Aten’s sulfur

Sulfur can form rings and chains of various shapes and sizes. In addition to the crown-shaped cyclo-Sg, nine other types of rings can be prepared the first of these, cyclohexasulfur, also called Engel s or Aten s sulfur, or rhombohedral sulfur, Sp, was first described by Engel in 1891 (28). The other eight types of rings were all discovered during the last 10 years by Schmidt and his co-workers (87,88) notably Wilhelm (125). 

Acidithiobacillus ferrooxidans 167, 177 Acidoid sol 161, 163 Agriculture 184-185 Allochromatium vinosum 172, 174-176 Allotropes 1, 3-4, 12, 17, 19, 47, 54-57 -, high-pressure 59 Aqueous sulfur sol 154 Assimilatory reduction 169 Aten s sulfur 17... 

Fibrous sulfur, described in Section II, is prepared by quenching liquid sulfur. Aten and Erametsa s 7r-sulfur is obtained from the melt at... 

Further evidence of specific chemical effects in the hot zone appears in the work of Aten, who investigated the distribution of oxidation states of formed by the n,p reaction in irradiated inorganic sulfur compounds (S). When he irradiated solid potassium sulfate or sodium sulfate decahydrate, only a few per cent of the recoils were in lower (nonphosphate) oxidation states. With sodium sulfite (hydrated) the percentage rose to about 50%, while for sodium sulfide 65% to 95% were in lower oxidation states. He found similar correlations when the P was produced by the Cl (n,a) process. Here, the irradiation of KCIO3 or KCIO4 produced 99% phosphate, while NaCl gave only 35%. 

Rhombohedral sulfur Aten sulfur Engel sulfur e-Sulfur p-Sulfur Rhombohedral (p) sulfur Crystalline cyclo-S Space group R3... 

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