GFS Chemicals Karl Fischer Reagents

Karl Fischer Reagents

GFS Chemicals manufactures the Watermark® Karl Fischer product line. 我们有一个最大的选择卡尔费舍尔试剂在行业, and the technical expertise to meet your project's needs. 从体积和库仑卡尔费希尔试剂认证的水标准, we have the products you need in stock and ready to ship. GFS Chemicals also offers both pyridine and pyridine-free solutions. 我们的水印卡尔费希尔库伦试剂的水容量超过1000毫克/毫升.

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Karl Fischer Product Categories

体积滴定法通常用于100 ppm至100%含水量范围内的样品, although sample analysis down 10 ppm water is possible. 单组分卡尔菲舍尔试剂是最受欢迎的,因为它们是最便宜的, and don't always require a special solvent. In one-component Karl Fischer Titration, 已知浓度的滴定剂在容器溶剂中与样品反应, ultimately consuming the water in the sample.

滴定剂含有KF反应所需的所有成分:碘, base, sulfur dioxide, and a solvent medium. 容器溶剂的选择要符合样品的溶解特性. 通过测量加入滴定剂的体积,可以计算出样品中的水量. The Watermark product line includes reagents with titer values of 5 mg/mL, 2 mg/mL, and 1 mg/mL, covering an array of applications.

With a methanol-free and pyridine-free formula, Watermark volumetric titrants are suitable for all KF titration samples, even those with aldehydes or ketones.

Not sure which to choose?

Choose a
One-Component System if your lab is on a budget, or performs frequent KF titrations. All reactants are in the titrant bottle, 我们的水印非吸湿滴定剂的设计非常稳定,保证两年的保质期.

Choose a
Two-Component System 如果您需要更高的准确度,更快的滴定,或需要标准化频率更低. The lowest strength available is 0.5毫克/毫升,是专为最少的样品,或非常低的水含量的应用.

库仑滴定法通常选用含水量小于1%的方法, although samples with water content up to 5% are possible. Anolyte and catholyte choices are based on the sample matrix, which in turn influences generator choice.

水印试剂为卡尔费歇尔滴定提供了最佳的价值和性能. With extended shelf life, rapid moisture determinations, and a stable end-point, it is evident that Watermark outperforms the competition. Watermark, by GFS Chemicals, is specially formulated to provide the ultimate in analytical performance.

 

卡尔费歇尔滴定剂的标准化是必要的,以确定其水当量. GFS Chemicals manufactures a broad range of reference materials, including primary standards in our Columbus, Ohio facilities.

Water standards 每盒10个一次性安瓿,并有5年的保质期. 水印水标准不含甲醇,可用于所有应用. All standards come with a Certificate of Analysis (COfA), are scrupulously tested in our ISO/IEC 17025 accredited management system, and are NIST traceable.

Solid standards, including sodium tartrate and potassium citrate, are also available.

The Karl Fischer reaction is pH dependent. 大多数的水印滴定剂和溶剂被缓冲,以抵消样品,引起小的pH值变化. If the sample causes the pH to change outside the required 5 to 7.5 range, side reactions and slow kinetics are likely to occur.

To counter the effects of samples with extremely high or low pH values, add a buffering material to adjust the pH back to the optimal pH range.

GFS化学专业生产无水高氯酸镁,它是空气和气体的优良干燥剂. KF titration systems require protection from atmospheric moisture. We offer many options including molecular sieves, indicating silica beads, drierite and calcium-based desiccants.

比较一下我们的价格,看看我们是否能比你现在的供货商省钱.

