GFS Chemicals Karl Fischer Reagents - Watermark Brand
Specialty Chemical Manufacturing Expertise Since 1928GFS ChemicalsWatermark Karl FischerReagents & OrganicHalogen Reagent2006-2007 PRODUCT CATALOG
Watermark® Karl Fischer Reagents WATERMARK KARL FISCHER REAGENTSPlease take a few minutes to Volumetric Experience+Innovation=GFSreview our comprehensive Single Reagents Pyridine-Free reagentsKarl Fischer product line, Two-Component Reagents designed to meet all yourincluding pyridine-free needs.reagents and water standards. Coulometric Vessel (anode) and Generator Volumetric Reagents SingleWe’ve got the formulation to (cathode) reagent solutions Solution Methodmeet your needs: for: High volume users find that• Two-Component Volumetric • General Applications this product fits their needs Systems • Water determination in alde- perfectly. Like other single• Patented Non-hygroscopic hydes/ketones solutions on the market, this Titrants Diaphragmless Vessel Solution option in the WATERMARK®• Single Solution Volumetric Reagents• CFC-free Coulometric Reagents• Chloroform-free Reagents• Diaphragmless Cell Reagents• Specialized Reagents and Solvents as neededOur products are made inAmerica. We make it, stock itand ship it from Columbus,Ohio. Most orders ship within24 hours of being placed. Bypurchasing directly from GFS,you save time and money.The WATERMARK®reagent line encompasses allKarl Fischer methodologies:
line works with methanol and other solvents and mixtures of the customer’s choice. We offer you two titer strengths: 5 mg/ml and 2 mg/ml. Just pick the one that fits your applications.WATERMARK KARL FISCHER REAGENTS low water content – perfect Aldehyde and Ketone Working Two-Component Reagent for labs that don’t have a Medium (methanol-free) item Products coulometric titrator. Our #2994. This chloroethanol and Are you re-calibrating your products maintain a titer chloroform solvent system titer frequently? We’ve got strength to +/- 0.05 mg/ml, allows fast and very repro- your answer – a patented thus making them the most ducible titrations for your pyridine-free system that uses advanced and stable Karl aldehyde and ketone analysis. non-hygroscopic reagents! Fischer reagents available It also dissolves non-polar This system, for use in volu- today! samples such as oils and metric titration, has two com- waxes. ponents: The Big Switch Titrant: WATERMARK® Stable A technical advantage of our The Big Switch II (Too) Titrant in 0.50 mg/ml, 1.00 single solution reagent is what “The Big Switch” can also be mg/ml, 2.00 mg/ml, and 5.00 we refer to as “The Big done using the GFS Two- mg/ml. Switch.” WATERMARK® single Component system. If ketone Solvents (Working Medium): solution reagents are typically and/or aldehyde testing is not WATERMARK® Karl Fischer used with methanol, but are commonplace in your lab, it Solvent (methanol-based) formulated to work with inert may be more cost effective to item # 1610 and and non-reactive solvents to use WATERMARK® solvent WATERMARK® Karl Fischer quickly and accurately meas- #1610 for your daily opera- Solvent (methanol-free) item ure moisture in aldehydes and tion. However, the technical # 1608 or #1609. ketones. advantage of the two-compo- nent system is to simply We offer the titrant with the Just exchange the vessel sol- exchange the solvent #1610 lowest titer strength on the vent with hexane, for exam- with the WATERMARK® Karl Fischer market: ple, and you’re ready to check methanol-free KF Solvent 0.5 mg/ml, for samples of very for moisture in ketones. #1608 or #1609. When complete, just switch 30 back to methanol and you’re There is no need to change ready to do your economical, the titrant because of the spe- g 20 CONVENTIONAL PYRIDINE KFR routine analysis again. This cial formulations. It is simple, WATERMARK® SINGLE SOLUTION can be a real time and money fast and unbelievably accu- WATERMARK® TITRANT/SOLVENT 10 saver when analysis of mois- rate! Why waste valuable lab ture in aldehydes and ketones time if you don’t have to? 2 4 6 8 becomes an issue. MINUTES
If you do frequent ketone The WATERMARK® Karl We also offer coulometricanalysis, just use our Fischer system was the first reagents for the analysis ofWATERMARK® KF solvent, Coulometric reagent on the ketones and aldehydes.items #1608 or #1609, which market with a Vessel (Anode)works for all of your samples, reagent solution that also per- WATERMARK® Coulometricwith or without ketones. formed as a Generator reagents also have an (Cathode) reagent solution. extremely high water capacity. WATERMARK KARL FISCHER REAGENTSCoulometric Reagents A special Generator solution This capacity is in excess ofWATERMARK® Karl Fischer (Item #1613) is available for 1000 mg of water/100 mlReagents are designed for use PhotoVolt analyzers but charge. To our knowledge,with most Coulometric sys- can be utilized in most of the this is the highest watertems on the market, including instruments available on the capacity available.Brinkman, PhotoVolt, Mettler, market today. An alternativeMitsubishi, KEM, CSC, Orion “universal” generator solution A Better Buffer Solutionand Fisher. They are specially (Item #2321) is also available. Why mix your own bufferformulated to provide the ulti- solution if you don’t have to!mate in analytical performance. WATERMARK® Buffer solution is more than a buffer solution. It is a complete Karl Fischer solvent that contains sulfur dioxide along with the buffer- ing agents so it can be used directly in the titration vessel. You won’t need to go through the hassle of mixing the buffer with a solvent in order to use it. This is a great time-saver that also increases the consis- tency of your analysis, and it can be used with either the Single Solution or the Two- Component systems.
