For all EPA 180.1 turbidimeters. TEST Turbidity 0.1 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

MnO₂ CAS#: 1313-13-9 F.W.: 86.94

Kit contains Mehlich III Stock Solution A and Mehlich III Concentrate B. Mix the two solutions with deionized or reverse osmosis water and dilute to the specified volume with water.

H₂SO₄ CAS#: 7664-93-9 F.W.: 98.09 NFPA#: 1-0-0 Specific Gravity: 1.000 0.01 mol/L

Box of 100 sticks, 6 x 85 mm with color scale. Graduated in half units from pH 4.5 - 10.0.

FeSO₄•7H₂O

CH₃CN CAS#: 75-05-8 F.W.: 41.05 Suitable for LC-MS

Specially dried methyl alcohol for use with KF Reagents 1600, 1601 and 1620. For general purpose. Not for aldehydes and ketones.

Ca(OH)₂ CAS#: 1305-62-0 F.W.: 74.09

The GFS Chemicals 1-amino-2-naphthol-4-sulfonic acid comes in a light yellow liquid form with an unpleasant odor. The 1-amino-2-naphthol-4-sulfonic acid is ideal for many purposes in professional, scientific and technical fields. Application: For Professional, Scientific and Technical Activities:…

H₂SO₄ CAS#: 7664-93-9 F.W.: 98.09

Co(OH)₂ CAS#: 21041-93-0 F.W.: 92.95

For checking calibration of coulometric KF equipment. Water in xylene.

Fluoride concentration 10.00 +/- 0.05 ppm Color-coded Orange

The pH of a sample is an indication of its acidity or alkalinity and pH determination is one of the most commonly conducted laboratory measurements. The term pH is defined as the negative logarithm (base 10) of the Hydrogen ion concentration (or, more accurately, Activity) expressed in molarity.…

HgCl₂ CAS#: 7487-94-7 F.W.: 271.50 NFPA#: 4-0-1

Na₂SO₃ CAS#: 7757-83-7 F.W.: 126.04 0 mg/L dissolved oxygen

AgF CAS#: 7775-41-9 F.W.: 126.87

NH₄Cr(SCN)₄(NH₃)₂•H₂O CAS#: 13573-16-5 F.W.: 354.42 NFPA#:2-0-0 Descriptions: Ammonium Tetra(thiocyanato)diamminechromate (III), Monohydrate

C₆H₁₂ CAS#: 110-82-7 F.W.: 84.16 Also meets ACS specifications.

Yb(C₅H₇O₂)₃•XH₂O CAS#: 14284-98-1 F.W.: 470.36 (ANHYD.)

Matrix: 5% nitric acid with trace tartaric acid. Ag 100 ug/ml Al 100 ug/ml As 100 ug/ml Ba 100 ug/ml Be 100 ug/ml Bi 100 ug/ml Ca 1000 ug/ml Cd 100 ug/ml Cr

H₂O₂ CAS#: 7722-84-1 F.W.: 34.02 Retest concentration regularly.

Dibasic

[(C₆H₅)₃P]₂PdCl₂

For volumetric or coulometric use. For standardization of titrants or titrators. Water Content 2.00 +/- 0.05 mg/mL NIST Traceable Specific Gravity approx. 0.86

pH (@ 25°C) 1.00 +/- 0.06 NIST Traceable

ACS Reagent Grade, Pentahydrate

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

Made from potassium chloride. Conductivity 100,000 +/- 1,000 uS/cm

ACS Reagent Grade, Hexahydrate

Nitric Acid HNO3, is a highly corrosive mineral acid. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available nitric acid has a concentration of 68% in water and is mostly used to produce…