The article contains sections titled: 1. Introduction 2. Alkyl Hydroperoxides 2.1. Properties 2.2. Production 2.3. Uses 3. Dialkyl Peroxides 3.1. Properties 3.2. Production 3.3. Uses 4. Peroxycarboxylic Acids 4.1. Properties 4.2. Production 4.2.1. Peroxycarboxylic Acids from Carboxylic Acids and Hydrogen Peroxide 4.2.2. Peroxycarboxylic Acids from Carboxylic Anhydrides and Hydrogen Peroxide 4.2.3. Peroxycarboxylic Acids from Carboxylic Acid Chlorides and Hydrogen Peroxide 4.2.4. Peroxycarboxylic Acids by Autoxidation of Aldehydes 4.3. Uses 5. Diacyl Peroxides 5.1. Properties 5.2. Production 5.3. Uses 6. Peroxycarboxylic Esters 6.1. Properties 6.2. Production 6.3. Uses 7. α‐Oxyperoxides 7.1. Properties 7.2. Production 7.3. Uses 8. α‐Aminoperoxides 8.1. Properties 8.2. Production 8.3. Uses 9. Safety Measures 9.1. Hazards 9.2. Transportation and Storage 9.3. Handling 10. Toxicology

The article contains sections titled: 1. Organic Thiocyanates 1.1. Introduction 1.2. Physical Properties 1.3. Chemical Properties 1.4. Production 1.5. Use and Commercial Names 1.6. Toxicology 2. Organic Isothiocyanates 2.1. Introduction 2.2. Physical Properties 2.3. Chemical Properties 2.4. Production 2.5. Quality Specifications and Analysis 2.6. Storage and Transport 2.7. Commercial Names 2.8. Uses 2.8.1. Methyl Isothiocyanate 2.8.2. Other Organic Isothiocyanates 2.9. Toxicology and Industrial Hygiene 2.10. Safety Measures and Processing Advice 2.11. Ecological Aspects

The method of measuring enzyme deactivation by monitoring necessary addition of fresh enzyme to keep a constant degree of conversion in a CSTR at constant [E] x tau, the product of concentration of active enzyme [E] and residence time tau, was successfully applied to acylase I from porcine kidney and Aspergillus oryzae fungus. Fungal enzyme was found to be more stable than kidney enzyme. Activation by both Co2+ and Zn2+ ions also yielded increased operational enzyme stability: Co2+ and Zn2+ are better stabilizers than activators. Mg2+ and Ca2+ are found to be neither activators nor stabilizers. Fungal acylase partially deactivated by exposition to a metal-free medium in the CSTR was reactivated by addition of Zn2+, demonstrating that loss of Zn2+ from the enzyme molecule is mainly responsible for deactivation in a continuous reactor.

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