The enneahydrate MgSO 4♹H 2O was identified and characterized only recently, even though it seems easy to produce (by cooling a solution of MgSO 4 and sodium sulfate Na 2SO 4 in suitable proportions). ( April 2021) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources. It decomposes without melting at 1124 ☌ into magnesium oxide (MgO) and sulfur trioxide ( SO 3). Above 320 ☌, only the anhydrous form is stable. Īll the hydrates lose water upon heating. Īs of 2017, the existence of the decahydrate apparently has not been confirmed. Undecahydrate, MgSO 4♱1H 2O meridianiite, triclinic.Enneahydrate, MgSO 4♹H 2O, monoclinic.Heptahydrate, MgSO 4♷H 2O ("Epsom salt") epsomite, orthorhombic.Hexahydrate, MgSO 4♶H 2O hexahydrite, monoclinic.Pentahydrate, MgSO 4♵H 2O pentahydrite, triclinic.Tetrahydrate, MgSO 4♴H 2O starkeyite, monoclinic.Anhydrous, MgSO 4 unstable in nature, hydrates to form epsomite.Magnesium sulfate can crystallize as several hydrates, including: The anhydrous form and several hydrates occur in nature as minerals, and the salt is a significant component of the water from some springs. The monohydrate is favored for this use by the mid 1970s, its production was 2.3 million tons per year. The main use of magnesium sulfate is in agriculture, to correct soils deficient in magnesium (an essential plant nutrient because of the role of magnesium in chlorophyll and photosynthesis). The most common is the heptahydrate MgSO 4♷H 2O, known as Epsom salt, which is a household chemical with many traditional uses, including bath salts. nH 2O, for various values of n between 1 and 11.Magnesium sulfate is usually encountered in the form of a hydrate MgSO 4 It is a white crystalline solid, soluble in water but not in ethanol. If you want to find out more about some of the terms and concepts we have a Frequently Asked Questions Page.Magnesium sulfate or magnesium sulphate (in English-speaking countries other than the US) is a chemical compound, a salt with the formula MgSO 4, consisting of magnesium cations Mg 2+ (20.19% by mass) and sulfate anions SO 2− 4. You can follow us on social media using #IYPTCrystals and learn more about the wonders of crystals by following the CCDC on Twitter ccdc.cambridge, on Instagram ccdc_cambridge or on YouTube CCDCCambridge. This project (#IYPTCrystals) is part of the International Year of the Periodic Table celebration (#IYPT2019), read more about the project here. More info about the International Year of the Periodic Table (IYPT) in crystals project: Chlorophyll is responsible for the green colouration of plants and is also used as an additive in foods to give food a green colour. Magnesium is also a key component Chlorophyll a collective term for pigments found in plants which are essential for plants performing photosynthesis, in which plants convert sunlight into food. Magnesium has a range of applications including use in fireworks and flares due to the bright white light produced when Magnesium is burned. Typically elemental magnesium is coated in a layer of MgO protecting it from further corrosion. Magnesium is the 9th most abundant element in the universe and 8th in the earth’s crust.
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