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The abundance of water on the Moon's surface was inferred to be equivalent to the contents of a 12-ounce bottle of water per cubic meter of lunar soil. [9] The Chang'e 5 probe, which landed on the Moon on 1 December 2020, carried a mineralogical spectrometer that could measure infrared reflectance spectra of lunar rock and regolith. The ...
Pyrogallol is an organic compound with the formula C 6 H 3 (OH) 3. It is a water-soluble, white solid although samples are typically brownish because of its sensitivity toward oxygen. [ 3 ] It is one of three isomers of benzenetriols .
It is a pale white powder with the chemical formula Ce(OH) 3. [2] ... hydroxide is prepared by the reaction of water on cerium metal at 90 °C: 2 Ce + 6 H 2 O → 2 ...
The formula, Cu 2 CO 3 (OH) 2 shows that it is halfway between copper carbonate and copper hydroxide. Indeed, in the past the formula was written as CuCO 3 ·Cu(OH) 2. The crystal structure is made up of copper, carbonate and hydroxide ions. [37] The mineral atacamite is an example of a basic chloride. It has the formula, Cu 2 Cl(OH) 3.
2R 3 C−H + O 2 → 2 R 3 C−OH R 3 C−H + O 2 + 2e − + 2H + → R 3 C−OH + H 2 O. Since O 2 itself is a slow and unselective hydroxylating agent, catalysts are required to accelerate the pace of the process and to introduce selectivity. [1] Hydroxylation is often the first step in the degradation of organic compounds in air.
Yttrium(III) hydroxide can be produced by reacting yttrium(III) nitrate and sodium hydroxide in aqueous solution: [1] Y(NO 3) 3 + 3 NaOH → Y(OH) 3 ↓ + 3 NaNO 3. This gives yttrium(III) hydroxide as a white gelatinous precipitate, which can be dried to a white powder. [2]
In order to study gas phase interstellar chemistry, it is convenient to distinguish two types of interstellar clouds: diffuse clouds, with T=30-100 K, and n=10–1000 cm −3, and dense clouds with T=10-30K and density n= 10 4-10 3 cm −3. Ion chemical routes in both dense and diffuse clouds have been established for some works (Hartquist 1990).
2 [Cu(NH 3) 4 Cl 2] + 5 HCl + 3 H 2 O → Cu 2 (OH) 3 Cl + 8 [NH 4]Cl. More efficiently, the two spent etching solutions are combined under mild acidic conditions, one neutralizing the other, to produce higher yield of basic copper chloride: 3 [Cu(NH 3) 4 Cl 2] + 5 CuCl 2 + 12 H 2 O → 4 Cu 2 (OH) 3 Cl + 12 [NH 4]Cl. Seeding is introduced ...