Table 12.2 Common drying agents Acidity Hydrated Сарасity? Completenessb Rate Use Magnesium sulfate Neutral MgSO4 ·7H,O High Medium Rapid General Sodium sulfate Neutral High General Na,SO, 7H,O Na,SO, 10H,0 CaCl, 2H,O CaCI,6H,O CaSO, %H,O CaSO, 2H,O K,CO;-1½H,O K,CO, 2H,0 Low Medium High Hydrocarbons Halides Calcium chloride Neutral Low Rapid Calcium sulfate Neutral Low High Rapid General (Drierite) Potassium Basic Medium Medium Medium Amines, esters, bases, ketones carbonate Potassium Basic Rapid Amines only hydroxide Molecular sieves Neutral High Extremely high General (3 or 4 Å) aAmount of water removed per given weight of drying agent. ÞRefers to amount of H,O still in solution at equilibrium with drying agent. "Refers to rate of action (drying).

Table 12.2 Common drying agents Acidity Hydrated Сарасity? Completenessb Rate Use Magnesium sulfate Neutral MgSO4 ·7H,O High Medium Rapid General Sodium sulfate Neutral High General Na,SO, 7H,O Na,SO, 10H,0 CaCl, 2H,O CaCI,6H,O CaSO, %H,O CaSO, 2H,O K,CO;-1½H,O K,CO, 2H,0 Low Medium High Hydrocarbons Halides Calcium chloride Neutral Low Rapid Calcium sulfate Neutral Low High Rapid General (Drierite) Potassium Basic Medium Medium Medium Amines, esters, bases, ketones carbonate Potassium Basic Rapid Amines only hydroxide Molecular sieves Neutral High Extremely high General (3 or 4 Å) aAmount of water removed per given weight of drying agent. ÞRefers to amount of H,O still in solution at equilibrium with drying agent. "Refers to rate of action (drying).

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.11QAP

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