4,4'-Methylenebis(2-methylcyclohexylamine)

CAS NO.：6864-37-5
Empirical Formula: C15H30N2
Molecular Weight: 238.41
MDL number: MFCD00075535
EINECS: 229-962-1
SAFETY DATA SHEET (SDS)
Update Date: 2024-11-11 14:41:12

What is 4,4'-Methylenebis(2-methylcyclohexylamine)?

Chemical properties

Colorless transparent viscous liquid

Chemical properties

4,4'-Methylenebis(2-methylcyclohexylamine) (MACM) is a colorless/yellowish liquid with a water solubility of 3.6 g/l at 20°C and a vapor pressure of 0.08 Pa at 20°C. The measured log KOW is 2.51 at 25 °C. However, due to the Lewis base character of the substance, the experimental determination of the log KOW is inaccurate. The density of the substance (ca. 0.95 g/cm3 at 20°C) is virtually the same as that of water.

The Uses of 4,4'-Methylenebis(2-methylcyclohexylamine)

4,4'-Methylenebis(2-methylcyclohexylamine) can be used as epoxy curing agents.

The Uses of 4,4'-Methylenebis(2-methylcyclohexylamine)

4,4′-Methylenebis(2-methylcyclohexylamine) (MMCA) may be used:

in the synthesis of fully aliphatic polyimides
in the synthesis of fully aliphatic polyimide-siloxanes (APISiO)
to prepare epoxy resin with trimethylolpropane triglycidyl ether, used for the characterization of the structural organization in dragline silk by transmission X-ray microscopy (STXM).

General Description

4,4′-Methylenebis(2-methylcyclohexylamine) is an alicyclic diamine.

Hazard

Moderately toxic by inhalation.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic by inhalation.When heated to decomposition it emits toxic vapors ofNOx.

Synthesis

Add 2000kg 3,3'-dimethyl-4,4'-diaminodiphenylmethane and 2000kg tetrahydrofuran to an autoclave with a volume of 6000L. Then, 100Kg 5% Ru/Al2O3 catalyst and 100Kg aluminum ammonium sulfate will be added, and the air in the autoclave will be replaced with hydrogen after sealing. Pour in 6MPa hydrogen, heat the autoclave to 160°C, adjust the hydrogen valve to maintain the pressure at 8MPa, and stir vigorously for 4 hours. After cooling, samples were taken and detected by gas chromatography-mass spectrometry. The detection results showed that the conversion rate of 3,3'-dimethyl-4,4-diaminodicyclohexylmethane was 100%, and the 4,4'-Methylenebis(2-methylcyclohexylamine) (MACM) yield was 99.4%.

Properties of 4,4'-Methylenebis(2-methylcyclohexylamine)

Melting point:	-7°C
Boiling point:	93-100 °C(lit.)
Density	0.94 g/mL at 25 °C(lit.)
vapor pressure	0.08Pa at 20℃
refractive index	n20/D 1.499(lit.)
Flash point:	>230 °F
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	3.6g/l
form	clear liquid
pka	11.03±0.70(Predicted)
color	Colorless to Light yellow to Light orange
PH	11 (3.6g/l, H2O, 20℃)
explosive limit	0.5-2.8%(V)
Water Solubility	2.01g/L at 20℃
CAS DataBase Reference	6864-37-5(CAS DataBase Reference)
EPA Substance Registry System	Cyclohexanamine, 4,4'-methylenebis[2-methyl- (6864-37-5)

Safety information for 4,4'-Methylenebis(2-methylcyclohexylamine)

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 Environment GHS09
GHS Hazard Statements	H302:Acute toxicity,oral H311:Acute toxicity,dermal H314:Skin corrosion/irritation H330:Acute toxicity,inhalation H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.