New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars. Thermal decomposition of perchlorate (ClO 4-) salts in the Rocknest samples are a possible explanation for this evolved oxygen release [1, 2]. Among those that Phoenix detected is calcium perchlorate, a mixture of calcium, chlorine and oxygen that's found in arid places like the Atacama Desert in Chile. A perchlorate is a chemical compound containing the perchlorate ion, ClO − 4.The majority of perchlorates are commercially produced salts. Results show that the polycyclic aromatic hydrocarbon parent molecules and most of the carboxylic acids are still detectable after pyrolysis in presence of calcium perchlorate and that the degradation and/or evolution of all parent molecules mostly depends on their chemical nature. “There are bacteria on Earth that enjoy perchlorates as a food,” Guinan says. As the microbes eat the salt, they give off oxygen. They are mainly used for propellants, exploiting properties as powerful oxidizing agents and to control static electricity in food packaging. At the Phoenix landing site, perchlorate concentrations in the martian soil are ranging from 0.4 to 0.6 wt% (Hecht et al.,2009). Scientists have found the chemical calcium percholate which would suck moisture out of the air and keep water liquid on the surface Detection on Mars [6] The perchlorate ion was detected by the Wet Chemistry Lab (WCL) onboard the Phoenix lander [Hecht et al., 2009]. See more » Ammonium perchlorate. I have been searching for a molecule layout of this chemical (like a pdb or cis style file) that can be viewed in say JMOL with no luck. Posted on September 28, 2015 by rburnham. "We have discovered the substance calcium perchlorate in the soil and, under the right conditions, it absorbs water vapour from the atmosphere. The perchlorate ion, made of one chlorine atom and four oxygen atoms, typically combines with elements such as magnesium, calcium or iron to form a … We have studied sodium, potassium, magnesium and calcium chlorates, but focused on NaClO 3 and Mg(ClO 3) 2 as the most relevant to the Phoenix chemistry [Chevrier et al., 2009; Marion et al., 2010]. Then, in 2013, the Curiosity rover’s Sample Analysis at Mars (SAM)instrument found calcium perchlorate in soil samples from Rocknest, which is a spot within Gale Crater. In fact, recent experiments have shown that water with dissolved salts of magnesium and calcium perchlorate (a chemical compound containing chlorine bound to … The rover on Mars reported on Mars dirt samples, and they talked about calcium perchlorate tetrahydrate. perchlorate levels on Mars, we have isolated four perchlorate resistant, halophilic/halotolerant bacterial speciesfromBigSoda Lake(BSL) inNevada,USA.The 16SribosomalRNAsequences revealedthatthese halophiles belong to the generaBacillus, Alkalibacillus and Halomonas. Calcium perchlorate is classified as a metal perchlorate salt with the molecular formula Ca(ClO4)2. Rover Sample Analysis at Mars (SAM) instrument at the Rocknest eolian deposit. It is a colorless or white solid that is soluble in water. Calcium perchlorate on Mars Thread starter zincshow; Start date Dec 3, 2012; Tags mars; Dec 3, 2012 #1 zincshow. Furthermore, spectral investigations indicated that perchlorate salt hydrates and their brines might play a role in the formation of recurring slope lineae (RSL) on Mars (Ojha et al.,2015). Different components in the Martian soil could affect the decomposition temperature of calcium per-chlorate or another oxychlorine species. Magnesium perchlorate and calcium perchlorate were proposed as the most likely cation species of perchlorate at the Phoenix landing site.” Translated into journalese, calcium chloride probably exists on the surface of Mars. 104 0. Mars may hold liquid water raising hopes of alien life. The new analysis suggested that the soil found at Chryse and Utopia Planitiae by the Viking landers contained perchlorates at a concentration less than or equal to 0.1%. But calcium perchlorate may not have to be a showstopper. Perchlorate is a powerful oxidizer and ammonium is a good fuel. Instruments on the Mars Phoenix Lander and the Mars Science Laboratory detected perchlorate in martian soil, which is nonreactive under the conditions of the Viking biology experiments. Besides, another problem is that the synthetic dirt did not comprise calcium perchlorate, a toxic salt that makes for about two percent of the surface on Mars. 2. This interaction of the two components in the soil could result in O2 release temperatures consistent with those … Furthermore, calcium perchlorate could have been the source of Cl in the chlorinated-hydrocarbons species that were detected by SAM. It is becoming increasingly clear that there is plenty of brine on Mars. Ions in solution (including ClO 4 −) were measured by … As a strong oxidizing agent, it reacts with reducing agents when heated to generate heat and products that may be gaseous (which will cause pressurization in closed containers). We show that calcium perchlorate exposed to gamma rays decomposes in a CO 2 atmosphere to form hypochlorite (ClO −), trapped oxygen (O 2), and chlorine dioxide (ClO 2). He said: "When night falls, some of the water vapour in the atmosphere condenses on the planet surface as frost, but calcium perchlorate is very absorbent and … Then, in 2013, the Curiosity rover's Sample Analysis at Mars (SAM)instrument found calcium perchlorate in soil samples from Rocknest, which is a spot within Gale Crater. Tag Archives: calcium perchlorate. This discovery substantially increases the prospects for life existing on Mars, or for living organisms from Earth to survive there, including human colonists. Analysing the Martian soil, NASA’s rover found a substance known as calcium perchlorate – a salt that can prevent water from freezing by lowering its freezing point. Results from NASA’s Mars Curiosity rover have shown that salty liquid water could exist just beneath the surface. RSLs are caused by flows of liquid brines. Calcium perchlorate (Ca(ClO 4) 2) is a highly deliquescent salt that may exist on the surface of present-day Mars; however, its water uptake properties have not been well characterized at temperatures and relative humidity conditions relevant to Mars.Here, we quantify the deliquescent relative humidity (DRH) and efflorescent relative humidity (ERH) of Ca(ClO 4) 2 as a function of … Ammonium perchlorate ("AP") is an inorganic compound with the formula NH4ClO4. BOTTLE consists of four containers with deliquescent salts that have been found on Mars (calcium-perchlorate Ca(ClO 4) 2, magnesium-perchlorate Mg(ClO 4) 2, calcium-chloride CaCl 2 and sodium-perchlorate NaClO 4) and two containers that are open to the air, to collect atmospheric dust. Artist's idea of astronauts and human habitats on Mars NASANASA is planning to land a crew on the Moon by Mars colony: how to make breathable air and fuel from brine – new research - … The pervading carpet of perchlorate chemicals found on Mars may boost the chances that microbial life exists on the Red Planet — but perchlorates are also perilous to the health of future crews destined to explore that way-off world. It is an inorganic compound that is a yellow-white crystalline solid in appearance. … The salts are exposed to the Martian environment through a High Efficiency Particulate Air (HEPA) … In the even colder temperatures likely to be found in the smaller lakes, another salt — calcium perchlorate — would be needed to keep water from freezing at temperatures as low as -77 C ( … Rover Sample Analysis at Mars ( SAM ) instrument at the Rocknest eolian deposit inorganic compound that is a oxidizer! 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