Water Standards in Adapters similar to this prod- New Product Development Ampoules uct are available from some of GFS Chemicals, Inc. continues Volumetric and Coulometric the European instrument man- to keep an eye toward future Water Standards are available ufacturers (Mettler and development work. Over the in standard 5 ml ampoules. In Brinkman); however, many of years, GFS has introduced order to maintain a very sta- these adapters are made of such products as reagents for ble water content over time, plastic that is not compatible use in Diaphragmless CellsWATERMARK KARL FISCHER REAGENTS our standards are packaged with the WATERMARK® and environmentally responsi- under ultra high purity Argon Product line. The GFS adapter ble reagents without chloro- gas. Each standard package is made from virgin high-den- form or CFC’s. contains 10 ampoules. sity polyethylene and, while it Current concentrations for may discolor over time, it will GFS provides you with the the WATERMARK® Water not decompose like many newest and most advanced Standard line are: other plastics when exposed Karl Fischer formulations for to the WATERMARK® solvent your water determination 0.05 mg/g 1.0 mg/g 0.1 mg/ml matrix. The adapter comes applications. Our develop- 0.1 mg/g 5.0 mg/g 1.0 mg/ml with a set of stock #78551 gas- ment of new products for 0.5 mg/g 10.0 mg/g 5.0 mg/ml ket rings (Item #1625) to both volumetric and coulo- assure a tight fit from bottle metric Karl Fischer titrations All standards come with a cer- to bottle. is ongoing. Among our newer tificate of analysis containing items you will find: actual analytical results at Pyridine-Based Karl Fischer • A new Vessel solution for time of packaging. We also Reagents use in crude oil applica- custom-manufacture stan- We also manufacture a line of tions, GFS Item # 5202 dards for applications requir- Pyridine-based reagents for • A wider selection of ing other water content. customers who prefer the solvents, each one designed classic Karl Fischer formula- for a specific application; Bottle Adapter tions. for example: For those labs that are using a > KF Solvent for Oils (two- European-based instrument, All of these items make the component system), but have American small WATERMARK® product line GFS Item # 2991 mouth bottles, GFS offers a one of the • KF Volumetric Solvent for bottle adapter for its pyridine- most com- Oils (one-component free Karl Fischer product line. prehensive system), GFS Item # 2978 This adapter allows the tech- on the • A CFC-free coulometric nician to “convert” a small- market. vessel solution mouth American-style one- liter bottle into a 45mm mouth European-style bottle.
