PRODUCTS

N-METHYLDIETHANOLAMINE (MDEA)

N-Methyldiethanolamine (MDEA) is used in coatings production, acting as a stabilizing agent
N-Methyldiethanolamine (MDEA) is used manufacture of pharmaceuticals and surfactants, as an intermediate
N-Methyldiethanolamine (MDEA) is used in chemical industry processes, for neutralization and absorption tasks.

CAS Number: 105-59-9
EC Number: 203-312-7
MDL number: MFCD00002848
Molecular Formula: C5H13NO2 / CH3N(C2H4OH)2
Molecular Weight: 119.16 g/mol

SYNONYMS:
METHYL DIETHANOLAMINE, MDEA, N-Methyl Diethanolamine, N. N-bis（ β- Hydroxyethyl) methylamine, N. N-Diethanolamine, 2,2 '- (methylimine) diethanol, Methylamino diethanol, Ethanol, 2,2'-(methylimino)bis-, Ethanol, 2,2'-(methylimino)di-, Bis(2-hydroxyethyl)methylamine, Diethanolmethylamine, Methylbis(2-hydroxyethyl)amine, Methyliminodiethanol, N-Methyldiethanolamine, N-Methylimino-2,2'-diethanol, N-Methyliminodiethanol, N,N-Bis(2-hydroxyethyl)methylamine, 2,2'-(Methylimino)diethanol, N-Methyl-2,2-iminodiethanol, N-Methyl-2,2'-iminodiethanol, USAF DO-52, 2-(N-2-Hydroxyethyl-N-methylamino)ethanol, MDEA, N-Methylaminodiglycol, N-Methyldiethanolimine, Eve, MDEA (diol), N-(2-Hydroxyethyl)-N-methylethanolam, MDEA, METHYL DIETHANOLAMINE, Methyldiethanolamin, Methyliminodiethanol, FC MDEA, usafdo-52, USAF DO-52, Mdea (diol), Diethanolmethylamine, N-Methyldiethanolamin, 2,2′-Methyliminodiethanol, N,N-Bis(2-hydroxyethyl)methylamine, MDEA, N-Methyldiethanolamine, Methyldiethanolamine, 2,2'-(Methylimino)diethanol, Methyl diethanolamine, Ethanol, 2,2'-(methylimino)bis-, N-Methylaminodiglycol, N-Methyliminodiethanol, N-Methyl-2,2'-iminodiethanol, N-Methyldiethanolimine, Diethanolmethylamine, Methyliminodiethanol, Bis(2-hydroxyethyl)methylamine, Methylbis(2-hydroxyethyl)amine, N,N-Bis(2-hydroxyethyl)methylamine, Ethanol, 2,2'-(methylimino)di-, N,N-Di(2-hydroxyethyl)-N-methylamine, 2-(N-2-Hydroxyethyl-N-methylamino)ethanol, MDEA (diol), Bis(hydroxyethyl)methylamine, 2-[2-hydroxyethyl(methyl)amino]ethanol, N-methyl diethanolamine, Bis(2-hydroxyethyl) methyl amine, N-Methylimino-2,2'-diethanol, 2-[(2-hydroxyethyl)(methyl)amino]ethan-1-ol, 2-Hydroxy-1-[(2-hydroxyethyl)methylamino]-ethyl, Ethanol, 2'-(methylimino)di-, Ethanol, 2'-(methylimino)bis-, N-methyl-diethanolamine, bis-(Hydroxyethyl)methylamine, n-methyldiethanolamin, methyl diethanol amine, AMINO ALCOHOL MDA, di(hydroxyethyl)methylamine, N-Methyl-2,2-iminodiethanol, N-Methyldiethanolamine, 99%, N-Methyldiethanolamine, >=99%, 2,2'-(Methylimino)bis(ethanol), 2,2'-(Methylazanediyl)bis(ethan-1-ol), N-(2-Hydroxyethyl)-N-methylethanolamine, n-methyl-n,n-bis(2-hydroxyethyl)amine, Ethane, 1-hydroxy-2-(2-hydroxyethylmethyl)amino-, Ethane, 1-hydroxy-2-(2-hydroxyethyl-N-methyl)amino-, MDEA amine, CAS 105-59-9, EC 203-312-7, UNII-3IG3K131QJ, RefChem 163819, DTXSID8025591, DTXCID605591, NSC-11690, MFCD00002848, CCRIS 4843, BRN 1734441, SCHEMBL17605, SCHEMBL147480, SCHEMBL430016, CHEMBL3185149, SCHEMBL10360838, Tox21_201199, MSK157091, STL281951, AKOS009031354, AT34020, FB18727, NCGC00248955-01, NCGC00258751-01, LS-13102, DB-297071, M0505, NS00004394, InChI=1/C5H13NO2/c1-6(2-4-7)3-5-8/h7-8H,2-5H2,1H, N,N-Di(2-hydroxyethyl)-N-methylamine, NSC 11690, MDEA, Methyl Diethanolamine, METHYL DIETHANOLAMINE, N-METHYLDIETHANOLAMINE, N-Methyldiethanolamine, N-Methyl Diethanolamine, N-Methylediethanolamine, 2,2-Methyliminodiethanol, 2,2-(Methylimino)Diethanol, N-METHYL-2,2'-IMINODIETHANOL, BIS(2-HYDROXYETHYL)METHYLAMINE, N-METHYL-2,2-IMINOBIS(ETHANOL), N,N-BIS(2-HYDROXYETHYL)METHYLAMINE, N-METHYL-N-(2-HYDROXYETHYL)-2-AMINOETHANOL, 2-hydroxy-N-(2-hydroxyethyl)-N-methylethanaminium, 2,2′-Methyliminodiethanol, N-Methyl-2,2′-iminodiethanol, N-Methyldiethanolamine (N-MDEA), N,N-Bis(2-hydroxyethyl)methylamine, N,N-Diethanolmethylamine, N–MDEA, METHYL DIETHANOLAMINE (INCI), Methyllimino, Methylamine, Ethanol, 2,2'-(methylimino)bis-

N-Methyldiethanolamine (MDEA) is a colorless to yellow liquid tertiary amine compound with an ammonia-like odor.
N-Methyldiethanolamine (MDEA) is completely soluble in water and a very versatile intermediate that is used in a variety of applications.
N-Methyldiethanolamine (MDEA) is a colorless liquid.

N-Methyldiethanolamine (MDEA) is a colorless to yellow liquid tertiary amine compound with an ammonia-like odor.
N-Methyldiethanolamine (MDEA) is completely soluble in water.
N-Methyldiethanolamine (MDEA) is an organic compound with the chemical formula C₅H₁₃NO₂.

