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Laboratory Chemicals

GFS Chemicals has been serving chemists since 1928. Founder George Frederick Smith, a practicing analytical chemist, believed in truthful and accurate reporting of specifications and believed in strengthening relationships with customers/partners.  Today GFS Chemicals continues that tradition by providing excellent customer service and continuous process improvement.   GFS Chemicals is a third generation privately held U.S. based chemical manufacturer with more than 85 years serving the worldwide chemical industry. We work with our small and mid-sized customers – DON’T be ignored. We will treat you special and we offer custom services including:
·         Standing purchase orders
·         Special specifications
·         Unique packaging
·         No added hazard fees
·         Competitive freight rates.
GFS Manufactures a wide range of laboratory and research chemicals including but not limited to:
·         Acids – ACS, Trace Metal/Instrument Grade, and Double Distilled Veritas® Acids
·         Analytical Solutions
·         ACS Salts
·         High Purity Salts (Metals Basis) – Batch to Batch Consistency
·         Primary Standards
·         ACS, HPLC, Ultimate Grade Solvents - Consistent Quality, Guaranteed Specifications, Superior Service
·         ChromatographySeparations Media
·         Dyes, Stains and Indicators
·         Special Solutions
·         Full Capabilities to manufacture drums, totes and metric tons of inorganic process chemicals
GFS offers a wide range of Laboratory Reagents to meet your analytical testing needs including detailed certificates of analysis to identify actual purity levels for each lot.
Analytical Solutions
GFS understands that standards and reagents are vital for achieving optimal
performance and compliance using analytical instrumentation. GFS is constantly
improving manufacturing methods and testing capabilities to reduce variability and
improve quality. GFS Manufactures Hundreds of Analytical Solutions and
Normality Solutions. Examples include:
·         Acetic Acid Solution Sodium Hydroxide Solution 50%
·         Barium Chloride Solution Hydrochloric Acid Solutions
·         Disodium EDTA Solutions Sulfuric Acid Solutions
·         Potassium Hydroxide in Alcohol Conductivity Standards
·         Potassium Iodide Ceric Sulfate Solutions
·         Sodium Hydroxide Solutions TISAB II Solution for Fluoride
·         PH Buffers Indicators
·         Silver Nitrate
ACS Salts
GFS Chemicals offers one of the widest arrays of ACS Salts on the market today with in-stock salts in a variety of sizes. As a primary manufacturer, GFS can also manufacture and package these materials in small bottle to larger bulk sizes.
Some of our popular In-stock ACS Reagent Salts include:
·         Potassium Iodide, Reagent
·         Sodium Peroxide
·         Ammonium Chloride, Reagent
·         Calcium Carbonate, Reagent
·         Sodium borohydride, Granular
·         Sodium Sulfate, Granular, ACS
·         Sodium Acetate, Anhydrous
·         Sodium Iodide, Reagent
·         Sodium Hydroxide, Reagent
·         Magnesium Nitrate, Reagent
·         Pot Phosphate, Mono Basic
·         Silver Nitrate
·         Ammonium Persulfate, Reagent
·         Sodium Acetate, Reagent
·         Zinc Nitrate Sodium Oxalate
·         Sodium Chloride, Reagent
·         Potassium Chloride Reagent
·         Barium Chloride, Reagent
·         Ceric Ammonium Nitrate
·         Ammonium Acetate, Reagent
·         Potassium Hydroxide, Reagent
·         Sodium Nitrate, Reagent
·         Magnesium Sulfate, Reagent
High Purity Salts (Metals Basis)
We offer high-purity inorganic salts for sample preparation, for manufacture of AA/ ICP Standards or other applications where total metals impurities need to meet exacting requirements. For accurate results and high performance — detection in the parts-per million to parts per-billion-range — in critical environmental trace element analyses many research and quality control organizations trust GFS Chemicals.
Some of Our Popular High Purity Salts include:
·         Aluminum Oxide Manganese Dioxide
·         Ammonium Molybdate Nickel Oxalate
·         Lead Nitrate Rubidium Chloride
·         Lithium Bromide Silver Sulfate
Primary Standards
Consider GFS primary standards for use in your titrations and standardization solutions. GFS manufactures very pure primary standards that meet NIST standards. Some can be manufactured in large quantities.
Some of Our Popular In-Stock Primary Standards include:
·         Benzoic Acid FEDS
·         Calcium Carbonate Sodium Oxalate
·         Potassium Acid Phthalate (KHP) Sodium Tartrate Dihydrate
·         Sulfamic Acid Sodium Carbonate
·         TRIS Hydroxymethylaminomethane Ceric Ammonium Nitrate
·         Potassium Dichromate Potassium Bi-lodate
·         *Ferrous Ethylenediammonium Sulfate
Spectrophotometric Reference Materials
The American Association for Laboratory Accreditation (A2LA) has accredited GFS Chemicals to ISO/IEC 17025:2005 for the testing of its In-Spec® line of UV/ Vis spectrophotometer standards. A2LA is dedicated to the formal recognition of competent testing and calibration laboratories, inspection bodies, proficiency testing providers, reference material producers and product certification bodies. The In-Spec® product line makes UV/visible spectrophotometer validation accessible and easy for everyone. In-Spec® standards can be used as a quality control check and to verify the operating procedure practiced by laboratory staff. This allows the lab to ensure the data collected by the UV/Vis spectrophotometer is reliable.
