GFS Chemicals Karl Fischer Reagents

Karl Fischer Reagents

GFS Chemicals manufactures the Watermark® Karl Fischer product line. We have one of the largest selections of Karl Fischer reagents in the industry, and the technical expertise to meet your project's needs. From volumetric and coulometric Karl Fischer reagents to certified water standards, we have the products you need in stock and ready to ship. GFS Chemicals also offers both pyridine and pyridine-free solutions. Our Watermark Karl Fischer coulometric reagents have a water capacity over 1000 mg/mL.

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Karl Fischer Product Categories

BrandItem #DescriptionGFS ItemLink
Quveon81014Water Standard 1.0 in MeOH9425 
AquamicronGMW20Standard Water/Methanol9425 
AquamicronAWS02VWater Standard 0.25692 
Hydranal20618Working Medium K5322https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
AqualineAL2300Matrix K5322https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
Hydra-Point6275-68KF Solvent Methanol Free5322https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
AquamicronKTXSolvent KTX5322https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
Quveon43503Solvent KT5322https://gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
Hydranal34868Coulomat Oil5202https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-oils-item-5202-sku-12163
Quveon17145Coulometric AGR-OIL5202https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-oils-item-5202-sku-12163
Hydranal34741Methanol, Dry3569https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methyl-alcohol-anhydrous-cas-67-56-1-item-3569-sku-50362
Aquastar188009CombiMethanol3569https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methyl-alcohol-anhydrous-cas-67-56-1-item-3569-sku-50362
Hydra-Point6290-68Methanol Anhydrous3569https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methyl-alcohol-anhydrous-cas-67-56-1-item-3569-sku-50362
AqualineAL2110Solvent CM2991https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Hydranal37855Solvent CM2991https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Aquastar188016Solvent Oil2991https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Quveon26541Solvent CX2991https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Hydranal37856LipoSolver MH2978https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Aquastar188016Solvent for Oils and Fats2978 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
AquamicronOLXSolvent OLX2978 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Quveon26541Solvent CX2978 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Hydranal34697Solver (Crude Oil)2978 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Aquastar188020CombiSolvent Oils2978 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
AquamicronOL2Solvent OLII2978 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Hydranal34963Potassium Citrate Standard2385https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-potassium-citrate-cas-6100-05-6-item-2385-sku-99572
AqualineK2760Potassium Citrate Standard2385https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-potassium-citrate-cas-6100-05-6-item-2385-sku-99572
AquamicronSWSSolid Water Standard2385https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-potassium-citrate-cas-6100-05-6-item-2385-sku-99572
Hydranal34841Coulomat CG-K2321https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
Aquastar1697C-1Coulomat C2321 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
Hydra-Point6286-00Karl Fischer Coulometric Generator Solution (Universal Type)2321 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
AquamicronCXUAquamicron CXU2321 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
Hydranal34813Water Standard 52304https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-g-item-2304-sku-98992
Hydranal34849Water Standard 102303https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
Aquastar188052Water Standard 1.0%2303https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
AquamicronAWS100VWater Standard 102303https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
Quveon81037Water Standard 10.02303https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
Hydranal34828Water Standard 1.02302https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
Aquastar188051Water Standard 0.1%2302https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
AquamicronAWS10VWater Standard 1.02302https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
Quveon81024Water Standard 1.02302https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
Hydranal34847Water Standard 0.12301https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
Aquastar188050Water Standard 0.01%2301https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
AquamicronAWS01VWater Standard 0.12301https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
Quveon81014Water Standard 0.12301https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
Hydranal37864Imidazole1973https://www.gfschemicals.com/Product?seoUrl=imidazole-reagent-acs-cas-288-32-4-item-1973-sku-44953
Aquastar13709Imidazole1973https://www.gfschemicals.com/Product?seoUrl=imidazole-reagent-acs-cas-288-32-4-item-1973-sku-44953
Hydranal34816Composite 5K1893https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-single-solution-non-haz-item-1893-sku-17302
Aquastar188006CombiTitrant 5K1893https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-single-solution-non-haz-item-1893-sku-17302
AqualineAL-2720-80Water Standard 101892https://www.gfschemicals.com/Product?seoUrl=kf-water-std-10-mg-ml-item-1892-sku-99888
AquamicronFLSFLS1889https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Hydranal34739AG-Oven1889https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Hydra-Point6287-02KF Coulometric Oven Reagent1889https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Quveon18411Coulometric AGR-Oven1889https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Hydranal37817Methanol Rapid1885https://www.gfschemicals.com/Product?seoUrl=methanol-prime-watermark-karl-fischer-solvent-item-1885-sku-25992
Quveon24275Methanol Sharp1885https://www.gfschemicals.com/Product?seoUrl=methanol-prime-watermark-karl-fischer-solvent-item-1885-sku-25992
AqualineAL1900Complete 11884https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Hydranal34827Composite 11884https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Aquastar188001CombiTitrant 11884https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Quveon23367Composit 1T1884https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Hydranal34836Coulomat AG1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Hydranal34810Coulomat AD1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
