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At low temperatures (below -60°C), the solution solidifies to a glassy pulverizable substance with no sharp melting point. SMEAH is a versatile hydride reducing agent. It readily converts epoxides , aldehydes , ketones , carboxylic acids , esters , acyl halides , and anhydrides to the corresponding alcohols .
Methanol and its vapours are flammable. Moderately toxic for small animals – Highly toxic to large animals and humans (in high concentrations) – May be fatal/lethal or cause blindness and damage to the liver, kidneys, and heart if swallowed – Toxicity effects from repeated over exposure have an accumulative effect on the central nervous system, especially the optic nerve – Symptoms may ...
This complex was first prepared from hexamethyl Dewar benzene and RhCl 3 (H 2 O) 3. [3] [4] [5] The hydrohalic acid necessary for the ring-contraction rearrangement is generated in situ in methanolic solutions of the rhodium salt, and the second step has been carried out separately, confirming this mechanistic description. [6]
The risks of using high-strength minoxidil include an increased likelihood of side effects. When using it as a topical solution, side effects of minoxidil may include: Skin irritation. Itching ...
Thus, ethanolic solutions of hydrated rhodium trichloride react with diethyl sulfide: [11] "RhCl 3 (H 2 O) 3" + 3 S(C 2 H 5) 2 → RhCl 3 (S(C 2 H 5) 2) 3 + 3H 2 O. This complex has been used as source of anhydrous rhodium trichloride that is soluble in lipophilic solvents. Both fac and mer stereoisomers of such complexes have been isolated. [3]
Rhodium is a hard, silvery, durable metal that has a high reflectance. Rhodium metal does not normally form an oxide, even when heated. [25] Oxygen is absorbed from the atmosphere only at the melting point of rhodium, but is released on solidification. [26] Rhodium has both a higher melting point and lower density than platinum.
Rhodocenium hexafluorophosphate forms after reaction of cyclopentadiene and rhodium(III) chloride hydrate in methanol following work-up with methanolic ammonium hexafluorophosphate; the reaction yield exceeds 60% with only 30 seconds of exposure to microwave radiation.
Wilkinson's catalyst (chloridotris(triphenylphosphine)rhodium(I)) is a coordination complex of rhodium with the formula [RhCl(PPh 3)], where 'Ph' denotes a phenyl group. It is a red-brown colored solid that is soluble in hydrocarbon solvents such as benzene, and more so in tetrahydrofuran or chlorinated solvents such as dichloromethane .