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Karl Fischer Buffers and Reagents

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 83 results
1

HYDRANAL™ - Composite 5, Honeywell Fluka™

Titrating agent for volumetric, one-component Karl Fischer titrations (Methanol-free)

Promotions are available
Boiling Point 194°C (at 1.013 hPa)
CAS 111-90-0
Color Brown
Solubility Information Completely Miscible in Water
Physical Form Liquid
Packaging Metrohm OMNIS Smart Reagent
pH 4.5 to 5.5 (at 20°C)
Flash Point 99°C
Chemical Name or Material HYDRANAL™ - Composite 5
Grade Volumetric One-Component KF Titration
Synonym DE Solvent; 2-(2-Ethoxyethoxy)ethanol; CARBITOL; Diethylene glycol ethyl ether; Ethyldiglycol
Recommended Storage Ambient
2

HYDRANAL™-Water Standard KF-Oven, 150-160°C, Honeywell Fluka™

Standard for Karl Fischer oven check (water content ∼5.0%, exact value on report of analysis)

4

HYDRANAL™-Sodium tartrate dihydrate, Honeywell Fluka™

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

UN Number NONH for all modes of transport
Chemical Name or Material HYDRANAL™-Sodium tartrate dihydrate
5

HYDRANAL™ - Medium K, Honeywell Fluka™

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

UN Number UN1992
6

HYDRANAL™-Standard 5.0, Honeywell Fluka™

Test solution for rough check of volumetric KF equipment.

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
7

HYDRANAL™ - Coulomat CG, Reagent for coulometric KF titration (catholyte solution), Honeywell Fluka™

CAS 7446-09-5
Health Hazard 2 P210-P280-P304 + P340 + P312-P305 + P351 + P338 + P310-P370 + P378-P403 + P235
UN Number UN1230
8

HYDRANAL™ - Formamide dry, Solvent for KF titration, Honeywell Fluka™

CAS: 75-12-7 Molecular Formula: CH3NO Molecular Weight (g/mol): 45.04 MDL Number: MFCD00007941 InChI Key: ZHNUHDYFZUAESO-UHFFFAOYSA-N PubChem CID: 713 ChEBI: CHEBI:48431 IUPAC Name: formamide SMILES: NC=O

PubChem CID 713
CAS 75-12-7
Molecular Weight (g/mol) 45.04
ChEBI CHEBI:48431
MDL Number MFCD00007941
SMILES NC=O
IUPAC Name formamide
InChI Key ZHNUHDYFZUAESO-UHFFFAOYSA-N
Molecular Formula CH3NO
9

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

Boiling Point 64°C
CAS Min % ≥5.0000%
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 68007-08-9
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%
13

HYDRANAL™-Solvent E, Honeywell Fluka™

Medium for volumetric two-component Karl Fischer titration (ethanol-based)

CAS 7446-09-5
MDL Number MFCD01867183
Health Hazard 2 P201-P210-P280-P308 + P313-P370 + P378-P403 + P235
Flash Point 12°C (53.6°F)
UN Number UN1170
Chemical Name or Material HYDRANAL™-Solvent E
Density 0.90g/mL
14

HYDRANAL™-Buffer Base, Honeywell Fluka™

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
15

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

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%