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Sodium Acetate Trihydrate HOT ICE - 1kg

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Sodium acetate is also used in heating pads, hand warmers, and hot ice. A supersaturated solution of sodium acetate in water is supplied with a device to initiate crystallization, a process that releases substantial heat.

Sodium acetate, CH 3COONa, also abbreviated Na O Ac, [8] is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses. a b Hsu, Leh-Yeh; Nordman, C. E. (1983). "Structures of two forms of sodium acetate, Na +.C 2H 3O 2 −". Acta Crystallogr. C. 39 (6): 690–694. doi: 10.1107/S0108270183005946. Sodium acetate undergoes decarboxylation to form methane (CH 4) under forcing conditions (pyrolysis in the presence of sodium hydroxide): This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. ( November 2023) ( Learn how and when to remove this template message)

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Industrially, sodium acetate trihydrate is prepared by reacting acetic acid with sodium hydroxide using water as the solvent. To manufacture anhydrous sodium acetate industrially, the Niacet Process is used. Sodium metal ingots are extruded through a die to form a ribbon of sodium metal, usually under an inert gas atmosphere such as N 2 then immersed in anhydrous acetic acid. Austen, Ian (2018-06-09). "The Secret Story of Salt and Vinegar Chips: the Canada Letter". The New York Times. ISSN 0362-4331 . Retrieved 2021-11-23. Sodium acetate may be added to food as a seasoning, sometimes in the form of sodium diacetate, a one-to-one complex of sodium acetate and acetic acid, [10] given the E-number E262. It is often used to give potato chips a salt and vinegar flavour, and may be used as a substitute for vinegar itself on potato chips as it doesn't add moisture to the final product. [11] Sodium acetate (anhydrous) is widely used as a shelf-life extending agent and pH control agent. [12] It is safe to eat at low concentration. [13] Buffer solution [ edit ] a b Acetic acid, sodium salt in Linstrom, PeterJ.; Mallard, WilliamG. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD) (retrieved 2014-05-25)

a b Cameron, T. S.; Mannan, K. M.; Rahman, M. O. (1976). "The crystal structure of sodium acetate trihydrate". Acta Crystallogr. B. 32: 87–90. doi: 10.1107/S0567740876002367. Sodium acetate is used to mitigate water damage to concrete by acting as a concrete sealant, while also being environmentally benign and cheaper than the commonly used epoxy alternative for sealing concrete against water permeation. [9] Food [ edit ] Heating pad [ edit ] A hand warmer containing a supersaturated solution of sodium acetate which releases heat upon crystallization The crystal structure of anhydrous sodium acetate has been described as alternating sodium-carboxylate and methyl group layers. [18] Sodium acetate trihydrate's structure consists of distorted octahedral coordination at sodium. Adjacent octahedra share edges to form one-dimensional chains. Hydrogen bonding in two dimensions between acetate ions and water of hydration links the chains into a three-dimensional network. [19] [20] Comparison of anhydrous and trihydrate crystal structuresA solution of sodium acetate (a basic salt of acetic acid) and acetic acid can act as a buffer to keep a relatively constant pH level. This is useful especially in biochemical applications where reactions are pH-dependent in a mildly acidic range (pH 4–6). a b Wei, K.-T.; Ward, D. L. (1977). "Sodium acetate trihydrate: a redetermination". Acta Crystallogr. B. 33 (2): 522–526. doi: 10.1107/S0567740877003975. Acetic acid, sodium salt, hydrate (1:1:3) in Linstrom, PeterJ.; Mallard, WilliamG. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD) (retrieved 2014-05-25) Mohammadzadeh-Aghdash, Hossein; Sohrabi, Yousef; Mohammadi, Ali; Shanehbandi, Dariush; Dehghan, Parvin; Ezzati Nazhad Dolatabadi, Jafar (15 August 2018). "Safety assessment of sodium acetate, sodium diacetate and potassium sorbate food additives". Food Chemistry. 257: 211–215. doi: 10.1016/j.foodchem.2018.03.020. ISSN 0308-8146. PMID 29622200. S2CID 4596295 . Retrieved 16 September 2020.

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