Acids 2- ethanol

Figure 26. Pressure - composition (W2) plot for the system CO2 (l)/palmitic acid (2)/ethanol (3) at 323 and 343 K without ethanol [24] and for an ethanol to CO2 molar ratios of 0.25 [61].

Fig. 2 e. Boundary curves for the HPC-2 solutions in (1) acetic acid, (2) ethanol. I - isotropac solutions, II - anisotropac solutions. 

CH3CH(0H)C(0)0Et. A colourless liquid with a pleasant odour, b.p. 154 C. Manufactured by distilling a mixture of ( )-lactic acid, ethanol and benzene in the presence of a little sulphuric or benzenesulphonic acid. It is a solvent for cellulose nitrate and acetate and also for various resins. Used as a lacquer solvent. 

ANSt (free acid) Ethanol 0.38 Anthracene 0.39 POPOP... 

A A Dimethylamino)phenol. 3-Hydroxy-A7,A7-dimethylariiline (14) forms white needles and is soluble in alkaU, mineral acid, ethanol, diethyl ether, acetone, and benzene and practically insoluble in water. 

The following polyvitamin prepai ations were analyzed Kal tsid (OAO Comfort Plus , Russia), Asvitol (OAO INC Marbiofarm , Russia), Pikovit (KRKA, d.d. The New Place, Slovenia), Yeast with vitamin C (000 EKKO Plus , Russia). Chromatographic experiment has been carried out using Silufol UV-254 (Kavalier, Czech Republic) and acetone - ethyl acetate - acetic acid - ethanol (3 5 1 1) - CTAB (2T0 M) as a mobile phase mixture. The linearity calibration plot, built in coordinate S = f (IgqAC), is valid in the interval 5-25 p.g. Correctness of the determination has been checked by photometry. The obtained results for the ascorbic acid determination are presented below. 

Aminohippuric acid Phthalic acid Ethanol Toluene... 

If one replaces one of the two equivalents of P-dicarbonyl with urea, such that the reaction is now carried out with one equivalent of aldehyde 123, one equivalent of P-dicarbonyl 124 and an equivalent of urea 125 in acidic ethanol solution, then dihydropyrimidines 126 are formed. This class of reactions has been named Biginelli reactions and are reviewed in section 10.6... 

An example of this methodology was its use in the synthesis of vitamin Be, pyridoxine 12. Cycloaddition of oxazole 9, prepared from ethyl A-acetylalanate and P2O5, with maleic anhydride initially gave 10. Upon exposure to acidic ethanol, the oxabicyclooctane system fragments to afford pyridine 11. Reduction of the ester substituents with LiAlIU generated the desired product 12. 

The yields of Skraup/Doebner-von Miller reaction can be dramatically improved by running the reaction as a two-phase mixture. Reaction of crotonaldehyde with 30 in acidic ethanol provides only 10% of quinoline 31. However, when a toluene solution of crotonaldehyde is reacted with 30 (starting as the acetanilide) in 6M HCI at 100 °C for 2 h, quinoline 31 is isolated in 80% yield on 5kg scale. 

The main by-products are formic acid, ethanol, methanol, acetaldehyde, acetone, and methylethyl ketone (MEK). When manganese acetate is used as a catalyst, more formic acid (=25%) is obtained at the expense of acetic acid. 

Barium Oxide (Barium Monoxide, Baryta, Barium Protoxide, Calcined Baryta). BaO, mw 153.36 colorl or white to yelsh-white deliq powd mp 1923°, bp 2000°, d 5.72g/cc. Sol in dil acids, ethanol, methanol and w (decomps with a large amt of heat being evolved). Prepn is by thermal decompn of BaCOj under high vacuum. It is a product of the burning of the many barium compds present in pyrots and, as discussed above, it is used as an anti-barrel wear additive in proplnt compns... 

V sol in acetic acid, ethanol and w. Prepn is by dehydration of propan-2-ol over Al oxide at 330°. It is also obtd as a pyrolysis product of propane and as a fraction of petr well head gases Propene has a Qc of 460.47kcal/mole the expln limits with air are 2.0 to 11.1% (Ref 2) it has an autoign temp of 927°F. Under unusual conditions, such as 955 atms press and... 

By extraction of animal lymph glands, parotid glands, pancreas, liver, milt and blood serum with diluted acetic acid-ethanol-mixtures upon removal of fat and proteins. 

Van Urk s reagent as 4-(dimethylamino)-benzaldehyde - sulfuric acid, but the experimental section incorrectly refers to a solution of 4-(dimethylamino)-benzaldehyde in hydrochloric acid/ethanol as Van Urk s reagent [1]. 

Spray the sample zone with 10% ethanolic hydro- [16] chlonc acid Then expose to the vapors of cone hydrochloric acid — ethanol (1 -I-1) in a twin-trough chamber, heat to 50 to 55 °C for 4 to 5 h, dry at 90 °C for 3 min, spray with 50% ethanolic ammonia solution and finally activate at 100°C for 5 mm Solasodine and the corresponding aglycones and sugars are produced... 

Titanium(III) ehloride (15% in 10 pereent hydrochloric acid) Ethanol (96%)... 

Cr(II) reduction of benzaldehyde in aqueous acidic ethanol also yields largely hydrobenzoin although other products were characterised, e.g. hydrobenzoin monoethyl ether, and a 1 1 stoichiometry is preserved. The rate law in ethanol acidified both with HCIO4 and HCl is complex for example, in HCl-ethanor°°,... 

Procedure 1 96 % ethanol was added to the culture medium (3 1), while continuously stirring. The precipitated polysaccharide was kept overnight at -4°C and then separated by filtration. It was washed with 70 % hydrochloric acid ethanol, then with 70 % ethanol to a neutral pH. In the end it was washed with 96 % ethanol and dried at 50°C (Sample 1). 

A 95/5 nitric acid/ethanol mixture made in error (instead of 5/95) caused it to explode. 

A technician was asked to make a 5/95 nitric acid/ethanol solution. He made a 95/5 mixture because of a misunderstanding (or a lack of clarity in the instructions given). The mixture detonated immediately. 

Acetic acid + Ethanol Ethyl acetate + water... 

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