MONOETHANOLAMINE, MEA, HS CODE, CAS number, Purity > 99% of mono ethanol amine
Trade Name, ( Tên hóa chất và Viết Tắt ) : MONOETHANOLAMINE (MEA)
IUPAC name ( Danh pháp quốc tế): 2-Aminoethanol
M.E.A malay – phuy nhua – sapachemical
Molecular formular ( Công thức ) : C2H7NO
Other name (SYNONYMS) ( Tên khác – tên đồng nghĩa : 2-Amino-l-Ethanol, Ethanolamine, Monoethanolamine, β-Aminoethanol, β-hydroxyethylamine, β-Aminoethyl alcohol, Glycinol, Olamine, MEA, UN 2491
HS CODE ( mã số HS ) : 29000412
CAS No. ( mã số CAS) : 141-43-5
Purity ( Độ tinh khiết) : > 99 %
Density (Tỉ trọng ở 20C ) : 1.012 g/cm3, liquid
Packing ( Bao bì) : 210 kg/ new steel drum
Origin ( Xuất xứ) : Taiwan / China / Singapore / Korea / Malaysia / USA / India /UK/ Russia / Thailand / Japan
Manufacturer ( Nhà sản xuất) : OPTIMAL / TAT / BASF / DOW/ PETROCHEMICALS/ PETROW Chem / Shell / Exxon Mobill
=========================
Contact: Mr. Tran Hu’ng Cuong
Tel: 0907-919-331
Email: sapa_chemicals@yahoo.com
Email: thchemicals@yahoo.com
Read more at chemical – solvent list : http://www.thchemicals.blogspot.com
Applications: Ứng dụng của ethanolamine
MEA is used in aqueous solutions for scrubbing certain acidic gases. It is used as feedstock in the production of detergents, emulsifiers, polishes, pharmaceuticals, corrosion inhibitors, chemical intermediates. For example, reacting ethanolamine with ammonia gives the commonly used chelating agent, ethylenediamine:
In pharmaceutical formulations, MEA is primarily used for buffering or preparation of emulsions.
Gas stream scrubbing
Aqueous solutions of MEA (solutions of MEA in water) are used as a gas stream scrubbing liquid in amine treaters. For example, aqueous MEA is used to remove carbon dioxide (CO2) from flue gas. Aqueous solutions can weakly dissolve certain kinds of gases from a mixed gas stream. The MEA in such solutions, acting as a weak base, then neutralizes acidic compounds dissolved in the solution to turn the molecules into an ionic form, making them polar and considerably more soluble in a cold MEA solution, and thus keeping such acidic gases dissolved in this gas-scrubbing solution. Therefore, large surface area contact with such a cold scrubbing solution in a scrubber unit can selectively remove such acidic components as hydrogen sulfide (H2S) and CO2 from some mixed gas streams. For example, basic solutions such as aqueous MEA or aqueous potassium carbonate can neutralize H2S into hydrosulfide ion (HS-) or CO2 into bicarbonate ion (HCO3-).
H2S and CO2 are only weakly acidic gases. An aqueous solution of a strong base such as sodium hydroxide (NaOH) will not readily release these gases once they have dissolved. However, MEA is rather weak base and will re-release H2S or CO2 when the scrubbing solution is heated. Therefore, the MEA scrubbing solution is recycled through a regeneration unit, which heats the MEA solution from the scrubber unit to release these only slightly acidic gases into a purer form and returns the regenerated MEA solution to the scrubber unit again for reuse.
pH – control amine
Ethanolamine is often used for alkalinization of water in steam cycles of power plants, including nuclear power plants with pressurized water reactors. This alkalinization is performed to control corrosion of metal components. ETA (or sometimes a similar organic amine, e.g., morpholine) is selected because it does not accumulate in steam generators (boilers) and crevices due to its volatility, but rather distributes relatively uniformly throughout the entire steam cycle. In such application, ETA is a key ingredient of so-called “all-volatile treatment” of water (AVT).
Posted by Tran hung Cuong
=================================================
Nguồn Chemical-Blog: http://www.thchemicals.blogspot.com
http://en.wikipedia.org/wiki/Toluene
=================================================
1/ HÀNG HÓA LUÔN LUÔN CÓ SẴN TRONG KHO.
2/ NGUYÊN LIỆU ĐA DẠNG – GIÁ CẠNH TRANH.
3/ GIAO HÀNG TRÊN TOÀN QUỐC.
4/ MUA SỐ LƯỢNG LỚN – MỜI THƯƠNG LƯỢNG TRỰC TIẾP..
=============@@@@@@@@@@@@@===============
Contact:
Full name: TRẦN HƯNG CƯỜNG (Mr)
- Tel: +84 909.919.331 /// +84 907.919.331
Hiện nay, trên Internet có nhiều việc sao chép thông tin rao vặt mua bán cũng như những bài viết về sản phẩm Hóa chất – Dung môi của chúng tôi tại Chemicals Blog : http://thchemicals.blogspot.com. Rất mong Quý khách xem xét kỹ thông tin trước khi mua hàng, nhằm tránh bị lừa đảo và mất thời gian quý báu của khách hàng.
sapacovn
