N-MethyldiethanolaMine

N-MethyldiethanolaMine

CAS No.: 105-59-9
Molecular Formula: C5H13NO2
Molecular Weight: 119.16
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product description

N‑Methyldiethanolamine, commonly abbreviated as MDEA, is a colorless or pale yellow viscous liquid with a mild amine odor. It is a tertiary alkanolamine widely used in gas treatment, chemical synthesis, and industrial processing.


Chemical Properties

PropertyValue
Melting point-21 °C
Boiling point246-248 °C (lit.)
Density1.038 g/mL at 25 °C (lit.)
Vapor density4 (vs air)
Vapor pressure0.01 mm Hg (20 °C)
Refractive indexn20/D 1.469 (lit.)
Flash point260 °F
Storage conditionStore below +30°C.
SolubilitySoluble in chloroform (slightly), methanol (slightly)
Acid dissociation constant (pKa)14.41±0.10 (Predicted)
FormLiquid
ColorClear colorless to pale yellow
OdorAmmonia-like
pH value11.5 (100g/l, H₂O, 20°C)
pH range (indicator)11.5 at 100 g/l at 20 °C
Explosive limit0.9-8.4%(V)
Water solubilityMISCIBLE
BRN1734441
StabilityStable. Combustible. Incompatible with strong oxidizing agents.
Cosmetic ingredient functionFILM FORMING
InChI1S/C5H13NO2/c1-6(2-4-7)3-5-8/h7-8H,2-5H2,1H3
InChIKeyCRVGTSFCCXCTH-UHFFFAOYSA-N
SMILESN(CO)(CO)C(C)O
LogP-1.16 at 23°C
Surface tension33.5 mN/m at 303.15K
CAS database105-59-9 (CAS DataBase Reference)
NIST chemical substance informationMethyldiethanolamine (105-59-9)
EPA chemical substance informationN-Methyldiethanolamine (105-59-9)


Safety Information

PropertyValue
Hazard symbolXi
Hazard class code36
Safety description24
UN dangerous goods number2735
WGK Germany1
RTECS numberKL7525000
Autoignition temperature770 °F
TSCATSCA listed
HS code2922 17 00
Hazard class8
Packing groupII
Storage class10 - Combustible liquids
Hazard class (category)Eye irritation, Category 2
Hazardous substances data105-59-9 (Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 4680 mg/kg


Product Usage

N-MethyldiethanolaMine is an important organic amine compound with wide industrial applications. In natural gas and refinery gas purification, it serves as a selective acid gas removal agent, efficiently absorbing hydrogen sulfide while minimizing co-absorption of carbon dioxide, thereby reducing energy consumption. In the coatings and polyurethane industries, it acts as a neutralizing agent and catalyst, used for pH adjustment in water-based coatings and for rigid foam production. Additionally, it is used as an intermediate in textile and pharmaceutical synthesis, as well as in flue gas desulfurization and as a rust inhibitor additive in metalworking fluids.

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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

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FAQ

Q1: Are Your Products Compliant With International Standards?

A1: Yes, our company holds a number of internationally recognized core certifications. All production and operation activities strictly follow international environmental, safety and quality standards, and each batch of products is accompanied by a compliance test report to meet the chemical industry requirements in different regions around the world.


Q2: Do You Provide Customized Product Services?
A2: Yes, we have a professional R&D team and refined production capacity. We can customize chemical products of different specifications and performances according to customers' specific needs, and provide full-process technical support to meet the personalized application needs of downstream industries.


Q3: What Is The Approximate Delivery Cycle Of The Products?
A3: The delivery cycle varies according to product type, order quantity and destination. We have a complete global supply chain system to ensure fast and safe delivery of goods. For specific cycle, you can consult our sales team for detailed information.


Q4: How To Obtain Product Samples?
A4: You can contact our customer service or sales team to specify the specific model and specification of the required samples. We will provide free samples according to the actual situation, and the sample express fee can be negotiated.

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