Tetramethyl-1,3-diaminopropane

Synonym(s):1,3-Bis(dimethylamino)propane;TMPDA

CAS NO.：110-95-2
Empirical Formula: C7H18N2
Molecular Weight: 130.23
MDL number: MFCD00008337
EINECS: 203-818-8
SAFETY DATA SHEET (SDS)
Update Date: 2024-08-24 19:19:26

Tetramethyl-1,3-diaminopropane Structural

What is Tetramethyl-1,3-diaminopropane?

Description

Tetramethyl-1,3-diaminopropane can be made by methylation of 1,3-diaminopropane with formaldehyde or from dimethylaminopropionitrile and dimethylamine and is an intermediate for corrosion inhibitors, textile auxiliaries, flotation agents, and emulgators. It is also employed as a catalyst for polyurethanes and as a hardener for epoxy resins.

Chemical properties

colourless liquid

General Description

N,N,N′,N′-Tetramethyl-1,3-propanediamine is an acyclic tertiary amine. It shows the ability to absorb CO₂when dissolved in aqueous solution.
N,N,N′,N′-Tetramethyl-1,3-propanediamine (TMPDA) may be used:
As a catalyst for the Baylis-Hillman reaction of cycloalkenones.
In the preparation of homodimeric asymmetric monomethine cyanine dyes during the bisquaternization process.
As a ligand (L) for the preparation of dinuclear μ-carbonato-dicopper(II) species.

Flammability and Explosibility

Flammable

Properties of Tetramethyl-1,3-diaminopropane

Melting point:	28.9°C (estimate)
Boiling point:	145-146 °C(lit.)
Density	0.779 g/mL at 25 °C(lit.)
vapor pressure	760 mm Hg ( 145 °C)
refractive index	n20/D 1.4234(lit.)
Flash point:	89 °F
storage temp.	Inert atmosphere,Room Temperature
form	Liquid
pka	9.88±0.28(Predicted)
color	Clear colorless to light yellow
PH	12.5 (100g/l, H2O, 20℃)
explosive limit	2.9-22.5%(V)
BRN	1734176
Stability:	Stable. Flammable. Incompatible with strong oxidizing agents, acids, acid chlorides, permanganates, carbon dioxide, nitrates, peroxides, nitrites, halogens.
CAS DataBase Reference	110-95-2(CAS DataBase Reference)
NIST Chemistry Reference	1,3-Propanediamine, N,N,N',N'-tetramethyl-(110-95-2)
EPA Substance Registry System	1,3-Propanediamine, N,N,N',N'-tetramethyl- (110-95-2)

Safety information for Tetramethyl-1,3-diaminopropane

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 Environment GHS09
GHS Hazard Statements	H226:Flammable liquids H314:Skin corrosion/irritation H331:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.