4,4'-Diphenylmethane diisocyanate

$13 - $305

Price

Brand	Packaging	Price	Product name
Alfa Aesar L15740	25g	$29.2	4,4'-Methylenebis(phenyl isocyanate), 98%
Alfa Aesar L15740	100g	$42.8	4,4'-Methylenebis(phenyl isocyanate), 98%
Alfa Aesar L15740	500g	$76.6	4,4'-Methylenebis(phenyl isocyanate), 98%
Frontier Specialty Chemicals JK122268	25g	$13	4,4′-Methylenebis(phenyl isocyanate)
Frontier Specialty Chemicals JK122268	100g	$18	4,4′-Methylenebis(phenyl isocyanate)
Sigma-Aldrich 256439	50g	$55.2	4,4′-Methylenebis(phenyl isocyanate)
Sigma-Aldrich 8.20797	100mL	$46.4	Diphenylmethane 4,4′-diisocyanate
Sigma-Aldrich 256439	500g	$82.6	4,4′-Methylenebis(phenyl isocyanate)
Sigma-Aldrich 8.20797	500mL	$83.3	Diphenylmethane 4,4′-diisocyanate
Sigma-Aldrich 33428	100mg	$84.8	4,4′-MDI

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Melting point	38-44 °C
Boiling point	392 °C
Density	1.19
vapor pressure	0.066 hPa (20 °C)
refractive index	1.5906 (estimate)
Flash point	196 °C
storage temp.	-20°C
solubility	2g/l (decomposition)
Specific Gravity	1.180
color	White to Almost white
explosive limit	0.4%(V)
Water Solubility	decomposes
FreezingPoint	37℃
Sensitive	Moisture Sensitive/Lachrymatory
BRN	797662
Exposure limits	TLV-TWA 0.051 mg/m³ (0.005 ppm) (ACGIH and NIOSH); ceiling (air) 0.204 mg/m³ (0.02 ppm)/10 min (NIOSH and OSHA); IDLH 102 mg/m³ (10 ppm).
Dielectric constant	10.0（Ambient）
Stability	Stable. Combustible. Incompatible with strong oxidizing agents. Reacts violently with alcohols.
CAS DataBase Reference	101-68-8(CAS DataBase Reference)
IARC	3 (Vol. 19, Sup 7, 71) 1999
NIST Chemistry Reference	Benzene, 1,1'-methylenebis[4-isocyanato-(101-68-8)
EPA Substance Registry System	4,4'-Methylenedi(phenyl isocyanate) (101-68-8)