Technical Data Sheet
Methyldiethanolamine (MDEA)
EC name: 2,2'-methyliminodiethanol
CAS name: Ethanol, 2,2'-(methylimino)bis-
IUPAC name: 2-[(2-hydroxyethyl)(methyl)amino]ethan-1-o1
EC number: 203-312-7
CAS No.: 105-59-9
Product Methyldiethanolamine is a colorless or pale yellow liquid with an ammonia-like odour,
miscible with water, alcohol and benzene.
Description
Item Unit Specification Test method
Methyldiethanolamine % 99,2 MIN М-0007-05-10
Impurities
(methylmonoethanolamine,
monooxiethylated % 0,8 MAX M-0007-05-10
methyldiethanolamine, other
non-identified impurities)
Karl Fisher Coulometer (Mettler
Water % 0,2 MAX
Toledo DL 36 KF)
Colour (Pt.-Co.) 50 MAX ASTM D 1209-93
Density, at 20°C g/сm³ 1,038 – 1,046 GOST18995.1-73 p1
Typical Physical Properties
Data represent typical physical properties only and should not be construed as product specifications.
Formula C5H13NO2
Appearance Colorless liquid
Molar mass 119.16 g mol−1
Property Results
Liquid
Physical state at 20°C and 1013 hPa Colour: colourless
Odour: ammonia-like
Melting / freezing point -21.3 °C at 1013 hPa
Boiling point 243.3 °c at 1013 hPa
Relative density 1.04 g/cm3 at 20 °C
Vapour pressure 0.0027 hPa at 25°C
Surface tension not surface active
Water solubility >1000g/l at 20°C
Partition coefficient n-octanol/water (log value) -1,08 at 25°c and PH 10.1
Flash point 138 °C at 1013 hPa
Non flammable upon ignition.
Flammability The substance has no pyrophoric properties and does not
liberate flammable gases on contact with water.
Explosive properties non explosive
Self-ignition temperature 280 °C at 1013 hPa
Oxidising properties no oxidising properties
Granulometry not applicable
Stability in organic solvents and identity of relevant
not applicable
degradation products
Dissociation constant 8.52 at 25°C
Viscosity 99.05 mm2/s
Packaging Metal drums: 215 kg / drum
Plastic drums: 222 kg / drum
IBC container: 1000 kg net
Bulk
Fields of - natural and process gas treatment (in oil, gas, nitrogen, metallurgy industries etc.);
application - production of lubricants, coatings and metal working fluids;
- production of esterquats;
- construction chemicals: as additive in concrete and cement;
- polyurethane foaming and polymerization reactions;
- fibers and textile industry;
- pharmaceutical industry
etc.
Storage and Fire preventions: Keep away from sources of ignition - No smoking.
Handling Aerosol preventions: Ensure thorough ventilation of store and work areas.
Environmental precautions: Hermetic of equipment, product storage tanks, containers.
Segregate from acids and acid forming substances.
Further information on storage conditions: Containers should be stored tightly sealed in a
dry place.
Storage duration: 12 Months.
Data on the storage life specified in the safety data are not a contractual guarantee of the
properties of the product.
Always refer to the Material Safety Data Sheet (MSDS) for detailed information on
handling and disposal
Safety Always refer to the Material Safety Data Sheet (MSDS) for detailed information on safety.
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