Solvents petroleum ether

Reagents, such as tri alkyl aluminums (90) and sodium benzophenone (109), are quite useful as reducing agents. Alkyl aluminums have been used to synthesize Cr(CO), Mo(CO), and W(CO) in high yields (90). In one case, hydrogen was used effectively as a reducing agent in petroleum ether solvent (110,111). 

Food (fish) Grinding with petroleum ether solvent extraction clean-up by liquid-liquid partition, Florisil column chromatography GC/NPD 0.1 ppm Not specified Lombardo and Egry 1979... 

The petroleum ether solvents are a specific-boiling-range naphtha, as is ligroin. Thus, the term petroleum solvent describes a special liquid hydrocarbon fraction obtained from naphtha and used in industrial processes and formulations (Weissermel and Arpe, 1978). These fractions are also referred to as industrial naphtha. Other solvents include white spirit, which is subdivided into industrial spirit [distilling between 30 and 200°C (86 to 392°F)] and white spirit [light oil with a distillation range of 135 to 200°C (275 to 392°F)]. The special value of naphtha as a solvent lies in its stability and purity. 

Miscible with ethanol, benzene, chloroform, ether, carbon disulfide (U.S. EPA, 1985), petroleum ether, solvent naphtha, and volatile oils (Yoshida et ah, 1983a). 

For adhesive bonding of PES to itself or to other materials, epoxy adhesives are generally used. Cyanoacrylates provide good bond strength if environmental resistance is not a factor. Parts made from PES can be cleaned using ethanol, methanol, isopropanol, or low-boiling petroleum ether. Solvents that should not be used are acetone, MEK, perchloroeth-ylene, tetrahydrofuran, toluene, and methylene chloride. 

The disappearance of the dark red (alkyne)Co2(C0)g complex can be monitored by TLC on silica gel with a 1 9 diethyl ether petroleum ether solvent mixture. 

Experimental Values (i) Compared with Values Calculated from Eq. (6-8) Petroleum Ether Solvent, Alumina of Varying Activity... 

A. obtectus Lipid dasses separated by HPLC-ELSD. The mobile phase consisted of petroleum ether (solvent A) and dichloromethane with the addition of 15% acetone and 1.5% isopropanol (solvent B). The gradient was programmed to change linearly from 100% A to 100% B within 20 min. Golfbiowski et al., 2008b... 

Solvents are widely used in organic reactions. These liquids are often flammable and have varying degrees of toxicity. As illustrated in Incident 1.2.2.1 there is always the possibility of fires when handling flammable solvents, especially if there are unrecognized ignition sources in the vicinity. While we really don t know speciflcally what the researcher was doing or why the particular 10% ethyl acetate/90% petroleum ether solvent was chosen for her work, one can speculate that perhaps a less hazardous substitute or a smaller scaled experiment could have been considered for her experiments. 

---