BrandItem #DescriptionGFS ItemLink
Quveon81014Water Standard 1.0 in MeOH9425 
AquamicronGMW20Standard Water/Methanol9425 
AquamicronAWS02VWater Standard 0.25692 
Hydranal20618Working Medium K5322http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
AqualineAL2300Matrix K5322http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
Hydra-Point6275-68KF Solvent Methanol Free5322http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
AquamicronKTXSolvent KTX5322http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
Quveon43503Solvent KT5322http://ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-aldehydes-and-ketones-item-5322-sku-15175
Hydranal34868Coulomat Oil5202http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-oils-item-5202-sku-12163
Quveon17145Coulometric AGR-OIL5202http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-oils-item-5202-sku-12163
Hydranal34741Methanol, Dry3569http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-methyl-alcohol-anhydrous-cas-67-56-1-item-3569-sku-50362
Aquastar188009CombiMethanol3569http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-methyl-alcohol-anhydrous-cas-67-56-1-item-3569-sku-50362
Hydra-Point6290-68Methanol Anhydrous3569http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-methyl-alcohol-anhydrous-cas-67-56-1-item-3569-sku-50362
AqualineAL2110Solvent CM2991http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Hydranal37855Solvent CM2991http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Aquastar188016Solvent Oil2991http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Quveon26541Solvent CX2991http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-two-component-system-item-2991-sku-28775
Hydranal37856LipoSolver MH2978http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Aquastar188016Solvent for Oils and Fats2978 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
AquamicronOLXSolvent OLX2978 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Quveon26541Solvent CX2978 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Hydranal34697Solver (Crude Oil)2978 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Aquastar188020CombiSolvent Oils2978 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
AquamicronOL2Solvent OLII2978 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-solvent-for-oils-for-one-component-system-item-2978-sku-28742
Hydranal34963Potassium Citrate Standard2385http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-potassium-citrate-cas-6100-05-6-item-2385-sku-99572
AqualineK2760Potassium Citrate Standard2385http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-potassium-citrate-cas-6100-05-6-item-2385-sku-99572
AquamicronSWSSolid Water Standard2385http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-potassium-citrate-cas-6100-05-6-item-2385-sku-99572
Hydranal34841Coulomat CG-K2321http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
Aquastar1697C-1Coulomat C2321 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
Hydra-Point6286-00Karl Fischer Coulometric Generator Solution (Universal Type)2321 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
AquamicronCXUAquamicron CXU2321 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-universal-item-2321-sku-99712
Hydranal34813Water Standard 52304http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-g-item-2304-sku-98992
Hydranal34849Water Standard 102303http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
Aquastar188052Water Standard 1.0%2303http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
AquamicronAWS100VWater Standard 102303http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
Quveon81037Water Standard 10.02303http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-10-0-mg-g-item-2303-sku-99881
Hydranal34828Water Standard 1.02302http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
Aquastar188051Water Standard 0.1%2302http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
AquamicronAWS10VWater Standard 1.02302http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
Quveon81024Water Standard 1.02302http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-g-item-2302-sku-99862
Hydranal34847Water Standard 0.12301http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
Aquastar188050Water Standard 0.01%2301http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
AquamicronAWS01VWater Standard 0.12301http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
Quveon81014Water Standard 0.12301http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-0-10-mg-g-item-2301-sku-99842
Hydranal37864Imidazole1973http://gzpyjv.ahianews.com/Product?seoUrl=imidazole-reagent-acs-cas-288-32-4-item-1973-sku-44953
Aquastar13709Imidazole1973http://gzpyjv.ahianews.com/Product?seoUrl=imidazole-reagent-acs-cas-288-32-4-item-1973-sku-44953
Hydranal34816Composite 5K1893http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-single-solution-non-haz-item-1893-sku-17302
Aquastar188006CombiTitrant 5K1893http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-single-solution-non-haz-item-1893-sku-17302
AqualineAL-2720-80Water Standard 101892http://gzpyjv.ahianews.com/Product?seoUrl=kf-water-std-10-mg-ml-item-1892-sku-99888