N-Methyldiethanolamine (MDEA) is a colourless to yellow liquid with an ammonia-like odour and is completely soluble in water.
N-Methyldiethanolamine (MDEA) is typically produced by the ethoxylation of methylamine using ethylene oxide.
N-Methyldiethanolamine (MDEA) is a dihydroxy functional tertiary amine.

N-Methyldiethanolamine (MDEA) is a versatile intermediate with a variety of applications.
N-Methyldiethanolamine (MDEA) is a colorless to yellow liquid tertiary amine compound with an ammonia-like odor.
N-Methyldiethanolamine (MDEA) is completely soluble in water and a very versatile intermediate that is used in a variety of applications.

Methyl Diethanolamine (N-Methyldiethanolamine (MDEA)) is a clear, colorless liquid with a mild amine odor.
N-Methyldiethanolamine (MDEA) is a tertiary amine that is soluble in water and many organic solvents, making it highly versatile for use in a variety of industrial applications.

One of the key properties of N-Methyldiethanolamine (MDEA) is its ability to selectively remove hydrogen sulfide (H₂S) from gas streams while leaving carbon dioxide (CO₂) largely unaffected, making it a popular choice in natural gas sweetening.
N-Methyldiethanolamine (MDEA)'s low regeneration heat requirement compared to similar amines offers significant energy savings in gas treatment applications, making it a more efficient and cost-effective solution.

N-Methyldiethanolamine (MDEA) is more efficient absorber then MEA & DEA for sulphur contains impurity and acid gases found in natural gas processing.
N-Methyldiethanolamine (MDEA) is a solvent which exhibits excellent property of selectively removing H2S gas.

N-Methyldiethanolamine (MDEA) exhibits good solubility in water & ethanol and scarcely soluble in ether.
N-Methyldiethanolamine (MDEA) is recommended for coating applications.
N-Methyldiethanolamine (MDEA) may be employed in the following studies: Synthesis of aluminophosphate-based molecular sieves.

N-Methyldiethanolamine (MDEA) is used preparation of N-methyl-N-R-N,N-bis(2-hydroxyethyl) ammonium bromides.
N-Methyldiethanolamine (MDEA) is used preparation of cationic polyurethane dispersions.
N-Methyldiethanolamine (MDEA) is a colorless to yellow liquid tertiary amine compound with an ammonia-like odor.

N-Methyldiethanolamine (MDEA) is completely soluble in water.
N-Methyldiethanolamine (MDEA) is a tertiary amine.
N-Methyldiethanolamine (MDEA) is a versatile, polyfunctional molecule that combines the characteristics of amines and alcohols.

N-Methyldiethanolamine (MDEA) is an organic compound characterized by its chemical formula CH3N(C2H4OH)2.
Exhibiting properties of a tertiary amine, N-Methyldiethanolamine (MDEA) is a colorless liquid that carries an ammonia-like odor.
Due to its affinity for water, ethanol, and benzene, N-Methyldiethanolamine (MDEA) is highly miscible with these substances, making it a versatile compound in various industrial applications.

In the chemical industry, N-Methyldiethanolamine (MDEA) is valued predominantly for its role as a sweetening agent.
N-Methyldiethanolamine (MDEA) is widely employed in processes such as chemical refining, syngas production, and natural gas treatment.
The objective of sweetening is to remove acid gases from gas streams, which allows for the purification of these products for further use or sale.

Unlike some other amines, N-Methyldiethanolamine (MDEA) does not readily react with certain sulfur compounds like COS and CS2, preventing solution loss and enabling more efficient gas treatment processes.
Biodegradation of N-Methyldiethanolamine (MDEA) has been observed under specific conditions.

Though N-Methyldiethanolamine (MDEA) does not break down readily within a typical 28-day period in activated sludge, studies have shown that in a continuous-flow experiment where the inoculum is given sufficient time to acclimate, degradation can exceed 96% after 40 days.
This indicates that biodegradation can play a substantial role in the environmental fate of N-Methyldiethanolamine (MDEA), although it is largely dependent on the presence of acclimated conditions.

N-Methyldiethanolamine (MDEA) is a type of alkanolamine used in processes to absorb hydrogen sulfide and carbon dioxide from other gases.
N-Methyldiethanolamine (MDEA) is particularly effective when the gas stream has a low ratio of H2S to CO2, allowing for the concentration of H2S in the acid gas effluent.

N-Methyldiethanolamine (MDEA) and some formulated N-Methyldiethanolamine (MDEA) products have significant selectivity toward H2S relative to CO2, allowing for the removal of most of the H2S while some of the CO2 "slips" through with the gas.
N-Methyldiethanolamine (MDEA) is a clear, Colorless or Pale Yellow liquid with Ammonical Odor.

N-Methyldiethanolamine (MDEA) is miscible with water, alcohol and benzene.
N-Methyldiethanolamine (MDEA) is also known as a N-Methyl Diethanolamine.
N-Methyldiethanolamine (MDEA) can be modified with the help of some additives, the product is known as an activated Methyl Diethanolamine.

N-Methyldiethanolamine (MDEA)'s popularity as a solvent for gas treating stems from several advantages it has when compared to other alkanolamines.
One of these advantages is a low vapor pressure, which allows for high amine compositions without appreciable losses through the absorber and regenerator.

N-Methyldiethanolamine (MDEA) is also resistant to thermal and chemical degradation and is largely immiscible with hydrocarbons.
N-Methyldiethanolamine (MDEA) is a common base note in perfumes to allow the fragrance to last.
Lastly, N-Methyldiethanolamine (MDEA) has a relatively low heat of reaction with hydrogen sulfide and carbon dioxide, which allows for lower reboiler duties, thus lower operating costs.

N-Methyldiethanolamine (MDEA) is versatile bifunctional molecules compound that combines the characteristic of Amine and hydroxyl group.
So, during the reaction N-Methyldiethanolamine (MDEA) behaves like Alcohol and Amine Group but Amine group usually exhibits the greater activities.

N-Methyldiethanolamine (MDEA) is an organic chemical compound from the group of amines and alcohols ( alkanolamines ).
Methyldiethanolamine, also known as N-methyl diethanolamine and more commonly as N-Methyldiethanolamine (MDEA), is the organic compound with the formula CH3N(C2H4OH)2.

N-Methyldiethanolamine (MDEA) is a colorless liquid with an ammonia odor.
N-Methyldiethanolamine (MDEA) is miscible with water, ethanol and benzene.

