petroleum ether in a sentence

Examples

1. A wide variety of solvents can be used for extraction, such as chloroform, dichloromethane, petroleum ether, naphtha, benzene, butane, methanol, ethanol, isopropanol, and olive oil.
2. The freebase form melts at 250 251 �C and is soluble in moderately polar organic solvents such as chloroform, methylene chloride, benzene, and methanol, but is insoluble in water and petroleum ether.
3. Non-polar solvents such as benzene, chloroform and petroleum ether will not extract the water-soluble constituents of marijuana or hashish, and will yield a somewhat more potent oil as a result.
4. A study in rats showed that petroleum ether extracts of " E . prostrata " decreased the amount of time it took for hair to begin regrowing and to fully regrow in shaved albino rats.
5. Dioscorine is completely soluble in a number of hydrophilic solvents ( water, ethanol, acetone ) but only slightly soluble in hydrophobic and mostly polar solvents ( chloroform, ether, benzene, petroleum ether ).
6. The plant yields 0.3 % of a dark green petroleum ether extract, which, on steam distillation in vacuo, yields 10 to 15 per cent of a fairly viscous, yellowish, volatile oil.
7. I have a jar with a mixture of some lipids and either petroleum ether or ligroin ( It's called " lacknafta " in swedish and I think it translates to ligroin ) and I want to separate these two.
8. Phatak et al ., ( 1991 ) has investigated the hair growth promoting activity of " Tridax procumbens " and the petroleum ether extract of " Tridax procumbens " was found to be effective in promoting hair growth in male wistar albino rats.
9. Shenhua, a Chinese coal mining company, decided in 2002 to build a direct liquefaction plant in Erdos, Inner Mongolia ( Erdos CTL ), with barrel capacity of of liquid products including diesel oil, liquefied petroleum gas ( LPG ) and naphtha ( petroleum ether ).
10. Chemically similar to the more refined, petroleum-derived kerosene, it consists mainly of several hydrocarbons of the alkane series, with 10 to 16 carbon atoms in each molecule and a higher boiling point ( 175 & ndash; 325 �C ) than gasoline or the petroleum ethers and lower than the oils.