Perchlorate (ClO4 ) has been detected in numerous ground and surface waters, and has recently been added to the drinking water Candidate Contaminant List in the United States. Perchlorate can be removed from drinking water using ion exchange, but this results in the production of highly saline (7–12%) perchlorate-contaminated brines. Perchlorate-degrading microbial enrichments capable of growth...

steep temperature gradient is established in the solid This gradient extends to a depth of several microns, depending upon the external heat-flux rate As the propellant surface layers approach 150°C, the intermosaic blocks of the oxidizer particles decompose, and gaseous products diffuse to the oxidizer particle-fuel interface From ammonium perchlorate decomposition studies, the over-all reacti...

The title compound, C(8)H(14)N(2) (2+)·C(12)H(8)N(2)O(8)P(-)·ClO(4) (-), was formed by the reaction of α,α-bis-m-xylenediamine and sodium bis-p-nitro-phenyl-phosphate in the presence of Zn(ClO(4))·6H(2)O in methanol solution. The two amine groups of the m-xylenediammonium ion are each protonated and each hydrogen-bonded to two O atoms of the phosphate anion, which acts as a 1,3-bridge. The ammo...

The title compound, (C(2)H(10)N(2))[Ni(C(16)H(14)N(2)O(2))](4)(ClO(4))(2)·C(3)H(7)NO, crystallizes with four Ni(salen) mol-ecules {salen is 2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolate}, one ethyl-enediammonium cation (actually two half-cations, each located on a center of inversion), two perchlorate anions and one dimethyl-formamide solvent mol-ecule in the asymmetric unit. Each ...

Introduction: Perchlorate reducing bacteria may serve as model organisms for potential life forms that could exist on Mars. Due to the high reduction potential of perchlorate it can be utilized in microbial metabolism as an electron acceptor [1]. Perchlorate was discovered to be present in martain surface materials (~0.5% wt.) using the Wet Chemistry Laboratory and the Thermal and Evolved Gas A...