USES and APPLICATIONS of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is widely used in oil field gas and gas desulphurization purification of emulsifier and acidic gas absorption agent, ph control agent, polyurethane foam catalyst.
N-Methyldiethanolamine (MDEA) is used for gas sweetening, specifically for the selective removal of H2S

N-Methyldiethanolamine (MDEA) can also be used as a pesticide, emulsifier, fabric additives of semi-finished products, antitumor drug intermediates and amino formic acid ester of hydrochloric acid nitrogen mustard coating catalyst, fiber additives, etc., at the same time, also is a kind of paint drying agent.

N-Methyldiethanolamine (MDEA)is heavily used as a gas-treating agent, as an intermediate for textile softeners in home care formulations and as an epoxy curing agent.
N-Methyldiethanolamine (MDEA) serves a critical role in various industrial processes due to its chemical properties as a tertiary amine with two hydroxyl groups.

Chemical Synthesis: Its reactivity with acid chlorides and carbon dioxide allows N-Methyldiethanolamine (MDEA) to be used as an intermediate in the synthesis of various organic compounds.
N-Methyldiethanolamine (MDEA) is used in coatings production, acting as a stabilizing agent

N-Methyldiethanolamine (MDEA) is used manufacture of pharmaceuticals and surfactants, as an intermediate
N-Methyldiethanolamine (MDEA) is used in chemical industry processes, for neutralization and absorption tasks
Gas sweetening uses of N-Methyldiethanolamine (MDEA): Intermediates in the manufacture of corrosion inhibitors, emulsifiers, surfactants, textile chemicals, pesticides and due intermediates.

N-Methyldiethanolamine (MDEA) is widely used as a decarbonizer and Sweating agent in chemical, oil refinery, Gas synthesis, Natural gas & gas.
Applications of N-Methyldiethanolamine (MDEA): Urethanes, Paper Chemicals, Textile Softners, Pharmaceuticals, Gas scrubbing (CO2, H2S removal in natural, refining gas, ammonia hydrogen unit), Dyes and Polyurethane

N-Methyldiethanolamine (MDEA) is widely used in various industries due to its unique chemical properties, including its ability to act as a solvent, emulsifier, and pH regulator.
N-Methyldiethanolamine (MDEA) is a reagent used for protection of boronic acids as N-methyl-O,O-diethanolamine esters.

N-Methyldiethanolamine (MDEA) is used as an intermediate in the synthesis of numerous products.
N-Methyldiethanolamine (MDEA)'s unique chemistry has resulted in its use in diverse areas, including coatings, textile lubricants, polishes, detergents, pesticides, personal-care products, pharmaceuticals, urethane catalysts, and water-treatment chemicals.

N-Methyldiethanolamine (MDEA) is also used in absorption of acidic gases, catalyst for polyurethane foams, pH control agent.
Uses of N-Methyldiethanolamine (MDEA): Pharmaceuticals, Water treatment, Fabric treatment, Coatings, and Gas treatment.
Foams and Elastomers: N-Methyldiethanolamine (MDEA) can be used as a chain extender during the synthesis of polyol-based polyurethane foams and elastomers.

Metal Working: In metal working fluids, N-Methyldiethanolamine (MDEA) is used both as a pH buffer as well as an anticorrosion additive.
Textiles: N-Methyldiethanolamine (MDEA) forms quat salts with fatty acids which then find application in fabric softener formulations.
N-Methyldiethanolamine (MDEA) is heavily used as a gas-treating agent, as an intermediate for textile softeners in home care formulations and as an epoxy curing agent.

Applications of N-Methyldiethanolamine (MDEA): Urethanes, Paper Chemicals, Textile Softners, Pharmaceuticals, Gas scrubbing (CO2, H2S removal in natural, refining gas, ammonia hydrogen unit), Dyes and Polyurethane
N-Methyldiethanolamine (MDEA) is a new type of solvent with excellent performance for selective desulfurization and decarbonization, which has the advantages of high selectivity, low solvent consumption, significant energy-saving effect, and not easy to degrade.

N-Methyldiethanolamine (MDEA) is widely used as desulfurization and purification emulsifier for oil field gas and gas, as well as acid gas absorbent, acid base control agent and polyurethane foam catalyst.
N-Methyldiethanolamine (MDEA) can remove carbon dioxide from synthetic ammonia with the participation of activators, so it has been gradually promoted in the absorption of carbon dioxide in flue gas in recent years.

In addition, N-Methyldiethanolamine (MDEA) can also be used as a semi-finished product of insecticides, emulsifiers, fabric additives, an intermediate of anti-tumor drug nitrogen mustard hydrochloride, a catalyst for amino acid ester coatings, fiber additives, etc.
N-Methyldiethanolamine (MDEA) is also a drying agent for paints.

N-Methyldiethanolamine (MDEA) is a new solvent with excellent performance for selective desulfurization and decarburization.
N-Methyldiethanolamine (MDEA) has the advantages of high selectivity, less solvent consumption, remarkable energy saving effect, and not easy to degrade.

N-Methyldiethanolamine (MDEA) is widely used in oil gas and gas desulfurization purification emulsifier and acid gas absorbent, acid-base control agent, polyurethane foam catalyst.
The carbon dioxide in synthetic ammonia can be removed with the participation of an activator, so that N-Methyldiethanolamine (MDEA) has been gradually promoted in the absorption of carbon dioxide in flue gas in recent years.

In addition, N-Methyldiethanolamine (MDEA) can also be used as pesticides, emulsifiers, semi-finished products of fabric additives, intermediates of antineoplastic drug hydrochloric acid nitrogen mustard, catalyst of carbamate coatings, it is also a drying accelerator for paint.
N-Methyldiethanolamine (MDEA) is capable of undergoing reactions typical of both alcohols and amines, forming Quaternary amine salts, soaps, and esters.

This makes N-Methyldiethanolamine (MDEA) a useful intermediate in the synthesis of numerous products, and has resulted in its use in many diverse areas, including coatings, textile lubricants, polishes, detergents, pesticides, personal care products, and pharmaceuticals.
Uses of N-Methyldiethanolamine (MDEA): Pharmaceuticals, Water treatment, Fabric treatment, Coatings, and Gas treatment.

N-Methyldiethanolamine (MDEA) is widely used as a decarbonizer and Sweating agent in chemical, oil refinery, Gas synthesis, Natural gas & gas.
N-Methyldiethanolamine (MDEA) is more efficient absorber then MEA & DEA for sulphur contains impurity and acid gases found in natural gas processing.