The range of non-toxic, NIST traceable materials includes:
·         Photometric accuracy reference standards
·         Wavelength accuracy filters
·         Stray light filters
Watermark Karl Fischer Reagents/Trace Water Analysis
GFS offers one of the largest selections of Karl Fischer formulations on the market and has the internal technical expertise to meet your needs. We have been manufacturing KF reagents in the United States since the 1980’s. Our Watermark brand will help you save money while receiving excellent quality and service. Reagents are freshly manufactured in the U.S. and are available to ship within 24 hours. The line includes reagents for volumetric and coulometric applications, and products are available in pyridine and pyridine-free solutions. GFS Watermark® Karl Fischer Reagents are designed for use with most titrators on the market. Our coulometric reagents have
an extremely high water capacity, in excess of 1000 mg of water/100 ml charge.
·         Watermark® Karl Fischer Reagents Pyridine Free and Pyridine Based Volumetric Reagents
·         One Component and Two Component Reagents for Volumetric determination of water
·         Coulometric Reagents Karl Fischer Solvents
·         Water Standards and Reference Materials
·         Karl Fischer Coulometric Kits
Organic Halogen Reagent (OHR) — Sodium Biphenyl Reagent
GFS Chemicals Organic Halogen Reagent (OHR) is also known as Sodium Biphenyl Reagent. The reactive nature of the sodium biphenyl complex in ethyl diglyme ensures complete extraction of any halide species present in most any organo-halide derivative. This includes pesticides, petrochemicals, aliphatic and aromatic hydrocarbons, mixed
halides and fluro-organics. Extraction of the halide into an aqueous layer allows for easy determination via titration, color reagent or ISE. OHR does this effectively and rapidly for samples that can be dissolved in an inert solvent such as toluene or ether.
·         Rapid — can be completed in 30 minutes or less.
·         Safe — protects against hazards in chemical preparation and handling.
·         Versatile — applicable to a wide range of organic materials.
·         Manufactured regularly CAS # 5137-46-2 — to optimize shelf life.
Solvents — ACS, HPLC, Veritas ® Ultimate Grades
GFS solvents offer exceptional value and superior quality for any lab application. Our customer’s know that we are committed to the highest purity requirements demanded for today’s most discriminating needs  We offer a complete line of solvents for any lab application including:
·         HPLC for Discriminant Instrumentation Needs
·         VERITAS® for critical applications such as residue analysis
·         LC gradient
Features and Benefits:
Ultimate Grade meets or exceeds specifications required by HPLC, GC, GC-MS, LC, LC-MS and UV-Vis instrumentation. DIG (Distilled-In-Glass) Grade specifications satisfy or exceed requirements for EPA methods.
Solvents for your Critical Applications ACS, wider range of critical applications:
·         Acetone
·         Isopropyl Alcohol
·         Acetonitrile
·          Methyl Alcohol/Purge & Trap Methanol
·         Chloroform
·         Methyl Ethyl Ketone MEK
·         Cyclohexane
·         Methyl Tertiary
·         Butyl Ether
·         Dichloromethane
·          N-Pentane
·         Ethyl Acetate
·          Petroleum Ether
·         Ethyl Ether
·          Tetrahydrofuran
·         n-Heptane Toluene
Chromatography — Separations Media
GFS offers several popular silica products, including Macherey-Nagel and W. R. Grace products, and this gives separations scientists a broad base of qualified products, traceable by lot analysis under ISO-certification, which can be enhanced by Diazem technology. Your customized project can be managed from research to commercialization with complete confidence in the consistency of quality of the sorbent of your choice. GFS technical and product support provides a new gateway to problem solving in cutting-edge separations.
GFS also offers a full line of:
·         Veritas® Ultimate HPLC Solvents
·         Bio-Refi ned/Ultra Pure Reagents
·         Royer® Polyethyleneimine (PEI) Anion Exchange Resins/Catalysts
·         Derivatizing Agents
·         Desiccants
Chromatography and Separations Media
·         Alumina Nucleosil®
·         Ambelyte® Royer® Anion Exchange Resins
·         Aluminum Oxide Silica GFS Select™
·         Acarite II® Amberlyst®
·         Activated Carbon Nucleodur®
·         Molecular Sieves
·         Selected Dyes, Stains and Indicators
·         We offer a broad range of superior quality dyes, stains and indicators for numerous
·         applications.
·         Dyes, Stains and Indicators Such as:
·         Calcein
·          Crystal Violet Reagent
·         Methylene Blue
·          Cresol Red
·         Phenol Red
·          Amaranth
·         Rhodamine
·         Aniline Blue
·         Hydroxy Naphthol Blue
·          1,2-Cyclohexanedionedioxime
·         Diphenylamine Reagent
·         Snazox
·         Ferric Ammonium Sulfate
·         4,4’-Dicarboxy-2,2’ Biquinoline
·         Phenanthrolines
·         Phenolphthalein