AquamicronAXMIAXI1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Aquastar188079Anolyte1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Aquastar109255CombiCoulomat Frit1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Aquastar109257CombiCoulomat Fritless1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
AqualineAL2520500Electrolyte AG1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Hydra-Point6280-02Karl Fischer Coulometric Vessel Solution (Pyridine-Free)1671 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Quveon11008Coulometric AGR1671https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
AqualineSK5SK51621https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-diluent-item-1621-sku-99913
AquamicronGMLSolvent ML1621https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-diluent-item-1621-sku-99913
AqualineSK3SK31620 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-stabilized-pyridine-based-item-1620-sku-99904
AquamicronGKS100MTitrant SS1620https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-stabilized-pyridine-based-item-1620-sku-99904
Hydranal34820Coulomat AK1619 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
AquamicronAKXAKX1619 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
AquastarAX1697ECoulomat AK1619 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
Hydra-Point6283-01Coulometric Vessel Solution for Aldehydes and Ketones (Methanol-Free)1619https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
AqualineAL2710-40Water Standard 11618https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-ml-item-1618-sku-99733
Aquastar109259Water Std. 5 mg/mL1617https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-ml-item-1617-sku-99753
AquamicronGCHPGCHP Check Solution P1617https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-ml-item-1617-sku-99753
AqualineAL2730-500Water Standard 51617https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-ml-item-1617-sku-99753
Hydranal34801Titrant 51616https://www.gfschemicals.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Aquastar188010Titrant 51616https://www.gfschemicals.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Hydra-Point6274-02KF Titrant 5 mg/mL1616https://www.gfschemicals.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Quveon22251Titrant 5T1616https://www.gfschemicals.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
AqualineAL22001Titrant 51616https://www.gfschemicals.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Hydranal34804Buffer1615 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Aquastar188035Buffer1615 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
AqualineAL2350Buffer1615 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Hydra-Point6282-02Buffer Solution1615 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Quveon20756Buffer Acid1615https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Hydranal34840Coulomat CG1613https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
Quveon13060Coulometric CGR1613https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
AqualineAL2560Electrolyte CG1613https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
Hydra-Point6281-00Karl Fischer Coulometric Generator Solution (Pyridine-Free)1613https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
Hydranal34807Coulomat A1612 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AquastarAX1697ACoulomat A1612https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
Hydra-Point6280-02Karl Fischer Coulometric Vessel Solution (Pyridine-Free)1612 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AquamicronXAMAAX1612 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AquamicronXAMA01AX011612 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
Quveon15572Coulometric AGR-C1612 https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AqualineAL2500Electrolyte A1612https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AqualineAL2510Electrolyte AD1612https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
Hydranal34800Solvent1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
Aquastar188009CombiMethanol1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
AquamicronGEXSolvent GEX1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
Quveon21114Solvent1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
Hydranal34800Solvent1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
Aquastar188015CombiMethanol Solvent1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
Hydra-Point6276-68General Purpose Solvent1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
AqualineAL21001Solvent1610https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-general-purpose-item-1610-sku-99595
Hydranal34738Keto Solver1609https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methanol-free-item-1609-sku-99719
Aquastar188007CombiSolvent Keto1609https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methanol-free-item-1609-sku-99719
Hydra-Point6275-68KF Solvent Methanol Free1609https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methanol-free-item-1609-sku-99719
Hydranal34817Working Medium K1609https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methanol-free-item-1609-sku-99719
Hydra-Point6275-68KF Solvent Methanol Free1609https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methanol-free-item-1609-sku-99719
Quveon43503Solvent KT1609https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-solvent-methanol-free-item-1609-sku-99719
Hydranal34843Coulomat AG-H1607https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-cfc-free-item-1607-sku-99682
Hydra-Point6284-01Karl Fischer Coulometric Vessel Solution (CFC-Free)1607https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-cfc-free-item-1607-sku-99682
Quveon16138AHR1607https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-cfc-free-item-1607-sku-99682
AqualineK-2530Electrolyte AG-H1607https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-cfc-free-item-1607-sku-99682
AquamicronSAMAAS1607https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-cfc-free-item-1607-sku-99682
Hydranal34811Titrant 21603https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-titrant-stable-2-mg-ml-non-hygroscopic-item-1603-sku-99657
Aquastar188011Titrant 21603https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-titrant-stable-2-mg-ml-non-hygroscopic-item-1603-sku-99657
Quveon25299Titrant 2T1603https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-titrant-stable-2-mg-ml-non-hygroscopic-item-1603-sku-99657
Hydra-Point6273-02KF Titrant 2 mg/mL1603https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-titrant-stable-2-mg-ml-non-hygroscopic-item-1603-sku-99657
Hydranal34806Composite 21601https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-2-mg-ml-item-1601-sku-99620
AqualineAL1950Complete 21601https://www.gfschemicals.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-2-mg-ml-item-1601-sku-99620
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