Drying Agent	Regenerated / Temp in C to Constant Weight	Applicable For	Not Applicable For	Residual Water: mg of Water Vapor per Liter of Dried Air	Grams of Water Removed per Gram of Desiccant
Aluminum	no	Alcohols
Aluminum oxide	yes/650** **aluminum oxide which has been used to remove peroxides must not be regenerated	Hydrocarbons, ethers and other solvents	Compounds which contain epoxide, carbonyl or thio groups, carbon disulfide	0.003	0.2
Calcium	no	Alcohols
Calcium chloride	yes / 250	Saturated, olefinic and aromatic hydrocarbons, alkyl halides, esters, many esters	Ammonia, amines, alcohols, aldehydes, phenols, some esters, ketones	0.14-0.25	0.15-0.30
Calcium hydride	no	Gas drying, organic solvents, also ketones, esters	Compounds with active hydrogen		0.85
Calcium oxide	yes / 1000	Ammonia, amines, alcohols, nitrous oxide	Acids, acid derivatives, aldehydes, ketones	0.2	0.3
Calcium sulfate	yes / 190-230	Universal applications		0.07	0.07
Magnesium	no	Alcohols
Magnesium oxide	yes / 800	Basic liquids, hydrocarbons, alcohols	Acidic compounds	0.008	0.45
Magnesium perchlorate	yes / 240 @ 0.1 mbar	Inert gases, air, ammonia	Organic substances (explosion hazard)	0.0005	0.24
Magnesium sulfate	yes / first to 200 then red heat	Almost all compounds including acids, acid derivatives, aldehydes and ketones		1.0	0.15-0.75
Molecular sieves	yes / 300-350	The application is dependent on the pore diameter, wide application for gases and liquids		0.001	ó0.2
Potassium carbonate	yes / higher than 100	Basic solvents (e.g. ammonia, amines), nitriles, chlorinated hydrocarbons, acetone	Acids		0.16
Potassium hydroxide	no	Basic liquids (e.g. amines)	Acids, esters, amides, phenols	0.002
Sicacide Sulfuric acid concentrated	no	Inert neutral and acidic gases and in desiccators	Unsaturated and other organic compounds, hydrogen sulfide, hydrogen iodide	0.003
Sicapent Phosphorus pentoxide	no	Gases, neutral and acidic saturated aliphatic and aromatic hydrocarbons, acetylene, anhydrides, nitriles, alkyl and aryl halides, carbon disulfide and in desiccators	Alcohols, amines, acids ketones, ethers, hydrogen chloride, hydrogen fluoride	max. 000025
Silica gel	yes / 150-250	Gas drying, wide use for organic liquids	Hydrogen fluoride	0.002	0.2
Sodium	no	Ethers, saturated aliphatic and aromatic hydrocarbons, tertiary amines	Acids, acid derivatives, alcohols, aldehydes, ketones
Sodium hydroxide	no	Basic liquids, e.g. amines	Acids, acid derivatives, phenols
Sodium oxide	no	Ethers, amines, nitriles, amides, alcohols	Acids, acid derivatives, phenols
Sodium sulfate	yes / 150	Alkyl and aryl halides, fatty acids, esters, aldehydes, ketones		12	1.25
Sodium-potassium alloy	no	Ethers, saturated aliphatic and aromatic hydrocarbons	Acids, acid derivatives, alcohols, aldehydes, ketones, alkyl and aryl halides		0.08