500 mL, GFS Chemicals
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TPTZ Ferrous Sulfate Solution, 0.00050 Mol/L
GFS ChemicalsReagent solution for the determination of microgram amounts of EDTA, B Kratochvil and M.C. White, Anal. Chem., 37, 111 (1965)
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Digestion Reagent for Kjeldahl Nitrogen
GFS ChemicalsCatalyst for Kjeldahl Nitrogen Test (Standard Methods), replacement for Mercury Sulfate digest solution.
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For volumetric analysis. Suitable for general purpose or aldehydes and ketones. Specific Gravity: 1.200 NFPA#: 2-2-1
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Sodium Hypochlorite Solution, 10-13% Available Chlorine
GFS ChemicalsNaOCl CAS#: 7681-52-9 F.W.: 74.44
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Perchloric Acid Redistilled
GFS ChemicalsHCIO4 F.W.: 100.46 NFPA#: 3-0-1 Specific Gravity: 1.660 DOT: 1/8/I Descriptions: Trace metal grade. Low ppb metal impurities. Note: Results reported at time of bottling in glass. The levels of Al, B, Ca, K, Mg, Mn, Na, and Si will increase over time.
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Concentration (as Cl) 1,000 +/- 10 ug/mL Matrix: KCl, water
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AMCO Clear® Turbidity Standard, 0.6 NTU
GFS ChemicalsFor all EPA 180.1 turbidimeters. TEST Turbidity 0.6 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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37% Hydrochloric Acid, ACS Reagent
GFS ChemicalsHydrochloric acid, also known as muriatic acid, is a strongly acidic solution of the gas hydrogen chloride in water. It is a colorless solution with a distinctive pungent smell. It is a component of the gastric acid in the digestive systems of most animal species, including humans and is classified…
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AMCO Clear® Turbidity Standard, 0.1 NTU
GFS ChemicalsFor all EPA 180.1 turbidimeters. TEST Turbidity 0.1 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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Hydriodic Acid, 47%, ACS Reagent
GFS ChemicalsThe GFS Chemicals hydriodic acid with 47% concentration levels comes in a colorless liquid form with a pungent odor. The hydriodic acid is ideal for many purposes in professional, scientific and technical fields. Application: For Professional, Scientific and Technical Activities, other…
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Conductivity Standard, 50,000 uS/cm
GFS ChemicalsMade from potassium chloride. Conductivity 50,000 +/- 500 uS/cm
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Buffer Solution, pH 10.00 (Color Coded Blue)
GFS ChemicalspH (@ 25°C) 10.00 +/- 0.03 NIST Traceable
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Potassium Chloride, Solution, 4 M
GFS ChemicalsKCl CAS#: 7447-40-7 F.W.: 74.55 For pH electrodes. 4 mol/L
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Dichlorofluorescein Solution, 1% in Reagent Alcohol
GFS ChemicalsC20H10Cl2O5 CAS#: 76-54-0 F.W.: 401.20
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AMCO Clear® Turbidity Standard, 900 NTU
GFS ChemicalsTEST Turbidity 900 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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Ethylenediamine, Anhydrous
GFS ChemicalsThe GFS Chemicals anhydrous 4, 7-ethylenediamine comes in a colorless liquid form with a pungent odor. This ACS reagent is ideal for many purposes in professional, scientific and technical fields. Application: For Professional, Scientific and Technical Activities, other Professional, Scientific…
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Formaldehyde Solution, 37% (ACS)
GFS ChemicalsHCHO CAS#: 50-00-0 F.W.: 30.03 NFPA#: 3-2-2 Descriptions: Contains 10-15% methanol as preservative.
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Veritas® Hydrogen Peroxide, 30%, Low Trace Metals
GFS ChemicalsH2O2 CAS#: 7722-84-1 F.W.: 34.02 Trace metal grade. Low PPB level impurities.
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tert-Butyl Acetate, 98.0%
GFS ChemicalsCH3COOC(CH3)3 CAS#: 540-88-5 F.W.: 116.16 NFPA#: 1-3-0 Specific Gravity: 0.870
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Phosphorus 10,000 ppm ICP Standard Solution
GFS ChemicalsConcentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable
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TEST Turbidity (AQ4500) EPA mode Turbidity (AQ4500) IR Ratio mode Thermo Electron AQ4500 serial number Instrument calibration date Formazin Concentrate (4000 NTU) lot number Formazin chec
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TEST Turbidity (Hach 2100N/AN and IS meters) 0.1 NTU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material