Hugtakasafn þýðingamiðstöðvar utanríkisráðuneytisins
Hugtakasafn : Eitt hugtak
- ÍSLENSKA
- óníumsamband
- ENSKA
- onium compound
- Svið
- íðefni
- Dæmi
- væntanlegt
- Rit
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[is]
Reglugerð framkvæmdastjórnarinnar (ESB) nr. 1152/2010 frá 8. desember 2010 um breytingu á reglugerð ráðsins (EB) nr. 440/2008 þar sem mælt er fyrir um prófunaraðferðir samkvæmt reglugerð Evrópuþingsins og ráðsins (EB) nr. 1907/2006 um skráningu, mat, leyfisveitingu og takmarkanir að því er varðar efni (efnareglurnar (REACH)) í því skyni að laga hana að tækniframförum
- [en] Commission Regulation (EU) No 1152/2010 of 8 December 2010 amending, for the purpose of its adaptation to technical progress, Regulation (EC) No 440/2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)
- Skjal nr.
- 32010R1152
- Athugasemd
- [en] The onium salts are of a big interest for theoretical and structural chemistry, and for organic synthesis. Some representatives of the group (e.g. ammonium salts) were known from the oldest times. Many onium salts are met the nature: ammonium salts (either as inorganic salts, and organic derivatives, e.g. aminoacids, salts of biogenic amines and alkaloids, etc.); oxonium salts (plant pigments as anthocyans are organic oxonium compounds), etc. In 1894 C. Hartmann and V. Meyer prepared the first iodonium salts - 4-iododiphenyliodonium hydrogensulfate and diphenyliodonium salts, and suggested the ending -onium for all compounds with properties similar to those of ammonium salts. Nowadays onium compounds of almost all nonmetals are synthesised and studied. (http://pubs.acs.org/doi/abs/10.1021/ed074p734)
- Orðflokkur
- no.
- Kyn
- hk.
Takk fyrir
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