Talk:Magnesium perchlorate
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Magnesium perchlorate was used as a constituent of a water activated (magnesium-magnesium perchlorate) battery during the vietnam war. It was used to partially passivate the magnesium anode plates during the working life of the primary battery pack.WFPM (talk) 02:20, 6 March 2013 (UTC)
Oddity in listed decomposition point and drying temperature
[edit]The right sidebar claims 251°C as the MP... but it's supposed to be dried at 250 according to the article text and also decomposes at it.
https://cameochemicals.noaa.gov/chemical/1011 says:
"Decomposes at 185-190°C [Hawley]. Noncombustible but accelerates the burning of combustible materials. If large quantities are involved in the fire or the combustible material is finely divided an explosion may result. Avoid contact with mineral acids because of the danger of explosion. In the preparation of anhydrous dimethyl sulfoxide by vacuum distillation from anhydrous magnesium perchlorate, an explosion occurred [MCA Case History 1187, 1966]. Drying ethylene oxide with magnesium perchlorate resulted in an explosion [NSC Newsletter. Chem. Soc. 1959]. Magnesium perchlorate used in drying hydrocarbons exploded when heated to 220°C [Ind. & Eng. News 17:70. 1939]. As soon as trimethyl phosphite contacted a small amount of magnesium perchlorate in a flask, there was a flash and an explosion that shattered the flask [Allison 1968]."
...they later list 250°C as decomposition point and no given melting point which makes sense given that explosive decomposition seems to be a common theme at variable temperatures depending on what residues were left near it. They Terk Err Jerbs (talk) 13:57, 19 May 2016 (UTC)
Magnesium perchlorate on Mars
[edit]The article originally stated Magnesium perchlorate "appear[s] especially abundant and/or hydrated in locations where active flows are observed." This was the conclusion of a 2015 paper by Ojha et al., but later shown by Leask, et al. (2018) to be an artifact in the instrument and not a true detection of magnesium perchlorate in those regions. — Preceding unsigned comment added by Andrew Shumway (talk • contribs) 18:19, 9 July 2020 (UTC)