Benzene, 1,1'-methylenebis[4-isocyanato-
- Formula: C15H10N2O2
- Molecular weight: 250.2521
- IUPAC Standard InChIKey: UPMLOUAZCHDJJD-UHFFFAOYSA-N
- CAS Registry Number: 101-68-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: p,p'-Diphenylmethane diisocyanate; Isocyanic acid, methylenedi-p-phenylene ester; p,p'-Methylenebis[phenyl isocyanate]; Bis(p-isocyanatophenyl)methane; Bis(1,4-isocyanatophenyl)methane; Bis(4-isocyanatophenyl)methane; Caradate 30; Desmodur 44; Diphenylmethane diisocyanate; Diphenylmethane p,p'-diisocyanate; Diphenylmethane 4,4'-diisocyanate; Hylene M50; Isonate 125 MF; Isonate 125M; Methylenebis[p-phenyl isocyanate]; Methylenebis[p-phenylene isocyanate]; Methylenebis[4-isocyanatobenzene]; Methylenebis[4-phenyl isocyanate]; Methylenebis[4-phenylene isocyanate]; Methylenedi(p-phenyl isocyanate); Methylenedi(p-phenylene diisocyanate); Methylenedi(p-phenylene isocyanate); MDI; MDR; Nacconate 300; 4,4'-Diisocyanatodiphenylmethane; 4,4'-Methylenebis[phenyl isocyanate]; 4,4'-Methylenedi(phenylene isocyanate); 4,4'-Diphenylmethane diisocyanate; 1,1'-Methylenebis(4-isocyanatobenzene); NCI-C50668; Di-(4-isocyanatophenyl)methane; Difenil-metan-diisocianato; Diphenylmethan-4,4'-diisocyanat; Methylbisphenyl isocyanate; Methylene bisphenyl isocyanate; 4,4'-Diisocyanate de diphenylmethane; 4,4'-Methylenedi-p-phenylene diisocyanate; Difenylmethaan-dissocyanaat; Isonate; 4,4'-Methylenediphenyl isocyanate; Rubinate 44; UN 2489; Diphenylmethane 4,4-diisocyanate; Diphenylmethyl diisocyanate; Methylene diphenyl diisocyanate; Methylenedi-p-phenyl diisocyanate; Nocconate 300; Methylenebisphenylene diisocyanate; 4,4'-Methylenediphenyl diisocyanate; Isocyanic acid, diphenylmethylene ester; Diphenylmethylene diisocyanate
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 45.1 ± 5.0 | kcal/mol | Ccb | Zhuravlev, Selivanov, et al., 1975 | Heat of combustion by Selivanov and Konstantinov, 1970 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°liquid | -1652. ± 13. | kcal/mol | Ccb | Zalykin and Strepikheev, 1966 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔfH°solid | -12.7 ± 0.79 | kcal/mol | Ccb | Lebedev, Evstropov, et al., 1977 | see Lebedev, Rabinovich, et al., 1977; ALS |
ΔfH°solid | -13.3 ± 3.0 | kcal/mol | Ccb | Zhuravlev, Selivanov, et al., 1975 | Heat of combustion by Selivanov and Konstantinov, 1970; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1740. ± 0.79 | kcal/mol | Ccb | Lebedev, Evstropov, et al., 1977 | see Lebedev, Rabinovich, et al., 1977; ALS |
ΔcH°solid | -1739.0 ± 3.0 | kcal/mol | Ccb | Selivanov and Konstantinov, 1970 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 79.47 | cal/mol*K | N/A | Lebedev, Evstropov, et al., 1977, 2 | DH |
S°solid,1 bar | 79.47 | cal/mol*K | N/A | Lebedev, Rabinovich, et al., 1977, 2 | DH |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
73.37 | 298.15 | Lebedev, Evstropov, et al., 1977, 2 | T = 12 to 355 K. Data deposited VINITI, No 4328-76, 14 December 1976.; DH |
74.8 | 300. | Lebedev, Rabinovich, et al., 1977, 2 | T = 13 to 400 K. Data given graphically. Value estimated from graph.; DH |
58.51 | 334. | Zalikin and Strepikheev, 1966 | T = 46 to 78°C, mean value.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 313.57 | K | N/A | Lebedev, Evstropov, et al., 1977, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 313.57 | K | N/A | Lebedev, Rabinovich, et al., 1977, 3 | Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
21.6 | 358. | A | Stephenson and Malanowski, 1987 | Based on data from 343. to 413. K.; AC |
