GFS Chemicals & Solutions

(NH₂OH)₂•H₂SO₄ CAS#: 10039-54-0 F.W.: 164.15 Reagent for reductimetry.

H₃PO₄ CAS#: 7664-38-2 F.W.: 98.00

KMnO₄ CAS#: 7722-64-7 F.W.: 158.04 Colorimetric surrogate standard for 10.0 mg/L free chlorine in DPD colorimetric method.

C₁₀H₁₄O₈N₂Na₂

C₅H₄N-N=N-C₁₀H₆OH CAS#: 85-85-8 F.W.: 249.26

C₅H₁₁OH CAS#: 123-51-3 F.W.: 88.15 Isopentyl Alcohol

For volumetric analysis. Suitable for general purpose or aldehydes and ketones. Specific Gravity: 1.200 NFPA#: 2-2-1

ACS Reagent Grade

ACS Reagent Grade, granular

NaOH CAS#: 1310-73-2 F.W.: 40.00 NFPA#: 2-0-1 Specific Gravity: 1.030

NaAsO₂ CAS#: 7784-46-5 F.W.: 129.91

Mn(C₂H₃O₂)₂•4H₂O

C₁₉H₁₀Br₄O₅S CAS#: 115-39-9 F.W.: 669.97 Organic soluble pH indicator.

C₂₀H₁₀Cl₂O₅ CAS#: 76-54-0 F.W.: 401.20

C₁₅H₁₄N₃O₂Na CAS#: 845-10-3 F.W.: 291.29 Visual transition pH 4.2-6.2, pink-yellow

ACS Reagent Grade

Suitable for ultraviolet spectrophotometry

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

C₅H₁₂ CAS#: 109-66-0 F.W.: 72.15

C₂H₄O₂S CAS#: 68-11-1 F.W.: 92.12 Mercaptoacetic Acid

(C₂H₅)₂O CAS#: 60-29-7 F.W.: 74.12 NFPA#: 2-4-2 Specific Gravity: 0.710 Descriptions: Stablilzed with 2,6-di-tert-butyl-p-cresol 0.0001%

TEST Turbidity (Hach 2100N/AN and IS meters) 20 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

HgO CAS#: 21908-53-2 F.W.: 216.59

Made from potassium chloride. Conductivity 100 +/- 1 uS/cm NIST Traceable