Cobalt Hydr oxides

PZC/IEP of Co(OH)2 Obtained from Chloride Electrolyte T Method Instrument 

Properties Impurity level 0.1%, detailed analysis available, structure confirmed by XRD, BET specific surface area 16.8 m7g [1233]. 

1 From Nitrate, Recipe from [1236] CofNOj), solution in 2-propanol was dried at 100°C. It was then calcined for 1 h at 400°C in air, crushed, milled, and calcined again. 

2 Calcination of Nitrate in a Stream of Oxygen at Different Temperatures Properties Samples prepared at temperatures 500 C contain excessive oxygen (up to CO3O4 4) [1235], 

Data points available for sample decomposed at 300°C (only Og), and at 200°C (only Q. 

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Hydr/formyUttion. Swiss chemists recommend rhodium(lII) oxide as catalyst for hydroformylation of olefins. Thus they have prepared cyclohexanecarboxaldchyde (2) in 95% yield from cyclohexene (1). Lower yields were obtained using cobalt catalysts. 

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