Ether sulfuric

Chemical Designations - Synonyms Anestithesia Ether Dietyl Ether Ethoxyethane Dietyl Oxide Sulfuric Ether Chemical Formula CjHjOCiHj... 

The (2,3,4-trimethoxyphenyl)methylpiperazine hydrochloride precipitates as white needles the precipitate is drained and washed with anhydrous sulfuric ether. Melting point 222°C to 226°C. 

If more than one type of these groups is present such a molecule may be named a hybrid according to Lothrop and Handrick. Groups which do not themselves produce expl props, but may influence them are called auxoplosives by these authors. We may quote hydroxyl, carboxyl, chlorine, sulfur, ether, oxygen, amine, etc. as examples of such groups... 

Having treated this subject more in the manner of a poet than a scientist [savant], the result is that it is difficult to know exactly his [Dumas s] thought.. . . Whether this statue should be in bronze, in marble, or in ivory the material is of little importance, says M. Dumas it is always the same statue, the same type. In effect, it little matters that this sulfate is a salt of copper, or of lead or of iron it always belongs to the sulfate type. But where do we stop ammonium sulfate, sulfuric ether, alum, do they belong to the sulfate type 54... 

Hartman s solution analychem Solution of thymol, ethyl alcohol, and sulfuric ether used for selective dentin analysis. hart-manz sa.lri-shan ... 

Synonyms Aether AI3-24233 Anaesthetic ether Anesthesia ether Anesthetic ether Diethyl ether Diethyl oxide EINECS 200-467-2 Ether Ethoxyethane Ethyl oxide NSC 100036 l,l -0 Qr-bis(ethane) RCRA waste number U117 Solvent ether Sulfuric ether UN 1155. 

Sulfuric acid, dimethyl ester, see Dimethyl sulfate Sulfuric ether, see Ethyl ether Sulphocarbonic anhydride, see Carbon disulfide Sulphos, see Parathion... 

Synonyms Diethyl ether ethoxyethane ethyl oxide ether anesthesia ether sulfuric ether... 

Ether, Diethyl Ethyl Ether or Sulfuric Ether. 

ETHYL ETHER Anesthesia Ether, Diethyl Ether, Diethyl Oxide, Ethoxyethane, Sulfuric Ether Flammable Liquid 2 4 1... 

Step 5). The petroleum ether solution is then extracted 4 to 6 times with 300 mL portions of dilute NaOH solution and filtered. The alkaline filtrate is then extracted six times with 400 mL portions of sulfuric ether, thus again transferring the hormone to ether solution. Up to this stage usually 60-75% of the total activity is accounted for. For example in a typical experiment the original crude material contained 300.000 units and the assay of the ether solution obtained at the end of Step 5, assayed fully 200.000 units. In the subsequent steps, however, a considerable amount of scattering of the active material occurs and hence all by-products are worked back into the process. 

The oil is leached with 200-240 mL of cold 0.2 N NaOH solution, repeating the extraction 4 or 5 times, and combining and filtering the alkaline extract. This aqueous alkaline solution is then extracted with six successive portions of sulfuric ether using about 300 mL of peroxide-free ether extract. 

As an alternative method of procedure, the following may be substituted for Steps 4 to 7 inclusive of the above process. After distilling the benzol, the tarry mass may be stirred directly with 2000 mL of hot 0.3 N NaOH with a mechanical stirrer. The suspension is chilled and the supernatant Liquid poured or siphoned off. Repetition of the extraction two or three times is advisable. The alkaline aqueous solution is then extracted five or six times with 400 mL portions of sulfuric ether, thus transferring the hormone to ether solution. After distillation of the ether the residue is steam distilled as long as a distillate other than water is obtained. The condensed water is removed by vacuum distillation and the small amount of dark tarry residue leached 5 times with 50 mL of hot 0.3 N NaOH. This solution is filtered and the filtrate extracted with sulfuric ether (100 mL, 6 times). The ether solution is distilled and the residue leached with cold 0.3 N NaOH using 20 mL five times. This alkaline solution is filtered and extracted with 50 mL of sulfuric ether five times. Upon distillation of the ether and solution of the residue in a small quantity of hot ethyl alcohol, the hormone separates in semi-crystalline balls which may be filtered off. A further quantity is obtained by adding 3 volumes of water to the alcoholic solution. It may be recrystallized from 25% aqueous ethyl alcohol or from 25% aqueous acetone or from any of the following chloroform, benzol, ethyl acetate, ethyl ether or petroleum ether. The final product consists of colorless crystals which, when crystallized from dilute alcohol, possess a distinct rhomboid outline. The crystals melt at 242-243°C (248-249°C corrected) with some decomposition. 

Synonym ether, ethyl ether, ethoxyethane, ethyl oxide, 3-oxapentane, l,l-oxybisethane, sulfuric ether... 

Synonyms Ether Ethyl ether Diethyl oxide Ethyl oxide Ethoxyethane Sulfuric ether Anesthetic ether... 

Sulfuric Ether 60-29-7 Thorium Nitrate 13823-29-5 Triethylene Glycol 112-27-6... 

Barikani, M., and S. Mehdipour. 1999. Synthesis, characterization and thermal properties of novel arglene sulfure ether polyinides and polyamides. Journal of Polymer... 

Ethyl oxid — Ethylio ether —Ether—Sulfuric ether —. ffither... 

Ethyl sulfates.—These are two in number (CaHs)HS04 = Ethyl-sulfuric or sulfovinic acid and (CaHj)aSOt—Ethyl sulfate—Sulfuric ether. 

Ethyl sulfate—(CaHs)aS04—154—the true sulfuric ether, is obtained by passing vapor of SOs into pure ethylic ether, thoroughly cooled. 

C2HgO (ethyl alcohol) and with HCl, C2H4 (the radical etherin ) forms C2HgCl (ethyl chloride). But why does ethyl alcohol appear to release C2H3 radicals when reacted with sulfuric acid to form sulfuric ether (C Hj O) ... 

Ethyl ether, ethoxy ethane, ether, ethyl oxide, sulfuric ether, not petroleum ether Reference codes... 

Morton, W.T.G. (1847) Remarks on the Proper Mode of Administering Sulfuric Ether by Inhalation. Dutton Wentworth, Boston. 

One of the most noteworthy reactions of the FMOs within the OP insecticides is the FMO-mediated sulfoxidation of the sulfur ether in phorate or phorate-oxon this reaction can also be catalyzed by CYP (Levi and Hodgson, 1992). This sulfur can be oxidized twice—to the sulfoxide initially... 

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