Iso-propyl methyl ketone

The slow combustion of this fuel has been studied at 310 and 400 °C, these temperatures being representative of the low and h temperature regimes [46]. 

At 310 °C, the pressure—time curves were of an unusual shape initially the rate of pressure rise accelerated smoothly and exponentially to a maximum which was sustained for some time before reaction ceased abruptly. Individual product-H ime curves showed similar behaviour. The primary products included hydrogen peroxide, formaldehyde, carbon dioxide, acetone, acetaldehyde and 1 2-epoxypropane. 

At 400 °C, the pressure-time curves were S-shaped and propene was a much more important product hydrogen peroxide and formaldehyde production was also increased. 

Reactions of the ketonyl and ketonylperoxy radicals, e.g. CH3C0C(CH3)2 and CH3COC(CH3 )2, can be written to account for all 

The limits for cool flame propagation in an equimolar ketone—oxygen mixture are shown in Fig. 5. 

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Methyl iso-Propyl Ketone (13, 68) In 80 per cent yields by hydrolysis of 2,3-dibromo-2-methylbutane with Twitchell s reagent. Colonge, Bull. soc. chim. (5) 3, (1936). 

Fig. 5. The cool flame limit curves of equimolar ketone—oxygen mixtures in an HF treated spherical pyrex vessel, diameter = 10.1 cm [45], (1) Acetone (2) methyl iso-propyl ketone (3) methyl ethyl ketone (4) methyl n-propyl ketone (5) diethyl ketone.

This ketone is unique amongst those studied in that it apparently exhibits no region of negative temperature coefficient of the rate and no cool flames have been observed [45]. The pressure—time curves were similar to those of methyl iso-propyl ketone at 310 °C, the reaction accelerating smoothly and then stopping suddenly [46]. Analyses of the combustion products have been made at various stages of the reaction at 270, 310 and 350 °C. Carbon monoxide, carbon dioxide, hydrogen peroxide, iso-butene-1 2-oxide, methanol, methyl ethyl ketone and acetaldehyde were all detected, and towards the end of the reaction iso-butene and methane were also formed. 

Di-methyl aceto acetic ester Methyl iso-propyl ketone... 

Trimethylethylene dibromide has been obtained by adding bromine to trimethylethylene and to tertiary amyl alcohol. Methyl iso-propyl ketone has been prepared by heating trimethylethylene glycol (2-methyl-2,3-dihydroxybutane) with dilute hydrochloric acid, by heating trimethylethylene chloro-hydrin (2-methyl-2-hydroxy-3-chlorobutane) in a sealed tube with water, by boiling trimethylethylene dibromide with lead oxide (PbO) and water, by heating trimethylethylene dibromide with water, by the action of iso-propylmagnesium bromide on acetic anhydride, and by a variety of other methods not particularly related to the one here described. ... 

To the reaction flask containing the crude trimethylethylene dibromide is added 540 cc. of water, and the flask is fitted with a long reflux condenser and a mercury-sealed stirrer (Notes 3 and 4). The mixture is refluxed with stirring for three to five hours until hydrolysis is practically complete (Note 5). The reflux condenser is then replaced by a condenser for distillation, and the crude methyl iso-propyl ketone is removed from the reaction mixture by direct distillation, with stirring, until the temperature rises (Note 6) and the oil nearly stops coming over (about one and one-half hours), or until the oil coming over is heavier than water. The residue in the flask can be distilled to yield about 380 cc. of constant-boiling hydrobromic acid. 

Di-n-hexyl ketone Methyl ethyl ketone Methyl n-propyl ketone Methyl iso-propyl ketone Methyl n-butyl ketone Methyl iso-butyl ketone Methyl n-amyl ketone Methyl n-hexyl ketone Chloroacetone. ... 

