Merck Karl fischer reagent is the most trusted method for measuring moisture content in lab samples. It reacts specifically with water and gives you an accurate moisture reading whether you are testing a pharmaceutical ingredient, a food product, or an industrial chemical.
This Merck version is a pyridine-free single solution. It is ready to use straight from the bottle no mixing, no preparation needed. Just fill your burette and start testing.
The pyridine-free formula makes it safer and easier to handle than older KF reagent formulas. No toxic fumes, no strong smell, and simpler disposal. It is the cleaner, more practical choice for labs that run moisture testing regularly.
The idea behind KF reagent is simple. When you add it to a sample, it reacts with the water in that sample and only the water. The more reagent you use before the reaction stops, the more moisture was in the sample.
That is the basis of Karl Fischer titration. The result tells you the exact moisture content of your sample expressed as a percentage or in parts per million (ppm).
Understanding the karl fischer reagent composition helps explain why it works. It contains four things: iodine, sulphur dioxide, an organic base, and a solvent. The iodine reacts with the water. The other components keep the reaction running smoothly. In older formulas, pyridine was used as the base. In this version, pyridine is replaced with imidazole a safer alternative that does the same job without the health risks.
This kf reagent composition makes it both effective and practical for everyday lab use.
Here is what makes this product stand out from other KF reagents:
|
Parameter |
Details |
|
Product Name |
Karl Fischer's Solution Pyridine-Free Single Solution |
|
Product Code |
10925802501730 |
|
HSN Code |
38229090 |
|
Brand |
Merck Millipore |
| Pack Size |
2 x 250 ml |
|
Type |
Single solution, pyridine-free |
| Application |
Moisture testing by Karl Fischer titration |
| Compatible Methods | IP, BP, USP moisture tests |
| Category | Lab Chemicals |
| Storage | Cool, dry — keep away from light and moisture |
Pharmaceutical labs
Moisture limits for drug ingredients and finished products are set by pharmacopoeias like IP, BP, and USP. Exceeding those limits can mean a failed batch, a recall, or a compliance issue. Karl fischer reagent is the accepted method for measuring this moisture — and this Merck version meets pharmacopoeial testing requirements directly.
Food and beverage labs
Too much moisture in food causes spoilage and microbial growth. Too little affects texture and quality. Food testing labs use kf reagent to check moisture levels in raw materials, finished products, and packaging — quickly and with a high degree of accuracy.
Chemical and industrial labs
Moisture in solvents, polymers, oils, and industrial chemicals can affect how those materials behave in production. Chemical labs use karl fischer reagent to verify that incoming materials and outgoing products are within their moisture specifications.
Medical device and packaging labs
Moisture can damage device components, weaken seals, and compromise sterile packaging. Testing labs use kf reagent to check moisture in materials before they are approved for use in medical applications.
Tip: When storing your KF calibration standards between tests, use properly sealed working standard vials with PTFE septa. They keep moisture out of your stored solutions and prevent evaporation — which helps maintain the accuracy of your KF titer.
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