Packaging Karl Fischer Book • Titration methods andAll GFS Karl Fischer products GFS Chemicals, Inc. offers a equipmentthat were previously available booklet on Karl Fischer mois- • A broad range ofin a one-liter size are also ture measurement. Dr. Alfred applicationsavailable in the one-liter Schilt, retired Professor of • WATERMARK® Pyridine-free45mm European Bottle. This Analytical Chemistry, Karl Fischer reagent optionsbottle readily adapts to Northern Illinois University, WATERMARK KARL FISCHER REAGENTSMettler and Brinkman Karl prepared the first edition of GFS published the booklet forFischer titrator instruments. this concise monograph. The all levels of technicians. ManyThese instruments are pro- newly released second edition reference materials on thisduced in Europe and, as such, has been expanded to subject can be overly lengthyare designed to allow the cus- and profusely detailed. Ourtomer to attach the bottle goal was simple: create a tech-directly to the instrument. nical manual that is easy toThis means the customer no understand and use.longer has to “transfer” thereagent from the small-mouth GFS Chemicals VolumetricAmerican bottle into the larg- and Coulometric Reagentser-mouth European counter- for Karl Fischer Titrationpart. This saves the techni- For a complete listing of thecian time and helps maintain WATERMARK® product line,product integrity by minimiz- please refer to the accompa-ing the product exposure to nying pages. If you shouldair and moisture, which can require a special reagent,affect reagent performance. please don’t hesitate to callPlease Note: The Bottle us. GFS Chemicals is constant-Adapter described previously ly developing new products tocan also meet this need. adapt to the needs of the marketplace. address new methodology In addition, we can provide and recent references, and case quantities or alternative covers the following points of sizes for large volume users. interest: Your feedback to our Karl • Fundamentals of Karl Fischer Product Line Manager Fischer methodologies is always welcome. • Karl Fischer reagent types and preparations • Standardization • Stability and Storage • Safety
WATERMARK KARL FISCHER INDEX ITEM # DESCRIPTION PAGE # 1625 KF BOTTLE ADAPTER 385 1615 KF BUFFER SOLUTION 385 1612 KF COULOMETRIC VESSEL SOLUTION, PYRIDINE-FREE 385 1613 KF COULOMETRIC GENERATOR SOLUTION 385 2321 KF COULOMETRIC GENERATOR SOLUTION, UNIVERSAL 385 1611 KF COULOMETRIC REAGENT PACKAGE 385 2319 KF COULOMETRIC REAGENT PACKAGE II 386WATERMARK KARL FISCHER REAGENTS 1619 KF COULOMETRIC VESSEL SOLUTION, FOR KETONES AND ALDEHYDES 386 1863 KF COULOMETRIC GENERATOR SOLUTION, FOR KETONES AND ALDEHYDES 386 1671 KF COULOMETRIC VESSEL SOLUTION, DIAPHRAGMLESS, CHLOROFORM-FREE 386 1614 KF COULOMETRIC NEUTRALIZING SOLUTION 386 1622 KF COULOMETRIC VESSEL SOLUTION, PYRIDINE-BASED 386 1623 KF COULOMETRIC GENERATOR SOLUTION, PYRIDINE-BASED 386 5202 KF COULOMETRIC VESSEL SOLUTION, for OILS 386 1621 KF DILUENT 387 1600 KF REAGENT, PYRIDINE-FREE SINGLE SOLUTION, 5 mg/ml 387 1601 KF REAGENT, PYRIDINE-FREE SINGLE SOLUTION, 2 mg/ml 387 1620 KF REAGENT, 5 mg/ml, STABILIZED, PYRIDINE-BASED 387 2994 KF SOLVENT, for ALDEHYDES AND KETONES 387 1608 KF SOLVENT, METHANOL-FREE 387 1609 KF SOLVENT, METHANOL-FREE 388 2978 KF SOLVENT FOR OILS, for ONE-COMPONENT SYSTEM 388 2991 KF SOLVENT FOR OILS, for TWO-COMPONENT SYSTEM 388 1610 KF SOLVENT, GENERAL PURPOSE 388 3569 KF SOLVENT, METHYL ALCOHOL, ANHYDROUS 388 1604 KF TITRANT, STABLE, 5 mg/ml, NON-HYGROSCOPIC 388 1603 KF TITRANT, STABLE, 2 mg/ml, NON-HYGROSCOPIC 388 1602 KF TITRANT, STABLE, 1 mg/ml, NON-HYGROSCOPIC 389 1970 KF TITRANT, STABLE, 0.5 mg/ml, NON-HYGROSCOPIC 389 1616 KF TITRANT, APPROXIMATELY 5 mg/ml 389 501 KF TITRATION BOOK, 2nd EDITION 389 2311 KF WATER STANDARD, 0.05 mg/g (50 ppm) 389 2301 KF WATER STANDARD, 0.10 mg/g 389 3493 KF WATER STANDARD, 0.50 mg/g 389 2302 KF WATER STANDARD, 1.0 mg/g 389 2304 KF WATER STANDARD, 5.0 mg/g 389 2303 KF WATER STANDARD, 10.0 mg/g 389 2196 KF WATER STANDARD, 0.10 mg/ml 390 1618 KF WATER STANDARD, 1.0 mg/ml 390 1617 KF WATER STANDARD, 5.0 mg/ml 390 2385 POTASSIUM CITRATE, KF WATER STANDARD 499 805 SODIUM TARTRATE, DIHYDRATE, REAGENT (ACS) 570 WE HONOR