Textiles : N-Methyldiethanolamine (MDEA) is used in manufacturing of softener, soap emulsifying agent, Lubricants, Paraffin Emulsion and dyes.
Pharmaceuticals use of N-Methyldiethanolamine (MDEA): In synthesis of analgesics and the intermediate product for some products.
Gas absorbent uses of N-Methyldiethanolamine (MDEA): Purifies the gases particularly natural gas for the bulk removable of Carbon Dioxide and also used as a scrubbing and extracting agent in Gas treatment.

Catalyst use of N-Methyldiethanolamine (MDEA): Effective catalyst for urethane and epoxy resin coating system.
Formulators : N-Methyldiethanolamine (MDEA) is used in lubricating oil, hydraulic fluids, corrosion inhibitor, refractory binder, surface active agent, solvent in water paint formula, Herbicides, Pesticides formulation and for PH control.

N-Methyldiethanolamine (MDEA) is mainly used as an emulsifier and an absorbent of acid gas, and is also used as an intermediate for antitumor drugs.
N-Methyldiethanolamine (MDEA) is mainly used as emulsifier and acid gas absorbent, acid-base control agent, polyurethane foam catalyst.

N-Methyldiethanolamine (MDEA) is also used as an intermediate of the antitumor drug nitrogen hydrochloride and the like.
N-Methyldiethanolamine (MDEA) exists as an air-sensitive, colorless liquid and is used as a catalyst in polyurethane synthesis and as a chemical intermediate in the production of textile auxiliaries, dyes, insecticides, pharmaceuticals, and emulsifiers.

N-Methyldiethanolamine (MDEA) is also used as an absorbent in the gas scrubbing of acid gas ( amine scrubbing ).
As a suitable absorber for subsequent CO 2 separation, N-Methyldiethanolamine (MDEA) has the advantage, along with other amines, of separately absorbing CO 2, particularly in the direct air capture process.

A tertiary amine, N-Methyldiethanolamine (MDEA) is widely used as a sweetening agent in chemical, oil refinery, syngas production and natural gas.
Similar compounds are monoethanolamine (MEA), a primary amine, and diethanolamine (DEA), a secondary amine, both of which are also used for amine gas treating.
N-Methyldiethanolamine (MDEA)'s defining characteristic when compared to these other amines is its ability to preferentially remove H2S (and strip CO2) from sour gas streams.

-Gas Treatment and Acid Gas Removal uses of N-Methyldiethanolamine (MDEA):
One of the primary uses of N-Methyldiethanolamine (MDEA) is in natural gas processing and refinery operations.
N-Methyldiethanolamine (MDEA) is commonly used in amine gas treating systems to remove hydrogen sulfide (H₂S) from natural gas streams while leaving CO₂ largely unaffected.
This selective absorption makes N-Methyldiethanolamine (MDEA) ideal for gas sweetening in the oil and gas industry.

-Coatings use of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) is used as a co-initiator for type II photoinitiator combinations.
As a neutralizing agent, N-Methyldiethanolamine (MDEA) increases resin solubility and improves solution stability by reducing pH drift.
Additionally, N-Methyldiethanolamine (MDEA) aids pigment dispersion.

-Inks use of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) is used as a co-initiator for type II photoinitiator combinations.
As a neutralizing agent, N-Methyldiethanolamine (MDEA) increases resin solubility and improves solution stability by reducing pH drift.
Additionally, N-Methyldiethanolamine (MDEA) aids pigment dispersion.

-Methyl Diethanolamine (N-Methyldiethanolamine (MDEA)) Uses
Gas Treatment and Acid Gas Removal:
One of the primary applications of N-Methyldiethanolamine (MDEA) is in natural gas processing and refinery operations.

N-Methyldiethanolamine (MDEA) is commonly used in amine gas treating systems to remove hydrogen sulphide (H₂S) from natural gas streams while leaving carbon dioxide (CO₂) largely unaffected.
This selective absorption makes N-Methyldiethanolamine (MDEA) ideal for gas sweetening in the oil and gas industry.

-Surfactants and Personal Care Products use of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) is utilised in the production of surfactants, which are essential components in personal care products such as shampoos, conditioners, and lotions.
N-Methyldiethanolamine (MDEA) acts as a pH adjuster and emulsifier, helping to stabilise formulations and improve product texture.

-Textile Industry uses of N-Methyldiethanolamine (MDEA):
In the textile industry, N-Methyldiethanolamine (MDEA) forms quaternary ammonium compounds with fatty acids, which are then used in fabric softener formulations.
These compounds enhance the softness and feel of fabrics, improving the quality of textile products.

-Metalworking Fluids use of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) serves as a pH buffer and anticorrosion additive in metalworking fluids.
N-Methyldiethanolamine (MDEA)'s inclusion helps maintain the stability of these fluids and prevents corrosion of metal surfaces during machining processes.

-Coatings and Inks use of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) is used as a neutralising agent in the production of coatings and inks.
N-Methyldiethanolamine (MDEA) increases resin solubility and improves solution stability by reducing pH drift, which aids in pigment dispersion and enhances the quality of the final product.
These diverse applications highlight N-Methyldiethanolamine (MDEA)’s versatility and importance across multiple industries.

-Tertiary amine uses of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) is used in textile lubricants, polishes, detergents, pesticides, and personal care products and pharmaceuticals.
N-Methyldiethanolamine (MDEA) is capable of undergoing reactions typical of both alcohols and amines.

-Gas Treatment uses of N-Methyldiethanolamine (MDEA):
N-Methyldiethanolamine (MDEA) is highly effective for the selective removal of hydrogen sulfide (H2S) from various gas streams.
N-Methyldiethanolamine (MDEA) is commonly utilized in refineries, natural gas processing plants, and syngas production facilities to purify the gas before it is further processed or sold.

-Coatings Industry uses of N-Methyldiethanolamine (MDEA):
As a co-initiator in type II photoinitiator combinations, N-Methyldiethanolamine (MDEA) helps in the production of coatings.
N-Methyldiethanolamine (MDEA) enhances the solubility of resins and contributes to solution stability by mitigating pH drift, thereby improving the quality of the final product.

CHARACTERISTICS of N-METHYLDIETHANOLAMINE (MDEA):
The liquid, N-Methyldiethanolamine (MDEA), has a viscosity of 101 mPa s at 20 °C.
The aqueous solution of N-Methyldiethanolamine (MDEA) is strongly alkaline.
Upon contact with air, N-Methyldiethanolamine (MDEA) reacts with it and must therefore be stored tightly closed.
N-Methyldiethanolamine (MDEA) is readily biodegradable in the wild.
N-Methyldiethanolamine (MDEA) is subject to the Chemical Weapons Convention as a precursor substance and is listed accordingly.