AquamicronFLSFLS1889http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Hydranal34739AG-Oven1889http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Hydra-Point6287-02KF Coulometric Oven Reagent1889http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Quveon18411Coulometric AGR-Oven1889http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-oven-item-1889-sku-19184
Hydranal37817Methanol Rapid1885http://gzpyjv.ahianews.com/Product?seoUrl=methanol-prime-watermark-karl-fischer-solvent-item-1885-sku-25992
Quveon24275Methanol Sharp1885http://gzpyjv.ahianews.com/Product?seoUrl=methanol-prime-watermark-karl-fischer-solvent-item-1885-sku-25992
AqualineAL1900Complete 11884http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Hydranal34827Composite 11884http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Aquastar188001CombiTitrant 11884http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Quveon23367Composit 1T1884http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-pyridine-free-single-solution-1-mg-ml-sku-28201
Hydranal34836Coulomat AG1671 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Hydranal34810Coulomat AD1671 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
AquamicronAXMIAXI1671 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Aquastar188079Anolyte1671 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Aquastar109255CombiCoulomat Frit1671 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Aquastar109257CombiCoulomat Fritless1671 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
AqualineAL2520500Electrolyte AG1671 http://gzpyjv.ahianews.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 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
Quveon11008Coulometric AGR1671http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-diaphragmless-chloroform-free-item-1671-sku-99857
AqualineSK5SK51621http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-diluent-item-1621-sku-99913
AquamicronGMLSolvent ML1621http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-diluent-item-1621-sku-99913
AqualineSK3SK31620 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-stabilized-pyridine-based-item-1620-sku-99904
AquamicronGKS100MTitrant SS1620http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-reagent-5-mg-ml-stabilized-pyridine-based-item-1620-sku-99904
Hydranal34820Coulomat AK1619 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
AquamicronAKXAKX1619 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
AquastarAX1697ECoulomat AK1619 http://gzpyjv.ahianews.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)1619http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-for-ketones-and-aldehydes-item-1619-sku-99811
AqualineAL2710-40Water Standard 11618http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-1-0-mg-ml-item-1618-sku-99733
Aquastar109259Water Std. 5 mg/mL1617http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-ml-item-1617-sku-99753
AquamicronGCHPGCHP Check Solution P1617http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-ml-item-1617-sku-99753
AqualineAL2730-500Water Standard 51617http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-water-standard-5-0-mg-ml-item-1617-sku-99753
Hydranal34801Titrant 51616http://gzpyjv.ahianews.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Aquastar188010Titrant 51616http://gzpyjv.ahianews.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Hydra-Point6274-02KF Titrant 5 mg/mL1616http://gzpyjv.ahianews.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Quveon22251Titrant 5T1616http://gzpyjv.ahianews.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
AqualineAL22001Titrant 51616http://gzpyjv.ahianews.com/Product?seoUrl=titrant-5-watermark-karl-fischer-5-mg-ml-in-methanol-item-1616-sku-99827
Hydranal34804Buffer1615 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Aquastar188035Buffer1615 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
AqualineAL2350Buffer1615 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Hydra-Point6282-02Buffer Solution1615 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Quveon20756Buffer Acid1615http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-buffer-solution-item-1615-sku-99803
Hydranal34840Coulomat CG1613http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
Quveon13060Coulometric CGR1613http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
AqualineAL2560Electrolyte CG1613http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
Hydra-Point6281-00Karl Fischer Coulometric Generator Solution (Pyridine-Free)1613http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-generator-solution-pyridine-free-item-1613-sku-99784
Hydranal34807Coulomat A1612 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AquastarAX1697ACoulomat A1612http://gzpyjv.ahianews.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 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AquamicronXAMAAX1612 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AquamicronXAMA01AX011612 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
Quveon15572Coulometric AGR-C1612 http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AqualineAL2500Electrolyte A1612http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
AqualineAL2510Electrolyte AD1612http://gzpyjv.ahianews.com/Product?seoUrl=watermark-karl-fischer-coulometric-vessel-solution-pyridine-free-item-1612-sku-99773
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