dvr Mono Ethanol Amine MEA

Monoethanolamine Mea supplier and stockist. MEA is A clear, water-white, hygroscopic liquid with a mild ammoniacal odor.

RXSOL brand MEA iron and chloride free grade and Purity wise doen't contains <= 1 ppm chloride, <= 0.5% pm iron. Absolutely free from impurities makes PURE MEA to absorbe more CO2. On the other hand Purity of MEA optimizing CO2 absorption properties.
MSDS and Technical Product data sheet available directly online…

Technical Specifications:

 Appearance Clear and substantially free of suspended matter  

Test Description 

Specification Limits 

Min. Max. 

Unit  of Measure 

Test  Method 

Mono ethanol amine

99.0

%(w/w)

ASTM D-2073/ 2074

Water Content

0.2

%(w/w)

ASTM D-1364

Colour, pt-Co

10

ASTM D-1209

Sp.Gr. at 20/20oC

1.017

1.019

Distillation

IBP ( Boilling Point )

168

oC

ASTM D-1078

DP

174

oC

ASTM D-1078

 

FREEZING POINT: 10 – 11  DEG.C
SOLUBILITY IN WATER: 100 % – WATER, WT % : 0.3 MAX 
MOLECULAR WEIGHT: 61 – 62.5 g/mol

Uses of Amines enhance strength in cement and reduce drying time. 

Ethanolamines are used in heavy-duty liquid laundry detergents, providing a reserve alkalinity to the laundry bath, essential to efficient cleaning. Thealkanolamines neutralize fatty acids present in oily soil components converting them to amine soaps and are effective soil anti-deposition agents.

Ethylenediamine (EDA) is used in fungicides for prevention of mildew, scab, rust and blight. 

Monoethanolamine (MEA) is used as a pH control agent in the formulation of packaging and printing inks.

Triethanolamine (TEA) is used in ‘down hole’ oil wells to prevent corrosion of drilling equipment.

Ethanolamines are used in herbicide formulations and as chemical intermediates for molluscide, fungicides and algaecide products for Agriculture.

Application:

MEA is usfull products fo Gas-scrubbing agent for the absorption and removal of H2S and CO2 ( Acidic Odor ), And MEA have large field of application as detergent, Fabric Softner, Wood Treating agent etc..

BIODEGRADABILITY AND ENVIRONMENTAL SAFETY Monoethanolamine undergoes moderate biodegradation and is not expected to be persistent in the environment.

Using Procedure:

MEA play important role in Detergents imparts a reserve alkalinity to the laundry bath, which is essential to efficient cleaning.  MEA is an effective oil and anti-redeposition agent. 

Fatty acids neutralized with MEA are used as emulsifiers for oil-in water emulsions such as gel-type industrial hand cleaners, aerosol shave creams, and hand and body lotions. 

Textile Finishing  
MEA is used as reaction intermediates for the preparation of durable press fabric finishes and softeners. %u2022 When reacted to form amine soaps, useful as scouring agents for wool and silk because of its low alkalinity. %u2022 Because it is hygroscopic, MEA is used in the preparation of vat printing pastes. 

Wood Treating 

MEA is used in both alkaline copper quaternary (ACQ) and copper azole formulations for treating wood to improve its resistance to pests and decay. Both are arsenic-free alternatives to the phased-out CCA formulations.

Note:

If RXH is not acid enough to release a proton at alkaline pH, as it is the case with amines, then the reaction has to be carried out in two steps. During the first step the first EO mole is added at acid pH, so that the amine is transformed in ammonium. The reaction produce the mono-, di- and tri-ethanol amines. 

Proton release from ammonium NH4+ %u2192 NH3 + H+ (here RX- is NH3) Then, the three condensation reactions: 

 

NH3 + EO %u2192 NH2CH2CH2OH (mono-ethanol amine MEA) 
NH2CH2CH2OH + EO %u2192 NH(CH2CH2OH)2 (di-ethanol amine DEA) 
NH-(CH2CH2OH)2 + EO %u2192 N(CH2CH2OH)3 (tri-ethanol amine TEA) 

With an alkyl amine, first the alkyl ammoniumion is formed and it is deprotonated: 

RNH3+ %u2192 RNH2 + H+ (here RX- is RNH2)
RNH2 + EO %u2192 RNH-CH2CH2OH (mono-ethanol alkyl amine) 
RNH-CH2CH2OH + EO %u2192 RN(CH2CH2OH)2 (di-ethanol alkyl amine) 

Once the ethanol amine is attained, the EO polycondensation is carried out at alkaline pH as previously. In many instance the first ethoxylation is stopped when the monoethanol alkyl amine is formed in order to avoid the polycondensation in more than one chain. 

Note: This article uses material from the http://rxmarine.com/