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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Phase change data
Go To: Top, 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 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 313.57 | K | N/A | Lebedev, Rabinovich, et al., 1977 | 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, 2 | see Lebedev, Rabinovich, et al., 1977, 2; ALS |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.5249 | 313.57 | Lebedev, Evstropov, et al., 1977 | DH |
6.5249 | 313.57 | Lebedev, Rabinovich, et al., 1977, 3 | 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 | DH |
20.8 | 313.57 | Lebedev, Rabinovich, et al., 1977, 3 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedev, Evstropov, et al., 1977
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
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]
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]
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, Evstropov, et al., 1977, 2
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, 2
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, Rabinovich, et al., 1977, 3
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]
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, Phase change data, References
- Symbols used in this document:
Ttriple Triple point temperature 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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