NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Toxicological Profile for 4,4’-Methylenebis(2-chloroaniline) (MBOCA). Atlanta (GA): Agency for Toxic Substances and Disease Registry (US); 2017 Oct.
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)
Characteristic | Information | Reference |
---|---|---|
Chemical name | 4,4’-Methylenebis(2-chloroaniline) | |
Synonym(s) and registered trade name(s)a | MBOCA, 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 others | CIS 1992; HSDB 1991; NRC 1981; OHM/TADS 1985; Smith and Woodward 1983 |
Chemical formula | C13H12Cl2N2 | IARC 1974 |
Chemical structure | NRC 1981 | |
CAS Registry Number | 101-14-4 | 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)
Property | Information | Reference |
---|---|---|
Molecular weight | 267 | IARC 1974 |
Color | ||
Pure form | Colorless crystals | IARC 1974 |
Technical form | Yellow, tan, or brown pellets | Smith and Woodward 1983; NRC 1981 |
Physical state | Solid | HSDB 1991 |
Melting point | 110 °C | HSDB 1991 |
Boiling point | No data | |
Density at 20 °C | 1.44 g/mL | NRC 1981; Sax and Lewis 1987 |
Odor | Nearly odorless | NRC 1981 |
Odor threshold: | No data | |
Solubility: | ||
Water at 24 °C | 13.9 mg/L | Voorman and Penner 1986a |
Organic solvents | Soluble in hot methyl ethyl ketone, alcohol, acetones, trichloroethylene, toluene, ether, esters, and lipids | HSDB 1991; OHM/TADS 1985; Smith and Woodward 1983 |
Partition coefficients: | ||
Log Kow | 3.94a | HSDB 1991 |
Log Koc | 4810 | HSDB 1991 |
Vapor pressure | ||
at 25 °C | 1.0×10−5 mmHg | Smith and Woodward 1983 |
at 60 °C | 1.3×10−5 mmHg | NRC 1981 |
at 100 °C | 3.5×10−5 mmHg | Smith and Woodward 1983 |
at 120 °C | 5.4×10−5 mmHg | NRC 1981 |
Henry’s law constant at 25 °C | 4×10−11 atm m3/mole | |
Autoignition temperature | No data | |
Flashpoint | No data | |
Flammability limits | No data | |
Conversion factors | No data | |
Explosive limits | No data |
- a
Estimated value.