A study of detonations in high molecular weight hydrocarbon fuels was performed in two GALCIT facilities: the 280 mm gaseous detonation tube (GDT) and a 1180 liter vessel (HYJET) with jet initiation capability. In the GDT, detonation pressure, wave speed and cell width measurements were made in hexane-oxygen-nitrogen mixtures with and without the addition of lower molecular weight fuels. Stoich...

Materials Butyllithium solution in hexane (1.6 M) and molybdenum disulfide (MoS2, 99.0% purity) with an average diameter of about 1 μm were purchased from Aladdin. Nitrile rubber (NBR) with acrylonitrile content 40%, was manufactured by Jilin Chemical Industry Company, Jilin, China. 1butyl-3-methyimidazolium chloride ionic liquid was supplied by Henan Lihua pharmaceutical Co., Ltd. The chemical...

Hexane, ethanol and aqueous extracts and fractions from leaves of Pouteria torta (Mart.) Radlk (Sapotaceae), a perennial tree, widespread in the Brazilian Cerrado, were tested for cytotoxicity with the Artemia salina toxicity model. Only the aqueous crude extract and the MeCN: CHCl3 fraction of the ethanol extract presented toxicity (0.28 mg/mL and 0.27mg/mL, respectively). Lupeol acetate was i...

In the title chiral sulfinic acid ester, C18H26O4S, the cyclo-hexane ring of the menthyl fragment adopts a chair conformation. The mol-ecular shape is defined by the dihedral angle of 47.87 (8)° between the mean planes of the cyclo-hexane and benzene rings. In the crystal, mol-ecules related by the screw axis are connected into chains along [010] by weak Car-H⋯O=S contacts.

Currently, research on the bambangan-fruit seed has become interesting because of its potential application as a cocoa butter alternative. This work aimed to determine changes in quality extracted bambangan-seed fat (BSF) obtained using hexane, petroleum ether, and ethanol. The extraction solvents affected total content (TFC), physicochemical properties, fatty-acid profile, triacylglycerol comp...

extraction of oil from poor quality pistachios results in increased add-value. in this study, the performance of different solvents in recovery of valuable oil and meal from the pistachio sample contaminated with aflatoxin was investigated and some chemical properties of the extracted oil were determined. the pistachio nut oil was extracted by three solvent systems including n-hexane (non- pola...

effect of otostegia persica on naloxone-induced morphine withdrawal syndrome was studied in male mice. dependence was induced using daily subcutaneous injections of morphine for three days. morphine was injected to mice at doses of 30 and 45mg/kg on day 1 and 60 and 90mg/kg on day 2 (8:00 am and 6:00 pm). on day 3, morphine (90mg/kg) was injected 1h before oral administration and 1.5h before in...

The insecticidal activities of extracts from 22 Malaysian medicinal plant 8 botanical families were tested against rice weevil: Sitophilus oryzae (L.) and lesser grain borer: Rhyzopertha dominica (F.). obtained using hexane, methanol, dichloromethane to extract potential biopesticides dried leaves. toxicity levels examined periodically based on antifeedant activity contact assays treated assay....

The title compound, C(20)H(20)O(5), was synthesized from the reaction between 3-methoxysalicaldehyde and 1,3-cyclo-hexa-nedione in the presence of palladium(II) chloride. The two fused xanthene rings and one of the six-membered cyclo-hexane rings adopt envelope conformations, while the other six-membered cyclo-hexane ring is in a chair conformation. The mol-ecular packing is stabilized by weak ...

Hexane extract of the seeds of Nigella sativa L. prevented pregnancy in Sprague-Dawley rats treated orally at 2 g/kg daily dose on days 1-10 post-coitum. Significant antifertility activity was also observed in its column fractions and subfractions. At contraceptive dose, the active hexane extract exhibited only mild uterotrophic activity comparable almost to 0.002 mg/kg dose of 17 varies; is di...