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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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Keyword Search:
1 – 15 of 377 results
1

HydroSpec™ Base Buffer, Ricca Chemical

Achieve high performance and reliable results. Hydrospec™ supports a wide range of sample types that help you produce the fast, reliable, and reproducible results you are looking for.

CAS 67-56-1
Packaging Amber Glass Bottle
CAS Min % 90
Chemical Name or Material Base Buffer
Grade Karl Fischer
2

HydroSpec™ Acid Buffer, Ricca Chemical

Achieve high performance and reliable results. Hydrospec™ supports a wide range of sample types that help you produce the fast, reliable, and reproducible results you are looking for.

CAS 67-56-1
Packaging Amber Glass Bottle
CAS Min % 10
Chemical Name or Material Acid Buffer
Grade Karl Fischer
3

Buffer Solution for Strong Bases, ≤ 600 ppm, MilliporeSigma™

Buffer solution for strong bases for Karl Fischer Titration Aquastar™.

4

Buffer Solution for Strong Acids, ≤ 200 ppm, MilliporeSigma™

Buffer solution for strong acids for Karl Fischer Titration Aquastar™.

5

HYDRANAL™ - Buffer Acid, Buffer substance for KF titration, Solstice
BIOPHARMA GSA_VA

Liquid buffer medium for Karl Fischer titration in acidic samples (based on imidazole).

6

HYDRANAL™-Buffer Base, Solstice
BIOPHARMA

Liquid buffer medium for Karl Fischer titration in alkaline samples (based on salicylic acid)

CAS 121-44-8
MDL Number MFCD00147178
Health Hazard 2 P210-P280-P304 + P340 + P312-P305 + P351 + P338 + P310-P370 + P378-P403 + P235
Flash Point 11°C (51.8°F)
UN Number UN1993BE
Chemical Name or Material HYDRANAL™-Buffer Base
8

HYDRANAL™ - Medium K, Solstice
BIOPHARMA

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

EDGE
UN Number UN1992
9

HYDRANAL™-Composite 1, Titrating agent for volumetric one-component Karl Fischer titration (methanol free), Solstice

Molecular Formula: C3H5IN2 Molecular Weight (g/mol): 195.99 InChI Key: JBOIAZWJIACNJF-UHFFFAOYSA-N IUPAC Name: 1H-imidazole hydroiodide SMILES: I.N1C=CN=C1

EDGE
Molecular Weight (g/mol) 195.99
SMILES I.N1C=CN=C1
IUPAC Name 1H-imidazole hydroiodide
InChI Key JBOIAZWJIACNJF-UHFFFAOYSA-N
Molecular Formula C3H5IN2
10

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

CAS: 111-90-0

EDGE
CAS 111-90-0
11

HYDRANAL™-Standard 5.0, Solstice
BIOPHARMA GSA_VA

Test solution for rough check of volumetric KF equipment.

EDGE
CAS 95-47-6
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
13

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

CAS: 109-86-4

EDGE
Boiling Point 60°C
CAS Min % ≥20.0000%
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 109-86-4
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%
14

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

CAS: 67-56-1

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%
15

HYDRANAL™-Sodium tartrate dihydrate, Solstice
BIOPHARMA GSA_VA

Test substance for volumetric Karl Fischer titration (water content ∼15.66%, exact value on report of analysis)

EDGE
UN Number NONH for all modes of transport
Chemical Name or Material HYDRANAL™-Sodium tartrate dihydrate