro-

2S or

available with Ag2S or

grained sandpaper if

tissue to remove any

priate solvent

Ag-halide coating.

Ag-halide coating.

response is poor.

adhering contami-

Do not wipe electrode.

cleaning of ground-

joint diaphragm. If the (for 30 min.).

Testing of the

nation.

Unitrodes filled with

sleeve ring is blocked, Condition glass electrodes according

Do not use in organic

c(KCl)=3 mol/L should

immerse in hot water

membrane in dist.

to AB-305.

matrices or at

be stored in

for a few minutes

water before next

temperatures >40 °C.

6.2323.000

to dissolve adhering

titration.

storage solution.

material.

Testing of the

Alternative electrolyte:

electrodes according

For cleaning/care

Spare ground-joint

c(TEABr) = 0.4 mol/L

to AB-305.

6.2325.000 pHit kit

diaphragm for

in ethylene glycol

is recommended.

Profitrodes

(6.2320.000).

6.0255.1X0:

Order no. 6.1243.020

8.109.6005EN – 2019-04

1) Electrodes with no cable and no temperature probe have plug-in head G



2) An iConnect 2.854.0010 is required to connect an iTrode to the instrument.

3) dTrodes can only be used with a digital measuring module at an OMNIS Titrator / Titration Module.

4) Electrodes with no cable and with an integrated temperature sensor have plug-in head U