In the title molecular salt, C(21)H(25)N(4)S(3) (+)·ClO(4) (-), an intra-molecular N-H⋯N hydrogen bond stabilizes the conformation of the cation. The three N-C-C-S torsion angles are 91.7 (2), 100.9 (2) and 167.02 (14)°.

Perchlorate (ClO 4 ) has been detected in a large number of surface and ground waters in the US. Due to health concerns of perchlorate in drinking water, the California Department of Health Services has established a provisional action level of 18 mg/L. Several microbial isolates have been obtained capable of microbiological perchlorate reduction through cell respiration, but few of these have ...

The butane-1,4-diammonium cation of the title compound, C(4)H(14)N(2) (2+)·2ClO(4) (-), lies on a special position of site symmetry 2/m, whereas the perchlorate anion is located on a crystallographic mirror plane. An intricate three-dimensional hydrogen-bonding network exists in the crystal structure with each H atom of the ammonium group exhibiting bifurcated inter-actions to the perchlorate a...

An experimental study was conducted on electrically controlled solid propellants to gain an understanding the effect of applied DC voltage combustion characteristics. A group polymer electrolytes comprising polyethylene oxide, lithium perchlorate, and ammonium perchlorate were created their behavior characterized. The electrolyte found decompose ignite readily with application a potential. deco...

The treatment of perchlorate-contaminated groundwater was examined using two side-by-side pilot-scale fixed-bed bioreactors packed with sand or plastic media, and bioaugmented with the perchlorate-degrading bacterium Dechlorosoma sp. KJ. Groundwater containing perchlorate (77microg/L), nitrate (4mg-NO(3)/L), and dissolved oxygen (7.5mg/L) was amended with a carbon source (acetic acid) and nutri...

Simultaneous thermal analysis (STA) method has been applied to study decomposition reactions of AP under a flowing nitrogen atmosphere and static air. Results obtained indicate that a phase transformation occurs prior to the decomposition reaction. Decomposition takes place exothermally in two stages, first stage of decomposition could be suppressed by the controlled heating programme. Addi...

In the title compound, C(6)H(17)N(3) (2+)·2ClO(4) (-), the piperazine ring adopts a chair conformation with the ethyl-ammonium fragment occupying an equatorial position. In the crystal, the dications and perchlorate anions are linked through N-H⋯O hydrogen bonding and weak C-H⋯O hydrogen bonding into a three-dimensional supra-molecular network.

Perchlorate (ClO(4)(-)) is a persistent contaminant found in drinking groundwater sources in the United States. Ion exchange (IX) with selective and disposable resins based on cross-linked styrene divinylbenzene (STY-DVB) beads is currently the most commonly utilized process for removing low concentrations of ClO(4)(-) (10-100 ppb) from contaminated drinking water sources. However, due to the l...