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N-MethyldiethanolaMine

  • N-MethyldiethanolaMine
  • N-MethyldiethanolaMine
  • 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.

Factory Showcase

详情-工厂

Shipping and Transportation

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: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Q3: Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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