In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Preparation of Ba-doped γ-Al2O3 from kaolin and its characteristics, published in 2003-12-31, which mentions a compound: 17927-65-0, mainly applied to barium doped alumina powder thermal stability, Recommanded Product: Aluminum(III) sulfate xhydrate.
The synthesis of γ-Al2O3 powder for catalytic support from kaolin-derived Al sulfate solution was described. Al sulfate hydrate[Al2(SO4)3·nH2O] was precipitated by dropping it into Et alc. The γ-Al2O3 power was prepared by calcination of the precipitate The powder showed thermal stability after calcination at 1000° for 2 h. However, the powder calcined at 1200° for 2 h was fully transformed into γ-Al2O3. Ba-doped γ-Al2O3 samples were prepared by impregnation of γ-Al2O3 with appropriate solution concentrations(mol%) of Ba chloride [Ba]/([Ba]+[Al]). The effect of Ba addition on the thermal stability of the Ba-doped γ-Al2O3 was studied. The amount of the additive was 2-10 mol% with respect to the γ-Al2O3. The additions of 4 mol% and 8 mol% Ba were effective at 1250° and 1450° in retarding the γ-Al2O3 transition due to the formation of Ba hexaaluminate(BaAl12O19). The activation energies of the γ-Al2O3 → α-Al2O3 transition in samples with and without 4 mol% Ba-doped were calculated in accordance with the Arrhenius equation and resulted in 114.5 Kcal/mol and 137.8 Kcal/mol, resp.
There is still a lot of research devoted to this compound(SMILES：O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al])Recommanded Product: Aluminum(III) sulfate xhydrate, and with the development of science, more effects of this compound(17927-65-0) can be discovered.
Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com