Sodium Biphenyl, such as toluene or ether. (see www.gfschemicals.com for lit- when added to the sample. Diminished strength can be the Problem- erature references) compensated for by increas- Solving Reagent ing the amount of reagent Reagent Characteristics used. GFS Organic Halogen Reagent is a viscous, dark blue solu- GFS schedules the productionStatement of the Problem of OHR (Organic Halogen tion of sodium biphenyl com-Quantitative isolation of Reagent) according to antici- plex in diethylene glycolorganically bonded halide as a pated customer use; we make diethyl ether (ethyl diglyme).prerequisite for classical special effort to provide sin- The product has a limited ORGANIC HALOGEN REAGENTpotentiometric determination gle-lot shipments of larger shelf life, losing strength dur-requires extraction of the orders whenever possible. ing storage at a rate of abouthalide from an organic medi- The reagent should be stored 3-10% per month. Packagesum into a water-soluble ionic in a cool place but not refrig- are marked with a projectedform. The GFS Organic erated. Cold storage, which expiration date, although theHalogen Reagent (Item# 5005) may include shipping during reagent may be used as longdoes this effectively and rap- winter months, can result in as it continues to give a darkidly for samples that can be partial crystallization of the blue, black, or green colordissolved in an inert solvent, reagent that can then adhere to the surface of the plastic bottles in which it is pack- aged. Usually this condition can be detected by careful observation and solid materi- als often can be re-dissolved by carefully shaking the bottle that has been warmed to room temperature or slightly above. Instruction on the use and disposal of the reagent accompanies each package shipped.
Typical Procedure Advantages Packaging and Shipping Measure sample into a clean, Rapid – analysis can usually The proper DOT shipping dry separatory funnel. be made in 30 minutes or less. name: Combustible liquid, Dissolve solid or small sam- Safe/Convenient – Avoids haz- n.o.s.; normal shipment is via ples in a halogen-free, anhy- ard and bother of preparing common carrier ground, air drous inert solvent such as sodium biphenyl in the labo- shipments possible upon toluene, ethyl diglyme, or ratory. No need for combus- request. Package units consist THF. Empty one vial of OHR tion apparatus or pressure of 20 x 15ml plastic vials per into the funnel, stopper, and vessels. box. Teflon liners are not to mix. Retention of the dark Versatile – applicable to a be used in the storage or blue, black or green color wide range of organic materi- packaging of OHR. The entireORGANIC HALOGEN REAGENT indicates sufficient active als: pesticides, hydrocarbons, contents of a vial should be reagent is present. polymers, medicinals, sol- used in any analytical proce- If the color quickly fades, add vents, naphtha and petrol, dure in order to minimize additional OHR. After two etc. Works with solids, liquids, deterioration of the product minutes, extract with water or and gases. by exposure to air and dilute nitric acid. The extract- Low Blanks – engineered for moisture. ed halides, completely con- the production of low-halogen verted to ionic forms, can content OHR. be determined by convention- Economical – saves time and al analytical methods. eliminates the need for extra- neous equipment. Wide-range – accommodates all halides, including fluoride, microgram traces or macro quantities. GFS Reagents for OHR Analysis Item# SKU Description Package Unit Comment 5005 54101 OHR (Sodium Biphenyl Solution) 20 x 15 ml Multi-case discounts available 2347 74991 Toluene (halogen 0.1 ppm max) 1L Also available:6x1L, 4L, 4x4L 2348 72961 Tetrahydrofuran (halogen 0.1 ppm max) 1L Also available:6x1L, 4L, 4x4L 2346 33781 Ethyl Diglyme (halogen 0.1 ppm max) 1L Also available:6x1L, 4L, 4x4L 2349 29991 Colorimetric Chloride reagent set consists of: Ferric Nitrate Sol’n 20% Fe(NO3)3 500 ml Mercuric Thiocyanate in CH3OH Hg(SCN)2 500 ml Save 10% when you buy the set! Chloride Standard, 1000 ppm Chloride 100 ml
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