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RESEARCH PRODUCT
Thermoanalytical studies on sodium 1,2-naphthoqoinone oximesolfonates
Pirjo VainiotaloI. PitkänenAnto Vainiotalosubject
SodiumInorganic chemistrychemistry.chemical_elementCondensed Matter PhysicsDecompositionNitrogenSodium sulfidechemistry.chemical_compoundchemistrySodium sulfatePhysical and Theoretical ChemistryFourier transform infrared spectroscopyInstrumentationCarbonPyrolysisdescription
Abstract Five sodium 1,2-nitrosonaphtholsulfonatea were prepared or purified and their thermal behaviour studied by TG, DTG and DSC. Pyrolysis MS technique was used to identify evolved gases and FTIR to characterize residuals. The water contents depended on preparation and conservation. The decomposition was analysed in three stages which can be formed by one or more steps. The final product was sodium sulfate in air at 530 °C and the mixture of carbon and sodium sulfide at 950 °C in nitrogen. The structure effects on decomposition is discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-02-01 | Thermochimica Acta |