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Toxicological Profile for 4,4’-Methylenebis(2-chloroaniline) (MBOCA). Atlanta (GA): Agency for Toxic Substances and Disease Registry (US); 2017 Oct.

CHAPTER 4CHEMICAL AND PHYSICAL INFORMATION

4.1. CHEMICAL IDENTITY

Information regarding the chemical identity of MBOCA is located in Table 4-1.

4.2. PHYSICAL AND CHEMICAL PROPERTIES

Information regarding the physical and chemical properties of MBOCA is located in Table 4-2.

Tables

Table 4-1Chemical Identity of 4,4’-Methylenebis(2-chloroaniline) (MBOCA)

CharacteristicInformationReference
Chemical name4,4’-Methylenebis(2-chloroaniline)
Synonym(s) and registered trade name(s)aMBOCA, 3,3’-dichloro-4,4’-diaminodiphenylmethane; 4,4’-methylene(bis)-chloroaniline; 4,4’-methylenebis(o-chloroaniline); 4,4’-methylene-bis[2-chlorobenzenamine]; bis(3-chloro-4-aminopropyl) methane; aniline, 4,4’methylene-bis[2-chloro-; bis-(4-amino-3-chlorophenyl) methane; di(4-amino-3-chlorophenyl) methane; bis amine; MCA, CL-MDA; DACPM; Cuamin-M; Activator-M; CA-800; DAC; Bis-Amine A; Curene 442; MOCA; and othersCIS 1992; HSDB 1991; NRC 1981; OHM/TADS 1985; Smith and Woodward 1983
Chemical formulaC13H12Cl2N2 IARC 1974
Chemical structure Image ch4if1.jpg NRC 1981
CAS Registry Number101-14-4 HSDB 1991
a

MBOCA trade names that are not in use: Curalin M, Curalon M, Cyanaset, and LD813.

CAS = Chemical Abstracts Service

Table 4-2Physical and Chemical Properties of 4,4’-Methylenebis(2-chloroaniline) (MBOCA)

PropertyInformationReference
Molecular weight267 IARC 1974
Color
 Pure formColorless crystals IARC 1974
 Technical formYellow, tan, or brown pelletsSmith and Woodward 1983; NRC 1981
Physical stateSolid HSDB 1991
Melting point110 °C HSDB 1991
Boiling pointNo data
Density at 20 °C1.44 g/mLNRC 1981; Sax and Lewis 1987
OdorNearly odorless NRC 1981
Odor threshold:No data
Solubility:
 Water at 24 °C13.9 mg/L Voorman and Penner 1986a
 Organic solventsSoluble in hot methyl ethyl ketone, alcohol, acetones, trichloroethylene, toluene, ether, esters, and lipidsHSDB 1991; OHM/TADS 1985; Smith and Woodward 1983
Partition coefficients:
 Log Kow3.94a HSDB 1991
 Log Koc4810 HSDB 1991
Vapor pressure
 at 25 °C1.0×10−5 mmHg Smith and Woodward 1983
 at 60 °C1.3×10−5 mmHg NRC 1981
 at 100 °C3.5×10−5 mmHg Smith and Woodward 1983
 at 120 °C5.4×10−5 mmHg NRC 1981
Henry’s law constant at 25 °C4×10−11 atm m3/mole
Autoignition temperatureNo data
FlashpointNo data
Flammability limitsNo data
Conversion factorsNo data
Explosive limitsNo data
a

Estimated value.