SAFETY-RELATED PARAMETERS of N-METHYLDIETHANOLAMINE (MDEA):
Methyldiethanolamine forms flammable vapor-air mixtures at elevated temperatures.
The compound has a flash point of 137 °C.
The explosion range is between 0.9 vol.% as the lower explosion limit (LEL) and 8.4 vol.% as the upper explosion limit (UEL).
The ignition temperature is 265 °C.
N-Methyldiethanolamine (MDEA) therefore falls into temperature class T3.

NATURE of N-METHYLDIETHANOLAMINE (MDEA):
colorless or dark yellow oily liquid.
Freezing point -21 °c.
Boiling point 247.2 °c.
Flash point 260 °c.
The relative density was 1. 0377.
Refractive index 4678.
Miscible with water and alcohol.
Slightly soluble in ether.

PREPARATION METHOD of N-METHYLDIETHANOLAMINE (MDEA):
ethylene oxide is reacted with methylamine at a temperature of 100 ° C.
To 170 ° C.
And a pressure of 0588 MPA to 9.8066MPA, followed by distillation and rectification to obtain a finished N-methyldiethanolamine.
In addition, formaldehyde and cyanoethanol as raw materials, through catalytic hydrogenation, or formaldehyde and diethanolamine can be obtained N-Methyldiethanolamine (MDEA).

BENEFITS of N-METHYLDIETHANOLAMINE (MDEA):
*Versatile
*Polyfunctional
*Combine characteristics of amines and alcohols

PRODUCTION of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is produced by ethoxylation of methylamine using ethylene oxide:
CH3NH2 + 2 C2H4O → CH3N(C2H4OH)2
Another route involves hydroxymethylation of diethanolamine followed by hydrogenolysis.

CHEMICAL PROPERTIES of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is a colorless to yellow viscous liquid with an ammonia-like odor.
N-Methyldiethanolamine (MDEA) is completely soluble in water.
N-Methyldiethanolamine (MDEA) is an alkyl alkanolamine.
N-Methyldiethanolamine (MDEA) combines the chemical characteristics of both amines and alcohols so that it is capable of undergoing reactions typical of both alcohols and amines: forming quaternary amine salts, soaps, and esters.

PREPARATION of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is produced by the reaction between ethylene oxide and methylamine.

STORAGE of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is stable under normal storage and use conditions, but elevated temperatures can cause it to decompose.
Decomposition products depend upon temperature, air supply, and the presence of other materials.
N-methyldiethanolamine can react with halogenated organics, resulting in temperature and/or pressure increases.
N-Methyldiethanolamine (MDEA) is corrosive when wet.

REACTIVITY PROFILE of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is an aminoalcohol.
Amines are chemical bases.

They neutralize acids to form salts plus water.
These acid-base reactions are exothermic.

The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base.
Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides.

Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
N-Methyldiethanolamine (MDEA) may react with oxidizing materials.

N-METHYLDIETHANOLAMINE (MDEA) BLENDS
N-Methyldiethanolamine (MDEA) is less reactive towards CO2, but has an equilibrium loading capacity approaching 1 mole CO2 per mole amine.
N-Methyldiethanolamine (MDEA) also requires less energy to regenerate.
To combine the advantages of N-Methyldiethanolamine (MDEA) and the smaller amines, N-Methyldiethanolamine (MDEA) is usually mixed with a catalytic promoter such as piperazine, PZ, or a fast reacting amine such as MEA to retain reactivity, but lower regeneration costs.

Activated N-Methyldiethanolamine (MDEA) or aN-Methyldiethanolamine (MDEA) uses piperazine as a catalyst to increase the speed of the reaction with CO2.
N-Methyldiethanolamine (MDEA) has been commercially successful.

Many tests have been done on the performance of N-Methyldiethanolamine (MDEA)/MEA or N-Methyldiethanolamine (MDEA)/piperazine mixtures compared to single amines.
CO2 production rates were higher than MEA for the same heat duty and total molar concentration when experiments were performed in the University of Regina pilot plant, which is a modeled after a natural gas plant.

There were also insignificant trace amounts of degradation products detected.
However, when the same control variables and tests were conducted at the Boundary Dam Power Station plant, the CO2 production rate for the mixed solvent was lower than MEA.

This was a result of the reduction in the capacity of the solvent to absorb CO2 after degradation.
Because the Boundary Dam plant is a coal-fired power plant, it operates under harsher environments and produces an impure flue gas containing, fly ash, SO2, and NO2 that are fed into carbon capture.

Even with flue gas pretreatment, there is still enough to produce degradation products such as straight chain amines and sulfur compounds, which accumulate so it is no longer possible to regenerate MEA and N-Methyldiethanolamine (MDEA).
For these blends to be successful in reducing heat duty, their chemical stabilities must be maintained.

DEGRADATION of N-METHYLDIETHANOLAMINE (MDEA):
Main oxidative degradation products of N-Methyldiethanolamine (MDEA) include monoethanol amine (MEA), methyl-aminoethanol (MAE), diethanolamine (DEA), amino acids bicine, glycine and hydroxyethyl sarcosine (HES), formyl amides of MAE and DEA, ammonia, and stable salts formate, glycolate, acetate, and oxalate.

In an industrial plan that utilizes N-Methyldiethanolamine (MDEA), oxidative degradation is most likely to shift to the cross exchanger where temperatures are greater than 70 °C.

Higher temperatures and higher CO2 loading accelerate the rate of degradation, resulting in an increase of alkalinity loss as well as total formate production.
While N-Methyldiethanolamine (MDEA) is more resistant to degradation as a standalone compared to MEA, N-Methyldiethanolamine (MDEA) is preferentially degraded when in an N-Methyldiethanolamine (MDEA)/MEA blend.

Because of the formation of DEA and MAE, which could form nitroso-compounds or diethylnitrosamine and diethylnitraine, the blend could potentially have an adverse impact in terms of atmospheric admissions.
In the Boundary Dam plant, emissions increased when CO2 loading of lean amine increased for the blend and MEA.

However, decreasing the lean loading increases the reboiler heat duty, which results in an obvious tradeoff between emissions and heat duty or energy costs.
This compound should not be confused with the recreational drug methylenedioxyethylamphetamine which is also abbreviated N-Methyldiethanolamine (MDEA).

PRODUCTION METHOD of N-METHYLDIETHANOLAMINE (MDEA):
From the reaction of formaldehyde and diethanolamine.
Formic acid was added to the reaction pot and heated to boiling, and a mixed solution of formaldehyde and diethanolamine was added dropwise under stirring for about 1H.
The temperature was maintained at 90-98 ° C., and reflux was continued for 4 hours.

