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SPADNS solution by dissolving 0.10 g of sample in 50 mL of water. Then make zirconyl acid reagent solution by dissolving 25 mg of zirconyl chloride octahydrate in 25 mL of water, add 70 mL of hydrochloric acid, and dilute to 100 mL with water.
S 2487 (OTTO) SPADNS, GR Cas no 23647-14-5 - used as a reagent for drinking and wastewater analysis using Hach Method 8029, Fluoride, SPADNS Method.
This monograph for SPADNS provides, in addition to common physical constants, a general description including typical appearance, applications, and aqueous solubility. The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Clarity of Solution and Sensitivity to Fluoride.
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