Industrial solvents methyl acetate

Ethyl acetate is used in production of acrylic plastics. Ethyl acetate and butyl acetate find wide usage as solvents for nitrocellulose and lacquers. Hthyl acetate is considered one of the least toxic of all industrial organic solvents. Buiyl acetate s chief industrial competitor is methyl isobutyJ ketone. Over lime, ethyl acetate and butyl acetate may suffer the same fate as methyl acetate, which hos been largely displaced by other solvents. 

NFPA Health 1, Flammability 3, Reactivily 0 Uses Industrial solvent mfg. of formaldehyde, acetic acid, dimethyl tereph-thalate, methyl esters chemical synthesis antifreeze solvent for nitrocellulose, polyvinyl butyral, shellac, rosin, manila resin, dyes, paints, waterborne coatings plastics softener denaturanL solvent in cosmetics octane booster in gasoline as fuel for picnic stoves, soldering torches extractant for animal/veg. oils extraction solvent for hops extract, spice oleoresins (foods) pharmaceutical solvent, excipient in food-pkg. adhesives in paper/paperboard in contact with dry food defoamer in food-contact coatings and paper/paperboard solvent in food-contact PRO resins... 

Uses Industrial solvent mfg. of formaldehyde, acetic acid, dimethyl terephthalate, methyl esters chemical synthesis antifreeze solvent for nitrocellulose, polyvinyl butyral, shellac, rosin, manila resin, dyes, paints, waterborne coatings plastics softener denaturant, solvent in cosmetics octane booster in gasoline as... 

Methyl acetate has a tendency to hydrolyze to give methanol and acetic acid which limits its wider use in industry. The solvent resembles acetone, particularly in boiling point, solvency and miscibility with water and other solvents. 

Transesterification is a key transformation in organic synthesis, considering its industrial as well as academic importance. The well-known transesterification catalysts, like Ti(0 Pr)4, BuSn(OH)3 or Al(OR)3 commonly involve heating ester substrates with the catalyst in an alcohol solvent at reflux conditions and require elevated reaction temperatures and acidic conditions. Compounds 1-7 were reacted with phenyl acetate and methanol at 50 °C under neutral conditions, as shown in Scheme 17.1. This reaction quantitatively formed methyl acetate within 0.9-20 days whilst a control reaction performed in absence of the complexes gave only a low conversion of the ester to the product in an identical reaction time. 

It should be noted that unlike in the EU, the US EPA uses photochemical reactivity of organic compounds as a criterion to identify an organic solvent as a VOC. The US EPA has released a list of exempt solvents that have negligible photochemical reactivity. Methyl acetate, acetone, tert-butyl acetate, dimethyl carbonate and propylene carbonate are some examples of exempt solvents important for the coating industry. Per the US EPA, VOC concentration is calculated according to the following formula and expressed as mass per unit volume ... 

A stepwise addition of methanol was the most common strategy to avoid lipase inactivation (Chen et al., 2009). Using a different acyl acceptor as methyl acetate or ethyl acetate, the lipase inactivation is also avoided (Jeong and Park, 2010). Another strategy for solving the problem of Upase inactivation by methanol is the use of organic solvents (Iso et al., 2001), but difficulties in solvent recovery make these methods less competitive at an industrial scale. 

Diacetone Alcohol. Diacetone alcohol (DAA) (4-hydroxy-4-methyl-2-pentanone) is a colorless, mild smelling Hquid which is completely miscible with water and most organic solvents. It is the simplest aldol condensation product of acetone, and because of its keto-alcohol functionahes it has special utility in the coatings industry where it is used to dissolve cellulose acetate to give solutions with high tolerance for water (115). 

Ethylene glycol in the presence of an acid catalyst readily reacts with aldehydes and ketones to form cyclic acetals and ketals (60). 1,3-Dioxolane [646-06-0] is the product of condensing formaldehyde and ethylene glycol. Applications for 1,3-dioxolane are as a solvent replacement for methylene chloride, 1,2-dichloroethane, 1,1,1-trichloroethane, and methyl ethyl ketone as a solvent for polymers as an inhibitor in 1,1,1-trichloroethane as a polymer or matrix interaction product for metal working and electroplating in lithium batteries and in the electronics industry (61). 1,3-Dioxolane can also be used in the formation of polyacetals, both for homopolymerization and as a comonomer with formaldehyde. Cyclic acetals and ketals are used as protecting groups for reaction-sensitive aldehydes and ketones in natural product synthesis and pharmaceuticals (62). 

Benzyl Alcohol Phenylmethanol or Hydroxytol-uene (called l -Oxy-T-methyl-benzol and benzyl chloride with Na or K carbonate in soln or by other methods. There are two commercial products technical grade and "FFC (free from chlorine) grade(Ref 3). Toxicity and fire hazard are discussed in Ref 5. It is used extensively in many branches of the chem industries, such as, for the manuf of esters(acetic, benzoic, sebacic, etc), as a solvent for cellulose esters ethers, etc. During WW I, it was used in a "dope for airplane fabrics... 

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