Acetone formula

Formula 72 is taken from Ref 44a, p 282. NC is added in soln as binder Formula 161 and other formulas are taken from Ref 57, pp 377ff. It is designated as Starter Mixture VI" and its 60 parts are mixed with 40 parts of 4% NC soln in acetone Formula 162 "Starter Mixture" used by mixing lOOpts with 37pts of 25% of %-sec NC in ethyl acetate Formula 163 "Starter Mixture XII" used by mixing 50pts with 50pts of 4%... 

Formula 166 "Starter Mixture V for Smokes" used by mixing 70pts with 30pts of 4% NC soln in acetone Formula 167 "Starter Mixture XXV for HC Smokes" used by mixing 83.3 parts with I6.7pts of 6% NC... 

An interesting addition-isomerization reaction of acetyl acetone (Formula 218) has been reported recently (84). Irradiation of acetyl-... 

Irradiation of methoxy-acetone (Formula 254) gives acetone and formaldehyde by a 7-hydrogen transfer in which an oxygen atom makes up part of the ring (107). 

When the objective is analytical the products of ozonolysis are isolated and identi lied thereby allowing the structure of the alkene to be deduced In one such example an alkene having the molecular formula C Hig was obtained from a chemical reaction and was then subjected to ozonolysis giving acetone and 2 2 dimethylpropanal as the products... 

Arrange the isomers of molecular formula C4H9CI in order of decreasing rate of reaction with sodium iodide in acetone... 

The US. Pharmacopeia (USP XXII) or National Formula (NFXVII) (20) also provide a similar description however, the peroxide value is not defined (Table 9). These specifications are also given in the Handbook of Pharmaceutical Excipients (HPE), pubhshed jointiy by the American Pharmaceutical Association and The Pharmaceutical Society of Great Britain (21), which defines lecithins both from plants and eggs. The Merck Index (22) specifies a slightiy lower acid value. The Japanese Monograph (ISCI-II) (23) specifies a slightiy lower acetone-insoluble matter and a lower heavy-metal content. 

In petroleum and oxygenate finish removers, the major ingredient is normally acetone, methyl ethyl ketone [78-93-3], or toluene. Cosolvents include methanol, / -butanol [71-36-3], j -butyl alcohol [78-92-2], or xylene [1330-20-7]. Sodium hydroxide or amines are used to activate the remover. Paraffin wax is used as an evaporation retarder though its effectiveness is limited because it is highly soluble in the petroleum solvents. CeUulose thickeners are sometimes added to liquid formulas to assist in pulling the paraffin wax from the liquid to form a vapor barrier or to make a thick formula. Corrosion inhibitors are added to stabili2e tbe formula for packaging (qv). 

For most combinations of atoms, a number of molecular structures that differ fk m each other in the sequence of bonding of the atoms are possible. Each individual molecular assembly is called an isomer, and the constitution of a compound is the particular combination of bonds between atoms (molecular connectivity) which is characteristic of that structure. Propanal, allyl alcohol, acetone, 2-methyloxinine, and cyclopropanol each correspond to the molecular formula CjH O, but differ in constitution and are isomers of one another. 

The next most common ketone is methyl ethyl ketone, commonly referred to as MEK. Its molecular formula is CH3COC2H5. MEK has a flash point of 24°F and an ignition temperature of 960" F. It is a colorless liquid with a characteristic ketone odor. It is as widely used as acetone and is almost as hazardous. 

The importance of tropinone as a possible starting-point for the production of the therapeutically valuable alkaloids atropine, hyoscyamine, cocaine, tropacocaine and the artificial tropeines (p. 73) led Robinson to consider the possibility of preparing this substance by a simple method. Starting with the idea that the formula for tropinone (XXX) may be regarded as made up of the formulae of the residues of succindialdehyde (XXVII), methylamine (XXV III) and acetone (XXIX), he found that a mixture of these substances in water, when allowed to stand for thirty minutes produced tropinone, which could be detected by means of its characteristic dipiperonylidene derivative (bright yellow needles, m.p. 214°). 

A third form, w ooxyberberine (partial formula XII), was obtained by Pyman by the oxidation of berberineacetone (XIII) with permanganate in acetone solution. The steps in its formation are shown by... 

Phaeanthine, C3JH42O0N2. (Item 8 list, p. 350.) This alkaloid was isolated by Santos.It has m.p. 210°, [a]u°° — 278° (CHCI3), yields a hydriodide, m.p. 268°, picrate, m.p. 263°, aurichloride, m.p. 170-1°, and a platinichloride, m.p. 280° (dec.), and contains four methoxyl and two methylimino groups. By the Hofmann degradation process it yields an optically inactive methine base A, m.p. 173°, which is oxidised by potassium permanganate in acetone to 2-methoxy-5 4 -dicarboxydiphenyl ether (p. 348). A comparison of the properties of phseanthine and tetrandrine by Kondo and Keimatsu indicates that these two alkaloids are optical antipodes, so that phseanthine will be represented by either (XXXIX) or (XL) as given on p. 348, 1 and of these two formula (R = Me) one must represent oxyacanthine methyl ether and the other berbamine methyl ether (centres of asymmetry d- and 1-) tetrandrine (centres of asymmetry both d-) and phseanthine (centres of asymmetry both 1-). 

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