22.4 | 457. | A | Stephenson and Malanowski, 1987 | Based on data from 442. to 530. K.; AC |
18.6 ± 0.5 | 442. | V | Zalykin and Strepikheev, 1966 | ALS |
21.7 | 483. | A | Zalikin and Strepikheev, 1966 | Based on data from 442. to 530. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
442. to 530. | 2.41420 | 969.926 | -253.28 | Zalikin and Strepikheev, 1966 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.52 ± 0.02 | 313.6 | C | Lebedev, Evstropov, et al., 1977 | see Lebedev, Rabinovich, et al., 1977; ALS |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.5249 | 313.57 | Lebedev, Evstropov, et al., 1977, 2 | DH |
6.5249 | 313.57 | Lebedev, Rabinovich, et al., 1977, 2 | DH |
6.52 | 313.6 | Domalski and Hearing, 1996 | See also Lebedev, Evstropov, et al., 1977, 3.; AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
20.8 | 313.57 | Lebedev, Evstropov, et al., 1977, 2 | DH |
20.8 | 313.57 | Lebedev, Rabinovich, et al., 1977, 2 | DH |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Zhuravlev, Selivanov, et al., 1975
Zhuravlev, E.Z.; Selivanov, V.D.; Mulyanov, P.V.; Konstantinov, I.I.,
Physicochemical properties of 4,4'-dicyclohexylmethane diisocyanate,
J. Appl. Chem. USSR, 1975, 1137-1139. [all data]
Selivanov and Konstantinov, 1970
Selivanov, V.D.; Konstantinov, I.I.,
Correction of the heat of combustion of diphenylmethane-4,4'-diisocyanate,
J. Appl. Chem., 1970, 43, 2600-2601. [all data]
Zalykin and Strepikheev, 1966
Zalykin, A.A.; Strepikheev, Yu.A.,
Certain physicochemical constants of 4,4'-diaminodiphenylmethane and diphenylmethane 4,4'diisocyanate,
J. Appl. Chem. USSR (Engl. Transl.), 1966, 39, 2448, In original 2607. [all data]
Lebedev, Evstropov, et al., 1977
Lebedev, B.V.; Evstropov, A.A.; Sadikov, G.B.; Larina, L.F.,
Thermodynamics of di(4-isocyanatophenyl)methane,
Russ. J. Phys. Chem. (Engl. Transl.), 1977, 51, 762-763. [all data]
Lebedev, Rabinovich, et al., 1977
Lebedev, B.V.; Rabinovich, I.B.; Kiparisova, E.G.; Evstropov, A.A.; Korshak, V.V.; Pankratov, V.A.; Larina, L.F.,
Thermodynamics of the polycyclotrimerization of aromatic dicyanates and diisocyanates,
Dokl. Phys. Chem. (Engl. Transl.), 1977, 237, 1081-1084, In original 383. [all data]
Lebedev, Evstropov, et al., 1977, 2
Lebedev, B.V.; Evstropov, A.A.; Sadikov, G.B.; Larina, L.F.,
Thermodynamics of di(4-isocyanatophenyl)methane,
Zhur. Fiz. Khim., 1977, 51, 1285. [all data]
Lebedev, Rabinovich, et al., 1977, 2
Lebedev, B.V.; Rabinovich, I.B.; Kiparisova, Y.G.; Evstropov, A.A.; Korshak, V.V.; Pankratov, V.A.; Larina, L.F.,
Thermodynamics of the polycyclotrimerization of aromatic dicyanates and diisocyanates,
Dokl. Akad. Nauk, 1977, SSSR 237, 383-386. [all data]
Zalikin and Strepikheev, 1966
Zalikin, A.A.; Strepikheev, Yu.A.,
Some physicochemical constants of 4,4'-diaminodiphenylmethane and 4,4'-diphenylmethanediisocyanate,
Zhur. Priklad. Khim., 1966, 39, 2607. [all data]
Lebedev, Rabinovich, et al., 1977, 3
Lebedev, B.V.; Rabinovich, I.B.; Kiparisova, E.G.; Evstropov, A.A.; Korshak, V.V.; Pankratov, V.A.,
Thermodynamics of the polycyclotrimerization of aromatic dicyanates and diisocyanates,
Dokl. Akad. Nauk SSSR, 1977, 237, 383-6. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Lebedev, Evstropov, et al., 1977, 3
Lebedev, B.V.; Evstropov, A.A.; Sadikov, G.B.; Larina, L.F.,
Russ. J. Phys. Chem., 1977, 51, 762. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) Ttriple Triple point temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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