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Karl Fischer Buffers and Reagents

Buffers and reagents intended for use with Karl Fischer (KF) titration techniques. KF titration is a classic titration method that uses coulometric or volumetric titration to determine the moisture content of a sample.

Karl Fischer (KF) reagents are used in the analytical technique developed by chemist Karl Fischer to accurately measure the water content of gases, liquids, and solids.

Key applications include:

  • Analyzing water content in raw materials and finished products
  • Estimating moisture in food, pharmaceuticals, chemicals, and petroleum products
  • Determining the water content of laboratory samples.

Karl Fischer reagents contain a variety of chemicals in proprietary formulations. Consult the SDS for individual products for appropriate handling instructions and precautions.

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1 – 15 of 416 results
1

Karl Fischer Aqualine™ Complete 5K, for Karl Fischer Titration By Volumetry, Fisher Chemical™

EDGE
MDL Number 81734
Packaging Amber glass bottle
Physical Form Liquid
2

Honeywell Chemicals HYDRANAL™ - Water Standard 0.1, Standard for Karl Fischer titration (water content 0.1 mg/g = 0.01%), verified against NIST SRM 2890 & NMIJ CRM 4222, Honeywell™ Fluka™
BIOPHARMA GSA_VA

EDGE
3

Honeywell Chemicals HYDRANAL™ - Composite 5, Reagent for volumetric one-component Karl Fischer titration (methanol free), Honeywell™ Fluka™
BIOPHARMA GSA_VA

EDGE
CAS 111-90-0
4

Honeywell Chemicals HYDRANAL™ - Coulomat AG-Oven, Reagent for coulometric KF titration with oven (anolyte solution), for cells with and without diaphragm, Honeywell Fluka
BIOPHARMA GSA_VA

EDGE
Boiling Point 64°C
CAS Min % ≥20.0000%
UN Number UN1230
Chemical Name or Material HYDRANAL™ - Coulomat AG-Oven
Grade Karl Fischer
Density 0.980 g/cm3
Name Note Reagent for coulometric KF titration with oven (anolyte solution), for cells with and without diaphragm
CAS 57-55-6
Packaging Glass Bottle
Flash Point 13°C
DOT Information Transport Hazard Class: 3; Packing Group:3: II; Proper Shipping Name: Methanol Solution
Recommended Storage Room Temp
Shelf Life 1800 days from date of manufacture
CAS Max % <10.0000%
5

Honeywell Chemicals HYDRANAL™ - Composite 2, Reagent for volumetric one-component Karl Fischer titration (methanol free), Honeywell™ Fluka™
BIOPHARMA GSA_VA

EDGE
CAS 111-90-0
6

Honeywell Chemicals HYDRANAL™ - Water Standard 10.0, Standard for Karl Fischer titration (water content 10 mg/g = 1.0%), Honeywell™ Fluka™
BIOPHARMA GSA_VA

EDGE
7

Honeywell Chemicals HYDRANAL™ - Medium K, Honeywell Fluka™
BIOPHARMA

Medium for volumetric one-component Karl Fischer titration in aldehydes and ketones (methanol free).

EDGE
UN Number UN1992
8

Honeywell Chemicals HYDRANAL™ - Coulomat AG, Reagent for coulometric KF titration (anolyte solution), for cells with and without diaphragm, Honeywell Fluka™
BIOPHARMA GSA_VA

EDGE
CAS 288-32-4
UN Number UN1230
9

MilliporeSigma CombiCoulomat Fritless Reagent, Apura™, EMD Chemicals
GSA_VA

Synonym: Coulometric Single Solution

EDGE
Synonym Coulometric Single Solution
10

CombiTitrant 5, Aquastar™, MilliporeSigma™

Molecular Formula: Mixture Synonym: carl fischer

Synonym carl fischer
Molecular Formula Mixture
11

Fisher Scientific Karl Fischer Aqualine™ Complete 5, for Karl Fischer Titration By Volumetry, Fisher Chemical™

Single-component reagent; Pyridine free

Name Note Karl Fischer Reagent
CAS 7553-09-5
Health Hazard 3 Emergency Overview
Causes burns by all exposure routes. Harmful by inhalation. Possible risk of harm to the unborn child.
NFPA
Health:
Health Hazard 2 DANGER!
Color Brown
Physical Form Liquid
Health Hazard 1 Signal Word: DANGER!
Chemical Name or Material Aqualine™ Complete 5
Cleanup Symbol Solvent
ChemAlert Storage Symbol Gray
12

Karl Fischer Aqualine™ Sodium Tartrate-2H2O, for Karl Fischer Titration, Fisher Chemical

Molecular Formula: C4H8Na2O8 Molecular Weight (g/mol): 230.08 MDL Number: MFCD00150035 InChI Key: FGJLAJMGHXGFDE-UDMGOBQRNA-L PubChem CID: 131855972 IUPAC Name: (2R,3R)-2,3-dihydroxybutanedioic acid;sodium;dihydrate SMILES: O.O.[Na+].[Na+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O

EDGE
PubChem CID 131855972
Molecular Weight (g/mol) 230.08
MDL Number MFCD00150035
SMILES O.O.[Na+].[Na+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
IUPAC Name (2R,3R)-2,3-dihydroxybutanedioic acid;sodium;dihydrate
InChI Key FGJLAJMGHXGFDE-UDMGOBQRNA-L
Molecular Formula C4H8Na2O8
13

Karl Fischer Aqualine™ Matrix K, for Karl Fischer Titration By Volumetry, Fisher Chemical™

EDGE
MDL Number 81734
Color Colorless
Packaging Amber glass bottle
Physical Form Liquid
14

Honeywell Chemicals HYDRANAL™ - Methanol dry, Reagent for volumetric one-component KF titration (working medium), Honeywell Fluka™
BIOPHARMA GSA_VA

15

CombiMethanol Solvent, MilliporeSigma™

CombiMethanol Solvent for volumetric Karl Fischer titration with one component reagents max. 0.01% H2O Aquastar™.

Boiling Point 64.5°C (1013 hPa)
CAS 67-56-1
Molecular Weight (g/mol) 32.04
Packaging Glass Bottle
Flash Point 9.7°C
Synonym MeOH, Hydroxymethane, Methyl alcohol, Carbinol,Hydroxymethane,Methyl alcohol,Carbinol
Recommended Storage Store at 15 to 25°C
Molecular Formula CH4O
Density 0.792 g/cm3 (at 20°C)
Melting Point −98°C