ChemicalBook--->CAS DataBase List--->105-59-9

105-59-9

105-59-9 Structure

105-59-9 Structure
IdentificationMore
[Name]

N-Methyldiethanolamine
[CAS]

105-59-9
[Synonyms]

2,2'-METHYLIMINODIETHANOL
BIS(2-HYDROXYETHYL)METHYLAMINE
MDEA
METHYL DIETHANOLAMINE
N-METHYL-2,2-IMINOBIS(ETHANOL)
N-METHYL-2,2'-IMINODIETHANOL
N-METHYLDIETHANOLAMINE
N-METHYL-N-(2-HYDROXYETHYL)-2-AMINOETHANOL
N,N-BIS(2-HYDROXYETHYL)METHYLAMINE
2-(N-2-Hydroxyethyl-N-methylamino)ethanol
2,2’-(methylimino)bis-ethano
2,2’-(methylimino)bis-Ethanol
2,2’-(methylimino)di-ethano
Diethanolmethylamine
Ethanol, 2,2'-(methylimino)bis-
Ethanol, 2,2'-(methylimino)di-
Ethanol,2,2’-(methylimino)bis-
Mdea (diol)
Methylbis(2-hydroxyethyl)amine
Methyldiethanolamin
[EINECS(EC#)]

203-312-7
[Molecular Formula]

C5H13NO2
[MDL Number]

MFCD00002848
[Molecular Weight]

119.16
[MOL File]

105-59-9.mol
Chemical PropertiesBack Directory
[Appearance]

colourless viscous liquid
[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.)
[Fp ]

260 °F
[storage temp. ]

Store below +30°C.
[form ]

Liquid
[pka]

14.41±0.10(Predicted)
[color ]

Clear colorless to light yellow
[Odor]

Ammonical
[PH]

11.5 (100g/l, H2O, 20℃)
[PH Range]

11.5 at 100 g/l at 20 °C
[Stability:]

Stable. Combustible. Incompatible with strong oxidizing agents.
[explosive limit]

0.9-8.4%(V)
[Water Solubility ]

MISCIBLE
[BRN ]

1734441
[InChIKey]

CRVGTESFCCXCTH-UHFFFAOYSA-N
[Uses]

Intermediate, absorption of acidic gases, cata-lyst for polyurethane foams, p H control agent.
[CAS DataBase Reference]

105-59-9(CAS DataBase Reference)
[NIST Chemistry Reference]

Methyldiethanolamine(105-59-9)
[EPA Substance Registry System]

105-59-9(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36:Irritating to the eyes.
[Safety Statements ]

S24:Avoid contact with skin .
[RIDADR ]

2735
[WGK Germany ]

1
[RTECS ]

KL7525000
[Autoignition Temperature]

770 °F
[TSCA ]

Yes
[HazardClass ]

8
[PackingGroup ]

II
[HS Code ]

29221940
[Hazardous Substances Data]

105-59-9(Hazardous Substances Data)
[Toxicity]

LD50 orally in Rabbit: 4680 mg/kg
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Diethanolamine-->3-Hydroxypropionitrile
[Preparation Products]

Desulfurizer,high efficiency-->4-CYANO-4-(3-METHOXYPHENYL)-1-METHYLPIPERIDINE-->Chlormethine
Hazard InformationBack Directory
[General Description]

Colorless liquid.
[Reactivity Profile]

METHYLDIETHANOLAMINE(105-59-9) 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. This compound may react with oxidizing materials.
[Air & Water Reactions]

Very water soluble .
[Health Hazard]

Exposure can cause irritation of eyes, nose and throat.
[Fire Hazard]

Special Hazards of Combustion Products: Irritating vapors and toxic gases, such as nitrogen oxides and carbon monoxide, may be formed when involved in fire.
[Chemical Properties]

N-Methyldiethanolamine (MDEA) is a colorless to yellow viscous liquid with an ammonia-like odor. It is completely soluble in water. N-Methyldiethanolamine is an alkyl alkanolamine.It 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]

N-methyldiethanolamine is produced by the reaction between ethylene oxide and methylamine.
Preparation of N-methyldiethanolamine
[Synthesis Reference(s)]

Journal of the American Chemical Society, 107, p. 6659, 1985 DOI: 10.1021/ja00309a039
[Flammability and Explosibility]

Nonflammable
[Environmental Fate]

N-methyldiethanolamine is readily biodegradable, and its bioconcentration potential is low. Releases to the environment would not persist and would degrade rapidly. The potential for mobility in soil is very high. It is slightly toxic to aquatic organisms on an acute basis.
[storage]

N-methyldiethanolamine 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. Avoid contact with nitrites, strong acids, and strong oxidizers. Avoid unintended contact with halogenated hydrocarbons. N-methyldiethanolamine can react with halogenated organics, resulting in temperature and/or pressure increases. It is corrosive when wet. Heating above 60°C (140°F) in the presence of aluminum can result in corrosion and generation of flammable hydrogen gas.
Spectrum DetailBack Directory
[Spectrum Detail]

N-Methyldiethanolamine(105-59-9)MS
N-Methyldiethanolamine(105-59-9)1HNMR
N-Methyldiethanolamine(105-59-9)13CNMR
N-Methyldiethanolamine(105-59-9)IR1
N-Methyldiethanolamine(105-59-9)IR2
N-Methyldiethanolamine(105-59-9)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

N-Methyldiethanolamine, 99+%(105-59-9)
[Alfa Aesar]

N-Methyldiethanolamine, 98+%(105-59-9)
[Sigma Aldrich]

105-59-9(sigmaaldrich)
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