Then, distillation under reduced pressure was carried out to collect a fraction at 120-130 ° C. (0.53kPa) to obtain N-methyldiethanolamine in a yield of 85%.
Derived from the reaction of methylamine with ethylene oxide.

The temperature was kept below 30 ° C., and the addition reaction was carried out by introducing ethylene oxide gas into 20% methylamine solution until the relative density of the reaction solution reached 1.025.
Stirring for 15min, the relative density is unchanged for the end point.
Methylamine was recovered to 103 ° C.

Under normal pressure, and after water was evaporated under reduced pressure, a 119-170 ° C. (4.67kPa) fraction was collected.
It is the finished product.
The yield was 72%.

Raw material consumption quota: Ethylene oxide 950kg/t, methylamine (40%)870kg/t.
In addition, N-Methyldiethanolamine (MDEA) can be obtained by catalytic hydrogenation of formaldehyde and cyanoethanol.

N-Methyldiethanolamine (MDEA), also known as N-methyl diethanolamine and more commonly as N-Methyldiethanolamine (MDEA), is the organic compound with the formula CH₃N(C₂H₄OH)₂.

N-Methyldiethanolamine (MDEA) is a colorless liquid with an ammonia odor.
N-Methyldiethanolamine (MDEA) is miscible with water, alcohol, and benzene.

As a tertiary amine, N-Methyldiethanolamine (MDEA) is widely used as a sweetening agent in chemical plants, oil refineries, syngas, and natural gas production.
N-Methyldiethanolamine (MDEA) is less corrosive with lower energy requirements used in acid gas removal applications.

CHEMICAL PROPERTIES of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) exhibits several distinctive chemical properties due to its molecular structure.
Its formula is CH3N(C2H4OH)2, identifying it as a tertiary amine with two hydroxyl groups, which gives N-Methyldiethanolamine (MDEA) the combined characteristics of amines and alcohols.

Physical State:
N-Methyldiethanolamine (MDEA) appears as a colorless to yellowish viscous liquid at room temperature and has a noticeable ammonia-like odor.

Solubility:
N-Methyldiethanolamine (MDEA) is completely soluble in water, which allows it to be used in various applications that require water mixing.
N-Methyldiethanolamine (MDEA) is also miscible with organic solvents such as ethanol and benzene.

Boiling Point and Molecular Weight:
Boiling Point: Data not specified here
Molecular Weight: 119.1622 g/mol

Reactivity:
As a tertiary amine, N-Methyldiethanolamine (MDEA) can engage in typical amine reactions, such as forming salts with acids or undergoing alkylation and acylation.
Its dual alcohol functionality allows N-Methyldiethanolamine (MDEA) to form esters and undergo oxidation reactions.

Stability:
N-Methyldiethanolamine (MDEA) is stable under normal conditions but can become unstable at elevated temperatures or when in contact with strong oxidizing agents.

PRODUCTION AND SYNTHESIS of N-METHYLDIETHANOLAMINE (MDEA):
N-Methyldiethanolamine (MDEA) is synthesized industrially primarily by the reaction of ethylene oxide with an aqueous ammonia solution.
The process involves a sequence of consecutive reactions, where ammonia first reacts to form N-Methyldiethanolamine (MDEA), which further reacts to diethanolamine (DEA), and finally to triethanolamine (TEA).
The challenge in this synthetic route is the selective production of N-Methyldiethanolamine (MDEA) due to the consecutive nature of the reactions.

Synthesis Steps:
*Ammonia Activation:
Ammonia reacts with ethylene oxide to form MEA.

*Secondary Reaction:
MEA reacts further with ethylene oxide yielding DEA.

*Tertiary Reaction:
DEA, under continued reaction with ethylene oxide, can lead to the formation of TEA.
To improve the selectivity towards N-Methyldiethanolamine (MDEA), a catalytic process has been developed.

This approach maximizes the production of DEA while minimizing the formation of MEA and TEA.
In terms of synthesis conditions, the reaction typically requires careful control of temperature and pH to optimize yield and selectivity.
The use of catalysts can also play a crucial role in enhancing the efficiency of the synthesis process.

TYPICAL PRODUCTION PROCESS of N-METHYLDIETHANOLAMINE (MDEA):
Initial Reactants:
Ethylene oxide, Ammonia, Water

Reaction Conditions:
Controlled temperature and pH

Catalysis:
Utilization of selective catalysts to improve yield

N-Methyldiethanolamine (MDEA)'s synthesis is an integral part of the ethanolamines production in the chemical industry.
Once synthesized, N-Methyldiethanolamine (MDEA) serves as a vital chemical used extensively in gas treatment as a sweetening agent because of its ability to selectively scrub hydrogen sulfide (H2S) from gas streams, differentiating it from other amines.

PHYSICAL and CHEMICAL PROPERTIES of N-METHYLDIETHANOLAMINE (MDEA):
Linear Formula: CH3N(CH2CH2OH)2
CAS Number: 105-59-9
Molecular Weight: 119.16 g/mol
Beilstein: 1734441
EC Number: 203-312-7
MDL Number: MFCD00002848
UNSPSC Code: 12352100
PubChem Substance ID: 24870762
NACRES: NA.22
Physical State: Clear, viscous liquid

Color: Light yellow
Odor: Ammoniacal
Melting Point/Freezing Point: −21.3 °C at 1.013 hPa
Boiling Point/Range: 246–248 °C
Flash Point: 127 °C (closed cup)
Autoignition Temperature: 280 °C at 1.013 hPa
pH: 11.5 (100 g/L at 20 °C)
Viscosity, Kinematic: 99.05 mm²/s at 20 °C
Viscosity, Dynamic: 101 mPa·s at 20 °C

Water Solubility: 1,000 g/L at 20 °C, completely miscible
Partition Coefficient (log Pow): −1.08 at 25 °C
Vapor Pressure: 0.01 hPa at 20 °C
Density: 1.038 g/cm³ at 25 °C
Relative Vapour Density: 4.11 (Air = 1.0)
Explosive Properties: Not classified as explosive
Oxidizing Properties: None
Dissociation Constant: 8.52 at 25 °C
XLogP3-AA: −1.1

Hydrogen Bond Donor Count: 2
Hydrogen Bond Acceptor Count: 3
Rotatable Bond Count: 4
Exact Mass: 119.09463 Da
Monoisotopic Mass: 119.09463 Da
Topological Polar Surface Area: 43.7 Å²
Heavy Atom Count: 8
Formal Charge: 0

Complexity: 43.7
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes
CBNumber: CB3260193