W1 - P. W. West and J. K. Carlton, "The Extraction of Lead Iodide by Methyl Iso-Propyl Ketone", Anal. Chlm. Acta 6, 4o6 (I952). W2 - T. S. West, "Liquid-Liquid Extraction Procedures In Inorganic Analysis. A Review of Practical Applications With Particular Reference to Metallurgical Analysis", Metallurgia... 

Pentanone, see Methyl n-propyl ketone 3- Pentanone, see Diethyl ketone Pentene, see Amylene n-Pentyl acetate, see n-Amyl acetate sec-Pentyl acetate, see sec-Amyl acetate Pentyl alcohol, see n-Amyl alcohol Pentyl amine, see n-Amylamine iso-Pentyl nitrite, see Amyl nitrite Peracetic acid (40% acetic acid 1.23 41... 

Figure 8-7. Correlation between equilibrium constant for esterification and solubility of water in the solvent. Equilibrium constant was defined as [Ester]/([Alcohol].[Acid]), for reactions at fixed water activity (close to 1). Solvents are bb, butyl benzoate be, bromoethane bk, dibutyl ketone bp, dibutyl phthalate bz, benzene ca, 1,1,1-trichloroethane cf, chloroform ct, carbon tetrachloride cy, trichloroethylene ee, ethyl ether ek, diethyl ketone ep, diethyl phthalate hd, hexadecane hx, hexane me, methylene chloride mk, methyl iso-butyl ketone nm, nitromethane oc, /so-octane pe, iso-propyl ether tl, toluene. Valivety et al...

The products of methyl n-hexyl ketone oxidation are capronic and acetic acids, capronic aldehyde, and diketone (130°C) [126], The hydroperoxide formed by the oxidation of di-iso-propyl ketone is relatively stable [127]. Decay of hydroperoxide produces acetone and isobutyric acid... 

Methyl benzoate, 10, 57 13, 86 Methyl chloride, 10, 32, 36 Methyl chloroformate, 13, 100 Methyleneaminoacetonitrile, 14, 46 Methylene bromide, 10, 112 Methyl ethyl ketone, 10, 23 Methyl ethyl ketoxime, 11, 59 5-Methylfurfural, 14, 62 a-Methyl-d-glucoside, 10, 112 Methyl iodide, 13, 60 Methyl Iso-propyl carbinol, 12, 48 ... 

Diazomethane (15, 3) Diazomethane and its homalogs are prepared by the action of sodium fjo-proporide in iso-propyl alcohol upon the products of nitrosation from /9-alkylamino-iso-butyl methyl ketones (obtained by adding the amine to mesityl oxide). Adamson and Kenner, J. Chem. Soc. 193s, 286. 

Oxidation of iso-propyl methyl ketone at 70—130° C produces methanol, acetone, acetic acid and isopropyl acetate [128], Koslenkova et al. [129] have studied the oxidation of higher aliphatic ketones (Ctl C13). 

Acetone (CH 3 CO.CH 3 ), or dimethyl ketone, is formed when iso-propyl alcohol is oxidised with potassium bichromate and sulphuric. It is also produced in eonsiderable quantities during the dry distillation of wood, and many other organie compounds. Cmde wood spirit, which has been freed from acetic acid, consists in the main of a mixture of acetone and methyl- alcohol. The two substances may be roughly separated by the addition of ealeium chloride, whieh eombines with the methyl-alcohol. On subsequent distillation crude aeetone passes over, and may be purified by conversion into the bisulphite compound. 

Aoetylderivat des Methyl-[a-iso= nitr -propyl]-keton-8emicarbazon8 3, 111. 

Methyl Propyl Ketone (cont) 20 9 Resistant tensile strength at yield and elongation at break unchanged Test specimen IB according to ISO 527-2 Lupolen Basell Specimen 50X25X1 mm... 

Caustic soda solution (3) Caustic soda solution (3) Caustic soda solution (3) Caustic soda solution (3) Caustic soda solution (3) Methyl ethyl ketone (8) Methyl isobutyl ketone (8) Palm oil (13) Perchloroethylene (5) Propyl acetate (iso-, n-) (13)... 

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