Monday, May 9, 2016

MEA/ MONOETHANOLAMINE


•CAS No. 141-43-5

Product Overview
• DOW™ monoethanolamine is a clear, colorless, viscous liquid. It is one of a class of organic compounds called ethanolamines. Ethanolamines combine the properties of amines and alcohols. DOW monoethanolamine is available in a variety of grades, including low freeze grade (LF, 85%) and iron and chloride free (ICF, 100%), as well as Gas Treating (GT) grades.
• DOW monoethanolamine (MEA) is primarily used in detergents, personal-care products, textile finishing, and wood treating. Other applications include use as oil-field chemicals, metal-working fluids, and catalysts that promote stability during the manufacture of flexible and rigid urethane foams.
• DOW monoethanolamine is not sold for consumer use. However, it is used in the production of products that consumers may use. The most probable exposure route is skin contact with products that contain small amounts of this material. Occupational exposure may occur by inhalation of fumes from various processes.
• Monoethanolamine can cause burns to the eyes and skin. It is harmful and corrosive if swallowed. It is also harmful if inhaled or absorbed through the skin. It can cause lung damage if aspirated, and repeated exposure may cause liver and kidney damage.
• DOW monoethanolamine is water soluble and biodegrades rapidly. It should not bioaccumulate or persist in the environment. However, large releases to wastewater-treatment facilities can result in poor treatment and toxic shock to biologically active species.
• DOW™ monoethanolamine exhibits good temperature stability, but can react exothermically (producing heat) with many other materials, including strong oxidizing agents, strong acids, strong bases, aluminum, aldehydes, ketones, acrylates, organic anhydrides, organic halides, formates, lactones, oxalates, and copper and zinc metals and alloys. It can also form an unstable crystalline complex called tris(ethanolamino)-iron when in contact with iron or steel, which can ignite when heated to 54–71°C (130–160°F) in the presence of air.

Product Description
DOW™ monoethanolamine (MEA) is a clear, thick, colorless liquid with an ammonia-like smell. It is completely soluble in water. Monoethanolamine has a freezing point of 10.5°C (51°F), so it can become a solid at ambient temperatures. Monoethanolamine is one of a class of organic compounds called ethanolamines, which combine the properties of amines and alcohols and can undergo reactions common to both groups. They can react with acids to form salts or soaps and can also form esters (sometimes used as artificial flavorings and fragrances). To avoid freezing concerns, Dow also offers grades that are mixtures with water to depress the freezing point. DOW monoethanolamine is available in an LF grade (low freeze, 85%), and an ICF grade (free of iron and chloride, 100%). DOW monoethanolamine is also available in GT grades specially formulated for gas treating applications. Monoethanolamine is a primary amine – it has one chemical group and two hydrogen atoms attached to the nitrogen atom. This affects its reactivity with other materials. See Nitrosamine Formation and Physical Hazard Information.

Product Uses
Typical uses for monoethanolamine are shown in the chart. DOW™ monoethanolamine is used in the following applications:
• Cement – to enhance strength, reduce drying time and protect against the affects of freezing and thawing
• Gas treating – for a variety of natural gas, petrochemical, and oil treatments
• Metalworking fluids – to neutralize acid components in lubricants, prevent corrosion and rusting, and for proprietary corrosion inhibitors and biocides
• Personal-care products – to make ethanolamine-based soaps for use in hand lotions, cosmetic creams, cleansing creams, shaving creams, and shampoos; also for dry-cleaning solvents and heavy-duty liquid laundry detergents
• Pharmaceuticals – as raw materials in the production of certain pharmaceuticals
• Printing inks – to control pH in the formulation of packaging and printing inks
• Textiles and textile additives – as aids to clean and scour textiles, facilitate wetting, and improve lather and ease of soap removal
• Wood treating – for wood-preservative alternatives

For any furter info please feel free to contact me.

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