Molecular Formula: C5H13NO2
MOL File: 105-59-9.mol
Melting Point: -21 °C
Boiling Point: 246-248 °C (lit.)
Density: 1.038 g/mL at 25 °C (lit.)
Vapor Density: 4 (vs air)
Vapor Pressure: 0.01 mm Hg (20 °C)
Refractive Index: n20/D 1.469 (lit.)
Flash Point: 260 °F

Storage Temp.: Store below +30°C
Solubility: Chloroform (Slightly), Methanol (Slightly)
Form: Liquid
pKa: 14.41±0.10 (Predicted)
Color: Clear colorless to light yellow
Odor: Ammonical
PH Range: 11.5 at 100 g/l at 20 °C
PH: 11.5 (100 g/l, H2O, 20℃)

Explosive Limit: 0.9-8.4% (V)
Viscosity: 99.05 mm2/s
Water Solubility: MISCIBLE
BRN: 1734441
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey: CRVGTESFCCXCTH-UHFFFAOYSA-N
LogP: -1.16 at 23℃
Surface Tension: 33.5 mN/m at 303.15K

Indirect Additives used in Food Contact Substances: N-METHYLDIETHANOLAMINE
CAS DataBase Reference: 105-59-9 (CAS DataBase Reference)
FDA UNII: 3IG3K131QJ
NIST Chemistry Reference: Methyldiethanolamine (105-59-9)
EPA Substance Registry System: N-Methyldiethanolamine (105-59-9)
UNSPSC Code: 12352104
NACRES: NA.22
Appearance: Colorless or slightly yellow viscous liquid
Latent Heat of Vaporization: 519.16 KJ/Kg

Purity: 99.8% min.
EINECS: 203-312-7
Molecular Formula: C5H13NO2
Molar Mass: 119.16
Storage Condition: Store below +30°C
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
Explosive Limit: 0.9-8.4% (V)
Refractive Index: n20/D 1.469 (lit.)
Physical and Chemical Properties: colorless or yellowish viscous liquid

Boiling Point: 246~248 ℃
Flash Point: 260 ℃
Freezing Point: -21 ℃
Latent Heat of Vaporization: 519.16 KJ/Kg
Boiling Point: 247 ℃
Water-Soluble: soluble in water and alcohol, slightly soluble in ether
Product: Methyl Diethanolamine
CAS: 105-59-9
Formula: CH3N(CH2CH2)2OH

Density: 1.0418
Assay %: min. 99% (By GLC using Tenax GC column)
Specific Gravity 20/20 deg C: 1.71 kJ/Kg (k at 30 deg C)
Odor: Mild ammonical
Refractive Index: 1.4694
Color, APHA; ASTM D 1209: max. 20 APHA (at time of filling)
Dropping Point: 247.2 °C

Flash Point COC: 135 °C (COC)
Sensoric: Clear hygroscopic liquid
Specific Gravity (@25/25° C): 1.038 g/cm3 min., 1.044 g/cm3 max.
Water When Shipped: max. 0.0% (KF titr and ASTM)
Soluble: Water Miscible, hygroscopic
Viscosity: 101 mPa·s at 20 °C
Vapor Pressure: 0.0026 kPa at 40 °C, 0.31 kPa at 100 °C
Ignition: 265 °C
Insolubility: in aliphatic solvents

Color: colorless clear liquid
Molecular Weight: 119.19
Flash Point: 126.6 °C
Solubility: water, oxygenated solvents
Boiling Point: 247.2 °C
Formula: C5H13NO2
Molecular Weight: 119.2
Assay: Min. 99% by GC using Tenax GC/107 Column

Distillation Range: 240 °C – 260 °C
Water Content: 0.5% Max by wt
Specific Gravity at 20/20 °C: 1.038 - 1.044
Colour: 50 APHA max
Freezing Point: -21 °C
Refractive Index, n20D: 1.4694
Dynamic Viscosity at 20 °C: 101 mPa·s
pH of 0.1N Aq. solution: >10
Molecular Formula / Molecular Weight: C5H13NO2 = 119.16

Physical State (20 °C): Liquid
Storage Temperature: Room Temperature (Recommended in a cool and dark place, <15°C)
Store Under Inert Gas: Store under inert gas
Condition to Avoid: Air Sensitive
CAS RN: 105-59-9
Reaxys Registry Number: 1734441
PubChem Substance ID: 125309705
SDBS (AIST Spectral DB): 2807
MDL Number: MFCD00002848

Molecular Weight: 119.16 g/mol
XLogP3-AA: -1.1
Hydrogen Bond Donor Count: 2
Hydrogen Bond Acceptor Count: 3
Rotatable Bond Count: 4
Exact Mass: 119.094628657 g/mol
Monoisotopic Mass: 119.094628657 g/mol
Topological Polar Surface Area: 43.7Å²
Heavy Atom Count: 8
Formal Charge: 0

Appearance: Colorless liquid
Odor: Ammoniacal
Density: 1.038 g mL−1
Melting point: −21.00 °C; −5.80 °F; 252.15 K
Boiling point: 247.1 °C; 476.7 °F; 520.2 K
Solubility in water: Miscible
Vapor pressure: 1 Pa (at 20 °C)
Refractive index (nD): 1.4694
Viscosity: 101 mPa s (at 20°C)
Physical state: clear, viscous liquid

Color: light yellow
Odor: ammoniacal
Melting point/freezing point:
Melting point/range: -21,3 °C
Initial boiling point and boiling range: 246 - 248 °C - lit.
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits:
Upper explosion limit: 8,8 %(V)
Lower explosion limit: 1,4 %(V)
Flash point 127 °C - closed cup

Autoignition temperature: 280 °C at 1.013 hPa
Decomposition temperature: No data available
pH: 11,5 at 100 g/l at 20 °C
Viscosity
Viscosity, kinematic: No data available
Viscosity, dynamic: 101 mPa.s at 20 °C
Water solubility: completely miscible
Partition coefficient: n-octanol/water: log Pow: -1,08

Vapor pressure: 0,01 hPa at 20 °C
Density: 1,038 g/cm3 at 25 °C - lit.
Relative density: No data available
Relative vapor density: No data available
Particle characteristics: No data available
Explosive properties: No data available
Oxidizing properties: none
Other safety information:

Dissociation constant: 8,52 at 25 °C
Relative vapor density: 4,11 - (Air = 1.0)
Distillation Range: 240oC – 260oC
Water Content: 0.5 % Max by wt
Specific gravity at 20/20o C: 1.038 - 1.044
Colour 50 APHA max
Freezing Point : -21oC

