Risultati di ricerca
2 giorni fa · The purple sulfur bacteria and the green sulfur bacteria use hydrogen sulfide as an electron donor in photosynthesis, thereby producing elemental sulfur. This mode of photosynthesis is older than the mode of cyanobacteria, algae, and plants, which uses water as electron donor and liberates oxygen.
- H₂S
- 34.08 g·mol−1
- −85.5 °C (−121.9 °F; 187.7 K)
- 3.980 g dm−3 (at 20 °C)
1 giorno fa · In biology, abiogenesis (from Greek ἀ- a- 'not' + βῐ́ος bios 'life' + γένεσις genesis 'origin') or the origin of life is the natural process by which life has arisen from non-living matter, such as simple organic compounds.
3 giorni fa · Lysergic acid is made by alkaline hydrolysis of lysergamides like ergotamine, a substance usually derived from the ergot fungus on agar plate; or, theoretically possible, but impractical and uncommon, from ergine (lysergic acid amide, LSA) extracted from morning glory seeds.
- Low
- /daɪ eθəl ˈæmaɪd/, /æmɪd/, or /eɪmaɪd/
- LSD, LSD-25, LAD, Acid, others
- Delysid
5 giorni fa · TEOS undergoes hydrolysis via the so-called sol-gel process. The course of the reaction and nature of the product are affected by catalysts, but the idealized equation is: [53] Si ( OC 2 H 5 ) 4 + 2 H 2 O SiO 2 + 4 HOCH 2 CH 3 {\displaystyle {\ce {Si(OC2H5)4 + 2 H2O -> SiO2 + 4 HOCH2CH3}}}
3 giorni fa · Dextromethorphan is the dextrorotatory enantiomer of levomethorphan, which is the methyl ether of levorphanol, both opioid analgesics. It is named according to IUPAC rules as (+)-3-methoxy-17-methyl-9α,13α,14α- morphinan. As its pure form, dextromethorphan occurs as an odorless, opalescent white powder.
- C₁₈H₂₅NO
- Robitussin, Delsym, others
- AU: A
3 giorni fa · Conclusion. The pH of sulfur dichloride (SCl2) in water is not explicitly stated, but we can infer that it is an acidic compound due to the hydrolysis reaction that produces chlorine-containing acids. The pH of the solution will depend on factors such as the concentration of SCl2, temperature, and the presence of other substances.
2 giorni fa · Typische Reaktionen sind die Umsetzung zu Carbonsäuren ( Hydrolyse) und die Reduktion zu Aminen oder Aldehyden. Über das Stickstoffatom können Nitrile an Metallatome koordinieren und so Komplexe bilden.
