Solubility methanol

Since a barrel of hydrocarbon weighs about 300 lb, the amount of methanol soluble in the hydrocarbon liquid phase will be ... 

Note that the amount of methanol soluble in the condensate is crucial to determining the amount needed. Approximately 125 lb of methanol must be added so that approximately 25 lb will be dissolved in the water phase. Since the specific gravity of methanol is 0.8. this is equivalent to ... 

Stirring of the methiodide with the anion exchange resin prior to introduction into the column is necessary, because of the insolubility of this quaternary salt in methanol. For methanol-soluble methiodides, a solution of the salt may be added directly to the methanol-washed resin column. 

About 84% of the radioactivity in the excreta was extracted with methanol, another 9% was extracted with a 1% hydrochloric acid/ methanol mixture leaving about 7% unextracted. It was found by TLC that 75% of the methanol-soluble radioactivity was due to the presence of unchanged robenidine (Figure 3). Metabolites 1, 2, and 3 accounted for 7, 2 and 0.7% of the extractable radioactivity, respectively. 

Figure 7. TLC of the methanol-soluble radiactivity in the aged soil/excreta mixture from the 14C-robenidine model ecosystem...

Peterson and Scarrah 165) reported the transesterification of rapeseed oil by methanol in the presence of alkaline earth metal oxides and alkali metal carbonates at 333-336 K. They found that although MgO was not active for the transesterification reaction, CaO showed activity, which was enhanced by the addition of MgO. In contrast, Leclercq et al. 166) showed that the methanolysis of rapeseed oil could be carried out with MgO, although its activity depends strongly on the pretreatment temperature of this oxide. Thus, with MgO pre-treated at 823 K and a methanol to oil molar ratio of 75 at methanol reflux, a conversion of 37% with 97% selectivity to methyl esters was achieved after 1 h in a batch reactor. The authors 166) showed that the order of activity was Ba(OH)2 > MgO > NaCsX zeolite >MgAl mixed oxide. With the most active catalyst (Ba(OH)2), 81% oil conversion, with 97% selectivity to methyl esters after 1 h in a batch reactor was achieved. Gryglewicz 167) also showed that the transesterification of rapeseed oil with methanol could be catalyzed effectively by basic alkaline earth metal compounds such as calcium oxide, calcium methoxide, and barium hydroxide. Barium hydroxide was the most active catalyst, giving conversions of 75% after 30 min in a batch reactor. Calcium methoxide showed an intermediate activity, and CaO was the least active catalyst nevertheless, 95% conversion could be achieved after 2.5 h in a batch reactor. MgO and Ca(OH)2 showed no catalytic activity for rapeseed oil methanolysis. However, the transesterification reaction rate could be enhanced by the use of ultrasound as well as by introduction of an appropriate co-solvent such as THF to increase methanol solubility in the phase containing the rapeseed oil. 

The aqueous solubility of brinzolamide is pH dependent, with minimal solubility existing at neutral pH and increased solubility at more acidic and basic pH values. In the alcohol series, maximal solubility is observed with methanol. Solubilities of brinzolamide observed in this laboratory are listed in Table 2. 

Solubility-. Miscible with water, acetone, ethanol and methanol soluble in chloroform slightly soluble in benzene, diethyl ether and lignans (Lide Milne, 1996 Budavari, 1998)... 

Isolation and Ozonization of Lignin. The wood meal of white birch (Be-tula papyrifera Marsh.) was steamed for 15 min at 180°C, and extracted with water at 60°C, followed by extraction with methanol as shown in Figure 2. The methanol-soluble part was dried under vacuum after removal of methanol. The yield of methanol extract was 75% based on the amount of lignin present in the original wood. 

Polymerization was carried out in a sealed glass ampoule and terminated by the addition of a small amount of methanol. The reaction mixture was poured into a large amount of methanol to precipitate the polymer formed. After standing it overnight the precipitate was collected by filtration, washed with methanol and dried in vacuo at 60eC. The combined filtrates were evaporated to dryness under reduced pressure and the residue was redissolved in benzene to remove a small amount of insoluble material. The methanol-soluble oligomer was freeze-dried from the benzene solution. 

Eo, S. K. 1999. Antiviral activities of various water and methanol soluble substances isolated from Ganoderma lucidum. J. Ethnopharmacol. 68 129-136. 

Domovs, K. B. and Freund, E. H. 1960. Methanol-soluble complexes of lactose and of other carbohydrates. J. Dairy Sci. 42, 1216-1223. 

Filby (1975) separated a tertiary California oil into a low-molecular-weight methanol-soluble fraction, a methanol-insoluble-pentane-soluble fraction (resin), and a C5 asphaltene fraction. He observed that less than 5% of the Ni is present in the methanol-soluble fraction, exclusively as Ni porphyrins. More than 50% of the total Ni was found in the resin fraction, of which 64% occurred as Ni porphyrins. About 40% of the total Ni was found in the asphaltene fraction, of which 49% of the Ni present was in the porphyrin form. 

Burns with luminous flame almost insoluble in water, ethanol, methanol soluble in ether, chloroform, and other organic solvents solutions and impure solid decompose in light.1... 

Sodium Methoxide. Decomposed by water to sodium hydroxide and methanol. Soluble in methanol.2... 

Hordeum vulgare (barley) (Poaceae) [seed] Homologous Barley chloroform-methanol soluble proteins a-e = Barley CMa-e = BTAI-CMa-e, CMx (-16 kDa 10 Cys) Trypsin (CMc CMe) [CMa (= BTAI-CMa) inhibits a-Amylase] [298- 303]... 

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