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The only hydrates with stable melting points are NaOH·H 2 O (65.10 °C) and NaOH·3.5H 2 O (15.38 °C). The other hydrates, except the metastable ones NaOH·3H 2 O and NaOH·4H 2 O (β) can be crystallized from solutions of the proper composition, as listed above. However, solutions of NaOH can be easily supercooled by many degrees, which ...
Two pieces of theme music were used for the anime; one opening theme and one ending theme. The opening theme is "Dearest," a modified version of Shoko Sawada's "Shin'ai naru Hitoe," performed by Hitomi Mieno and arranged by Masara Nishida. The ending theme is "White Station" by Ace File composed of Mae Yoshikawa, Marina Kushi, Asagi Kudo, Saori ...
It was adapted from the popular 2007 novel Hawthorn Tree Forever by Ai Mi, which was based on a true story set during the Cultural Revolution. [1] The film was released in Mainland China (September 2010), Hong Kong (November 2010) and Singapore (February 2011).
The hydroxide ion appears to rotate freely in crystals of the heavier alkali metal hydroxides at higher temperatures so as to present itself as a spherical ion, with an effective ionic radius of about 153 pm. [39] Thus, the high-temperature forms of KOH and NaOH have the sodium chloride structure, [40] which gradually freezes in a ...
NaO 2 is prepared by treating sodium peroxide with oxygen at high pressures: [2]. Na 2 O 2 + O 2 → 2 NaO 2. It can also be prepared by careful oxygenation of a solution of sodium in cryogenic liquid ammonia:
Sodium periodate is an inorganic salt, composed of a sodium cation and the periodate anion.It may also be regarded as the sodium salt of periodic acid.Like many periodates, it can exist in two different forms: sodium metaperiodate (formula NaIO 4) and sodium orthoperiodate (normally Na 2 H 3 IO 6, but sometimes the fully reacted salt Na 5 IO 6).
The sodium fusion extract is made alkaline by adding NaOH. To this mixture, freshly prepared FeSO 4 solution is added and boiled for some time and then cooled. A few drops of FeCl 3 are added and Prussian blue (bluish green) color forms due to formation of ferric ferrocyanide along with NaCl. This shows the presence of nitrogen in the organic ...
The structure of sodium oxide has been determined by X-ray crystallography.Most alkali metal oxides M 2 O (M = Li, Na, K, Rb) crystallise in the antifluorite structure.In this motif the positions of the anions and cations are reversed relative to their positions in CaF 2, with sodium ions tetrahedrally coordinated to 4 oxide ions and oxide cubically coordinated to 8 sodium ions.