VWR International BDH1103-4LP
BDH Acetonitrile BDH 4L Poly BDH Acetonitrile Is Suitable For General Laboratory Use Including Cytology, Histology, Organic Synthesis, Cleaning, Prep Scale Synthesis. Packaged In 4-Liter Plastic Bottles, With 4 Bottles Per Case. ACS Certified.

VWR International BDH1101-4LP
BDH Acetone BDH 4L Poly BDH Acetone Is Suitable For General Laboratory Use Including Cytology, Histology, Organic Synthesis, Cleaning, Prep Scale Synthesis. Packaged In 4-Liter Plastic Bottles, With 4 Bottles Per Case. ACS Certified.

AVANTOR PERFORMANCE MATERIALS 3384-12
Ammonium Chloride Ammonium muriate. CAS RN 12125-02-9. Formula Weight 53.49. Granular, AR*, ACS, 99.5% min. Actual signed Certificate of Lot Analysis provided on label. Subject to postal/shipping regulations. 500g. Exact Match: MK338412

Stabilizer Solution 10ML PK6

CHEMetrics Part No. K-1510
Low-level ammonia nitrogen may be naturally present in water as a result of the biological decay of plant and animal matter. Higher concentrations in surface waters can indicate contamination from waste treatment facilities, raw sewage, industrial effluents (particularly from petroleum refineries), or fertilizer runoff. Excessive ammonia concentrations are toxic to aquatic life. The Direct Nesslerization Method Reference: ASTM D 1426-08, Ammonia Nitrogen in Water, Test Method A. APHA Standard Methods, 18th ed., Method 4500-NH3 C - 1988. The test kits employing the well-established Nessler reagent* to determine ammonia concentrations are applicable to drinking water, clean surface water, good-quality nitrified wastewater effluent, and seawater. In some waters, calcium and magnesium concentrations can cause cloudiness of the reagent. Adding a few drops of stabilizer solution (Rochelle Salt) will prevent this cloudiness. References recommend distilling samples prior to analysis. Results are expressed as ppm (mg/L) ammonia-nitrogen, NH₃-N. Shelf-life: although the Nessler reagent is stable, its high alkali content attacks the glass ampoule. The resulting precipitate interferes with color comparison. We recommend stocking quantities of CHEMets® and VACUettes® ampoules that will be used within five months. A two-month supply of Vacu-vials ampoules is suggested. Refrigeration will dramatically extend the shelf-life of these products. Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Stabilizer Solutions, 25 mL sample cup, 1.0 mL syringe, and instructions.

VWR International BDH1101-19L
BDH Acetone 19L Can ACS Grade, BDH Brand.

VWR International BDH3094-2.5LG
BDH Acetic Acid, glacial ACS/USP/FCC. Packaged in glass bottle. CAS Number: 64-19-7. Size: 2.5L.

4lbs