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.

1 – 15 of 248 results

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

Pricing & Availability
Specifications

CAS	68007-08-9
UN Number	UN1230

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

Pricing & Availability

HYDRANAL™ - KetoSolver, Reagent for volumetric one-component KF titration in aldehydes and ketones (working medium), Honeywell Fluka™

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

Pricing & Availability
Specifications

CAS	101023-55-6

HYDRANAL™ - Solvent, Reagent for volumetric two-component KF titration (working medium), Honeywell Fluka™

Pricing & Availability
Specifications

MDL Number	MFCD00147197

HYDRANAL™ - Water Standard 1.0, Standard for Karl Fischer titration (water content 1 mg/g = 0.1%), verified against NIST SRM 2890 & NMIJ CRM 4222, Honeywell™ Fluka™

CAS: 108-32-7,100-66-3

Pricing & Availability
Specifications

CAS	108-32-7,100-66-3

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

CAS: 71-36-3,108-32-7,95-47-6

Pricing & Availability
Specifications

CAS	71-36-3,108-32-7,95-47-6

HYDRANAL™ - Coulomat A, Reagent for coulometric KF titration (anolyte solution), preferred for cells with diaphragm, Honeywell Fluka™

Pricing & Availability
Specifications

Boiling Point	59°C
CAS Min %	≥1.0000%
UN Number	UN1992
Chemical Name or Material	HYDRANAL™ - Coulomat A
Grade	Coulometric KF Titration
Density	1.070 g/cm3
Name Note	Reagent for coulometric KF titration (anolyte solution), preferred for cells with diaphragm
CAS	68007-08-9
Packaging	Glass Bottle
Flash Point	11°C
DOT Information	Transport Hazard Class: 3; Packing Group:3: II; Proper Shipping Name: Flammable liquids, toxic, n.o.s.
Synonym	Methyl alcohol
Recommended Storage	Room Temp
Shelf Life	1800 days from date of manufacture
CAS Max %	<5.0000%

HYDRANAL™ - Medium K, Honeywell Fluka™

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

Pricing & Availability
Specifications

UN Number	UN1992

AQUASTAR™ Coulomat A (Original Formulation), MilliporeSigma™

Pricing & Availability

HYDRANAL™-Solvent, Medium for volumetric two-component Karl Fischer titration (methanol-based), Fluka, Honeywell

CAS: 7446-09-5 Molecular Formula: O2S Molecular Weight (g/mol): 64.06 InChI Key: RAHZWNYVWXNFOC-UHFFFAOYSA-N IUPAC Name: (oxo-λ⁴-sulfanylidene)oxidane SMILES: O=S=O

Pricing & Availability
Specifications

CAS	7446-09-5
Molecular Weight (g/mol)	64.06
SMILES	O=S=O
IUPAC Name	(oxo-λ⁴-sulfanylidene)oxidane
InChI Key	RAHZWNYVWXNFOC-UHFFFAOYSA-N
Molecular Formula	O2S

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

For two-component system. Water equivalent: 5.0mg H₂O/mL

Pricing & Availability

HYDRANAL™ - Composite 5 K, Reagent for volumetric one-component Karl Fischer titration in aldehydes and ketones (methanol free), Honeywell™ Fluka™

Pricing & Availability
Specifications

CAS	68007-08-9

HYDRANAL™-Standard 5.0, Honeywell Fluka™

Test solution for rough check of volumetric KF equipment.

Pricing & Availability
Specifications

CAS	71-36-3
Health Hazard 2	P210-P261-P280-P305 + P351 + P338 + P310-P370 + P378
Flash Point	27°C (80.6°F)
UN Number	UN1993C
Chemical Name or Material	HYDRANAL™-Standard 5.0

HYDRANAL™-Composite 2, Titrating agent for volumetric one-component Karl Fischer titration (methanol free), Fluka, Honeywell

CAS: 68007-08-9,288-32-4,7446-09-5,7553-56-2,693-98-1 Molecular Formula: C3H5IN2 Molecular Weight (g/mol): 195.99 InChI Key: JBOIAZWJIACNJF-UHFFFAOYSA-N IUPAC Name: 1H-imidazole hydroiodide SMILES: I.N1C=CN=C1

Pricing & Availability
Specifications

CAS	68007-08-9,288-32-4,7446-09-5,7553-56-2,693-98-1
Molecular Weight (g/mol)	195.99
SMILES	I.N1C=CN=C1
IUPAC Name	1H-imidazole hydroiodide
InChI Key	JBOIAZWJIACNJF-UHFFFAOYSA-N
Molecular Formula	C3H5IN2

HYDRANAL™ - Coulomat AK, Reagent for coulometric KF titration in ketones (anolyte solution), preferred for cells with diaphragm, Honeywell Fluka

Pricing & Availability
Specifications

Boiling Point	60°C
CAS Min %	≥1.0000%
UN Number	UN1992
Chemical Name or Material	HYDRANAL™ - Coulomat AK
Grade	Karl Fischer
Density	1.200 g/cm3
Name Note	Reagent for coulometric KF titration in ketones (anolyte solution), preferred for cells with diaphragm
CAS	7446-09-5
Packaging	Glass Bottle
Flash Point	32°C
DOT Information	Transport Hazard Class: 3; Packing Group:3: III; Proper Shipping Name: Flammable liquids, toxic, n.o.s.
Recommended Storage	Room Temp
Shelf Life	1800 days from date of manufacture
CAS Max %	<5.0000%

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Karl Fischer Buffers and Reagents

Karl Fischer Buffers and Reagents

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