Refractive Index, n20D: 1.4694
Dynamic Viscosity, at 20oC, m Pas : 101
pH of 0.1N Aq.soln. : > 10
Melting Point: -21°C
Color: Colorless to Yellow
Density: 1.0380 g/mL
Boiling Point: 243°C
Flash Point: 138°C

Infrared Spectrum: Authentic
Assay Percent Range: 99% min. (GC)
Packaging: Glass bottle
Linear Formula: (HOCH2CH2)2NCH3
Refractive Index: 1.4675 to 1.4695
Beilstein: 04, 284
Specific Gravity: 1.038
Solubility Information:

Solubility aq. soln.: miscible.
Other solubilities: miscible with benzene,soluble in most organic solvents
(alcohol,esters,aceton and chlorinated hydrocarbons),soluble in diethylether and aliphatic hydrocarbons.
IUPAC Name: 2-[(2-hydroxyethyl)(methyl)amino]ethan-1-ol
Viscosity: 101 mPa.s (20°C)
Formula Weight: 119.16
Percent Purity: 99+%

Physical Form: Liquid
Chemical Name or Material: N-Methyldiethanolamine, 99+%
Melting point: -21 °C
Boiling point: 246-248 °C(lit.)
Density: 1.038 g/mL at 25 °C(lit.)
vapor density: 4 (vs air)
vapor pressure: 0.01 mm Hg ( 20 °C)
refractive index: n20/D 1.469(lit.)

Flash point: 260 °F
storage temp.: Store below +30°C.
solubility: Chloroform (Slightly), Methanol (Slightly)
pka: 14.41±0.10(Predicted)
form: Liquid
color: Clear colorless to light yellow
Odor: Ammonical
PH Range: 11.5 at 100 g/l at 20 °C
PH: 11.5 (100g/l, H2O, 20℃)
explosive limit: 0.9-8.4%(V)

Viscosity: 99.05mm2/s
Water Solubility: MISCIBLE
BRN: 1734441
Stability: Stable.
InChIKey: CRVGTESFCCXCTH-UHFFFAOYSA-N
LogP: -1.16 at 23℃
Chemical name (CAS): 2,2'-(methylimino)bisethanol
CAS number: 105-59-9
Structural formula: H3C−N /CH2CH2OH / CH2CH2OH

Molecular formula: C5H13NO2
Molecular weight: 119.16
Density: 1.038–1.041 g/cm3 at 20°C
Boiling point: 247°C
Vapour pressure: 2.6 hPa at 40°C
Solubility: miscible with water, low molecular weight
alcohols, esters, acetone, benzene and
chlorinated hydrocarbons; not miscible
with diethylether or aliphatic hydrocarbons
Color: yellow, Clear, Colorless

Density: 1.04 g/cm3 @ 20 °C (68 °F)
Dynamic Viscosity: 34.78 mPa.s @ 40 °C (104 °F)
Flash Point: 116 °C (241 °F)
Kinematic Viscosity: 99.05 mm2/s @ 20 °C (68 °F)
Lower Explosion Limit: 0.9 %(V)
Melting Point: -21 °C (-6 °F)
Odor: ammoniacal, amine-like
Partition Coefficient:
Pow: 25 °C (77 °F) log Pow: -1.08 @ 25 °C (77 °F)

pH: 10.4 - 11.5 @ 20 - 25 °C (68 - 77 °F)
Relative Density: 1.041 @ 20 °C (68 °F) Reference Material: (water = 1)
Relative Vapor Density: 4 @ 20 - 25 °C (68 - 77 °F)
Solubility in Water: completely miscible
Upper Explosion Limit: 10 %(V)
Vapor Pressure: < 0.01 mmHg @ 20 °C (68 °F)
Molecular Formula: C5H13NO2
Molar Mass: 119.16
Density: 1.038g/mLat 25°C(lit.)
Melting Point: -21 °C
Boling Point: 246-248°C(lit.)
Flash Point: 260°F
Water Solubility: MISCIBLE

Vapor Presure: 0.01 mm Hg ( 20 °C)
Vapor Density: 4 (vs air)
Appearance: Liquid
Color: Clear colorless to light yellow
Odor: Ammonical
BRN: 1734441
pKa: 14.41±0.10(Predicted)
PH: 11.5 (100g/l, H2O, 20℃)
Storage Condition: Store below +30°C.
Stability: Stable.
Explosive Limit: 0.9-8.4%(V)
Refractive Index: n20/D 1.469(lit.)

ΔfG°: -171.64 kJ/mol
ΔfH°gas: -383.46 kJ/mol
ΔfusH°: 19.90 kJ/mol
ΔvapH°: 62.12 kJ/mol
log10WS: 0.99
logPoct/wat: -1.097
McVol: 103.030 ml/mol
Pc: 4160.00 kPa
Tboil: [520.20; 520.45]K
Tc: 667.49K
Tfus: [250.00; 252.15]K
Vc: 0.371 m3/kmol

Cp,gas [244.80; 289.41]: J/mol×K [510.60; 667.49]
Cp,liquid [273.00; 304.00]: J/mol×K [303.15; 353.15]
η [0.0041200; 0.1420200]: Pa×s [288.00; 373.15]
ΔvapH [71.50; 73.00]: kJ/mol [422.00; 455.00]
Pvap [2.48; 101.30]: kPa [409.69; 520.28]
n0: [1.46008; 1.46840] [293.15; 303.10]
ρl [936.81; 1048.00]: kg/m3 [283.15; 423.15]
csound,fluid [1490.40; 1598.80]: m/s [288.15; 323.15]
γ [0.04; 0.04]: N/m [288.15; 333.15]

FIRST AID MEASURES of N-METHYLDIETHANOLAMINE (MDEA):
-Description of first-aid measures:
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed:
No data available

ACCIDENTAL RELEASE MEASURES of N-METHYLDIETHANOLAMINE (MDEA):
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up with liquid-absorbent material.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of N-METHYLDIETHANOLAMINE (MDEA):
-Extinguishing media:
*Suitable extinguishing media:
Water
Foam
Carbon dioxide (CO2)
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Suppress (knock down) gases/vapors/mists with a water spray jet.
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of N-METHYLDIETHANOLAMINE (MDEA):
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Skin protection:
Full contact:
Material: butyl-rubber
Minimum layer thickness: 0,7 mm
Break through time: 480 min
Splash contact:
Material: Nitrile rubber
Minimum layer thickness: 0,4 mm
Break through time: 60 min
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A (acc. to DIN 3181) for vapours of organic compounds.
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of N-METHYLDIETHANOLAMINE (MDEA):
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.

STABILITY and REACTIVITY of N-METHYLDIETHANOLAMINE (MDEA):
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature) .
-Possibility of hazardous reactions:
No data available