Search results
Results from the WOW.Com Content Network
The formula of this compound can be written more descriptively as [Cr(H 2 O) 6] 2 (SO 4) 3 ·6H 2 O. Six of the eighteen water molecules in this formula unit are water of crystallization. Hydrated chromium(III) sulfate, Cr 2 (SO 4) 3 ·15(H 2 O), (CAS #10031-37-5) is a green solid that also readily dissolves in water. It is obtained by heating ...
The salt is produced by treating chromium metal with aqueous sulfuric acid: [2] Cr + H 2 SO 4 + 5 H 2 O → CrSO 4 ·5H 2 O + H 2. It can be produced through the reaction of sulfate salts and chromium(II) acetate [3] or, for in situ use, the reduction of chromium(III) sulfate with zinc. [1]
Chromium(III) sulfide is the inorganic compound with the formula Cr 2 S 3. It is a brown-black solid. It is a brown-black solid. Chromium sulfides are usually nonstoichiometric compounds , with formulas ranging from CrS to Cr 0.67 S (corresponding to Cr 2 S 3 ).
Molar mass: 84.061 g/mol Appearance black crystals ... Chromium(II) sulfide is a semiconductor, [7] [8] and is also used as a catalyst. [9] Chemical properties
KCr(SO 4) 2 Molar mass: 283.220 g/mol Appearance dark purple needles or greyish-brown powder when anhydrous Density: 1.83 g cm −3: Melting point: 89 °C (192 °F; 362 K) Boiling point: 400 °C (752 °F; 673 K)
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
3 c 2 h 5 oh + 2 k 2 cr 2 o 7 + 8 h 2 so 4 → 3 ch 3 cooh + 2 cr 2 (so 4) 3 + 2 k 2 so 4 + 11 h 2 o The excess dichromate is determined by titration against sodium thiosulfate . Adding the amount of excess dichromate from the initial amount, gives the amount of ethanol present.
Elon Musk said Starlink satellite internet is inactive in India, his first comments since authorities seized two of the company's devices in recent weeks, one in an armed conflict zone and another ...