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Ethyl Acetate

Ethyl acetate (structure shown above) is the most familiar ester to many chemistry students and possibly the ester with the widest range of uses. Esters are structurally derived from carboxylic acids by replacing the acidic hydrogen by an alkyl or aryl group. Ethyl acetate itself is a colourless liquid at room temperature with a pleasant "fruity" smell, b.p. 77°C. Ethyl acetate has many uses, such as artificial fruit essences and aroma enhancers, artificial flavours for confectionery, ice cream and cakes, as a solvent in many applications (including decaffeinating tea and coffee) for varnishes and paints (nail varnish remover), and for the manufacture of printing inks and perfumes.

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Methylene diphenyl diisocyanate (MDI)

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Propylene Oxide

It can be used as a dehydrating agent for the preparation of slides in electron microscopy. Occupational dermatitis was also reported while using a skin disinfectant swab. Chemical intermediate in preparation of polyethers to form polyurethanes; in preparation of urethane polyols and propylene and dipropylene glycols; in preparation of lubricants, surfactants, oil demulsifiers. As solvent; fumigant; soil sterilant. Propylene oxide is used as a fumigant forfoodstuffs; as a stabilizer for fuels, heat-ing oils, and chlorinated hydrocarbons; asa fuel–air explosive in munitions; and toenhance the decay resistance of wood andparticleboard (Mallari et al. 1989). Recentstudies indicate that the fumigant potentialof propylene oxide enhances at a low pres-sure of 100 mm Hg which could render it asan alternative to methyl bromide for rapiddisinfection of commodities

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Methyl Tert-butyl Ether (MTBE)

Methyl Tert-butyl Ether (MTBE) In western Europe, the second largest market for petrol in the world, concentrations of MTBE in petrol vary from 0 to 15%, depending on petrol grade, oil company, and country. As examples, 98–99 RON petrol grade (high performance, super, super plus) may typically contain 5–13% MTBE, whereas 92–95 RON grade (premium) contains 0.5–8% MTBE. The use of MTBE as an octane enhancer in the United States began in 1979. By 1990, the Clean Air Act Amendments in the United States required fuel oxygenates, such as MTBE at 15% and ethanol, to be added to petrol in some metropolitan areas heavily polluted by carbon monoxide to reduce carbon monoxide and ozone concentrations. Areas that exceeded the national ambient air-quality standard for carbon monoxide were required to use oxygenated fuels by November 1, 1992. Despite the clear benefits of using oxygenates, there have been restrictions placed on its use in many areas of the United States because of growing numbers of detections of MTBE in drinking water resulting from leaking underground petrol tanks.

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Neopentyl Glycol(NPG)

NPG Glycol is used in the synthesis of tetraphenylporphyrins. Also used in the synthesis of Bryostatin 2, a protein kinase modulator. 2,2-Dimethyl-1,3-propanediol may be used in the synthesis of: 2,2-dimethyl-1,3-propanediol cyclic phosphorochloridate 2,2-dimethyl-1,3-propanediol cyclic phenylphosphonate [1′,3′-(2′,2′-dimethylpropylene)]-2-iodo-3-octyl-5-thienylboronate cyclic carbonate 2,2-dimethyl-1,3-propanediol bis(cyclic-2,2-dimethyltrimethylene phosphite)

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Dioctyl Terephthalate

It is used primarily as a plasticizer for polyvinyl chloride and other polymers. DOTP can form a composite blend with polyaniline (PANI)-ethyene dimethacrylate (EDMA), which can be used in the fabrication of conductive films. It may also be used as a plasticizer with polyvinyl chloride (PVC) to form solutions for artificial intravessel plaque.

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Trioctyl Trimellitate(TOTM)

Used in plastic industry.

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polymethylmethacrylate(PMMA)

Acrylic prosthetic construction Artificial teeth Artistic and aesthetic uses PMMA, in the commercial form Technovit 7200 is used vastly in the medical field. It is used for plastic histology, electron microscopy, as well as many more uses. PMMA has been used to create ultra-white opaque membranes that are flexible and switch appearance to transparent when wet.[50] Acrylic is used in tanning beds as the transparent surface that separates the occupant from the tanning bulbs while tanning. The type of acrylic used in tanning beds is most often formulated from a special type of polymethyl methacrylate, a compound that allows the passage of ultraviolet rays. Sheets of PMMA are commonly used in the sign industry to make flat cut out letters in thicknesses typically varying from 3 to 25 millimeters (0.1 to 1.0 in). These letters may be used alone to represent a company's name and/or logo, or they may be a component of illuminated channel letters. Acrylic is also used extensively throughout the sign industry as a component of wall signs where it may be a backplate, painted on the surface or the backside, a faceplate with additional raised lettering or even photographic images printed directly to it, or a spacer to separate sign components. PMMA was used in Laserdisc optical media.[51] (CDs and DVDs use both acrylic and polycarbonate for impact resistance). It is used as a light guide for the backlights in TFT-LCDs.[citation needed] Plastic optical fiber used for short-distance communication is made from PMMA, and perfluorinated PMMA, clad with fluorinated PMMA, in situations where its flexibility and cheaper installation costs outweigh its poor heat tolerance and higher attenuation over glass fiber. PMMA, in a purified form, is used as the matrix in laser dye-doped organic solid-state gain media for tunable solid state dye lasers.[52] In semiconductor research and industry, PMMA aids as a resist in the electron beam lithography process. A solution consisting of the polymer in a solvent is used to spin coat sil