Isopropyl glycol

Synonyms IPE ethylene glycol monoisopropyl ether Isopropyl Cellosolve isopropyl glycol... 

Certain aliphatic aldehydes undergo a similar change. Isobutyric aldehyde, for example, is converted to isobutyric acid and di-isopropyl glycol 3(CH3)aCH.CHO + KOH = (CH8)4CH.COOK + (CH8)2CH.CHOH... 

SYNS DOWANOL EIPAT ETHYLENE GLYCOL ISOPROPYL ETHER ETHYLENE GLYCOL, MONOISOPROPYL ETHER (3-HYDROXYETHYL ISOPROPYL ETHER ISOPROPYL CELLOSOLVE ISOPROPYL GLYCOL MONOISOPROPYL ETHER of ETHYLENE GLYCOL... 

ISOPROPYL GLYCOL (109-59-1) Forms explosive mixture with air (flash point 92°F/33°C). Violent reaction with strong oxidizers. Incompatible with aliphatic amines, caustics, isocyanates, nitric acid, perchloric acid, sulfuric acid. 

Ethylene glycol mono-wo-propyl ether (2-methylethoxyethanol) EGMiPr 109-59-1 isopropyl glycol isopropyl cellosolve... 

Synonyms/Trade Names Ethylene glycol isopropyl ether, p-Hydroxyethyl isopropyl ether, Isopropyl Cellosolve , Isopropyl glycol ... 

Synonyms 2-isopropoxyethanol j6-hydroxy-ethyl isopropyl ether isopropyl glycol Isopropyl Cellosolve... 

Glycol Ethers [14.212], [14.213]. Isopropyl glycol, propyl glycol, butyl glycol, isobulyl glycol, butyl diglycol, l-methoxy-2-propanol, I-elhoxy-2-propanol, l-isopropoxy-2-propanol, 1-propoxy-2-propanol, l-butoxy-2-propanol. 

Isopropyl glycol. See Ethylene glycol isopropyl ether... 

Acetone is reduced by amalgamated magnesium largely to a bimolecu lar reduction product, tetramethylethylene glycol or plnacol (CHjjjClOHjClOHjiCHj), some isopropyl alcohol is also formed ... 

Vinyl Ethers. The principal commercial vinyl ethers are methyl vinyl ether (methoxyethene, C H O) [107-25-5], ethyl vinyl ether (ethoxyethene, C HgO) [104-92-2], and butyl vinyl ether (1-ethenyloxybutane, C H 20) [111-34-2]. (See Table 8 for physical properties.) Others such as the isopropyl, isobutyl, hydroxybutyl, decyl, hexadecyl, and octadecyl ethers, as well as the divinyl ethers of butanediol and of triethylene glycol, have been offered as development chemicals (see Ethers). 

Organic fluids also are mixed with water to serve as secondary coolants. The most commonly used fluid is ethylene glycol. Others include propjiene glycol, methanol (qv), ethanol, glycerol (qv), and 2-propanol (see Propyl alcohols, isopropyl alcohol). These solutions must also be inhibited against corrosion. Some of these, particularly methanol, may form flammable vapor concentrations at high temperatures. 

Aqueous solutions can be stabilized against viscosity loss by addition of 5—10 wt % anhydrous isopropyl alcohol, ethanol, ethylene glycol, or propylene glycol. The manganous ion (Mn " ) also is an effective stabilizer at concentrations of 10 -10 wt% of the solution. 

The DADC monomer has been copolymerized with small amounts of polyfunctional methacryflc or acryflc monomers. For example, 3% triethylene glycol dimethacrylate was used as a flexibiflzing, cross-linking agent with a percarbonate as initiator (26). CR-39 and diethylene glycol diacrylate containing isopropyl percarbonate were irradiated with a mercury lamp to a 92% conversion and then cured at 150°C (27). By a similar two-step process DADC was copolymerized with methyl methacrylate and tetraethylene glycol dimethacrylate (28). 

Glycol ethers can be prepared from isopropyl alcohol by reaction of olefin oxides, eg, ethylene oxide [75-21-8] (qv) or propylene oxide [75-56-9] (qv). Reactions such as that to produce 2-isoproxyethanol [109-59-1] (isopropyl CeUosolve) are generally cataly2ed by an alkaU hydroxide. 

Stratifying water systems for selective extraction of thiocyanate complexes of platinum metals have been proposed. The extraction degree of mthenium(III) by ethyl and isopropyl alcohols, acetone, polyethylene glycol in optimum conditions amounts to 95-100%. By the help of electronic methods, IR-spectroscopy, equilibrium shift the extractive mechanism has been proposed and stmctures of extractable compounds, which contain single anddouble-chai-ged acidocomplexes [Rh(SCN)J-, [Ru(SCN)J, [Ru(SCN)J -have been determined. Constants of extraction for associates investigated have been calculated. 

Yields of the primary alkyl acrylates vary somewhat, owing to occasional losses through formation of polymer, but are usually in the range of 85-99%. Some secondary alcohols react very slowly, others readily. The method has been applied to more than fifty alcohols, some of which (with percentage yields) are listed below ethyl, 99% isopropyl, 37% -amyl, 87% isoamyl, 95% -hexyl, 99% 4-methyl-2-pentyl, 95% 2-ethylhexyl, 95% capryl, 80% lauryl, 92% myristyl, 90% allyl, 70% fur-furyl, 86% citronellyl, 91% cyclohexyl, 93% benzyl, 81% (3-ethoxyethyl, 99% /S-(/3-phenoxyethoxy) ethyl (from diethylene glycol monophenyl ether), 88%. 

If a-phellandrene be oxidised by potassium permanganate, the principal body resulting is a-oxy-/3-isopropyl glutaric acid. If /3-phellandrene be oxidised, closely related acids result, but if a 1 per cent, solution of permanganate be used and the oxidation effected very carefully in the cold, with the terpene always in excess, a glycol, CjoHjg(OH)2, results, which when dehydrated with dilute sulphuric acid yields tetrahydro-cuminic aldehyde. 

Clark and Vermeulen (C8) measured gas holdup in three different liquids —isopropyl alcohol, ethylene glycol, and water. They measured the increase in holdup with agitation as compared to no agitation, and correlated their results as a function of the volumetric gas velocity, Weber number, P/P0, and a geometric factor. Typical volumetric gas holdup values reported in the literature vary from about 2% to 40% of the total dispersion volume (Cl, C2, C8, F2, G10). 

Sometimes a small amount of alcohol with one to three hydroxyl groups, like ethanol, isopropyl alcohol, n-butanol, or ethylene glycol, is added [33]. 

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