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Methylenediphenyl Diisocyanate CAS#101-68-8

Versatile Organic Chemistry Applications：Can be used as raw materials, intermediates, and reagents in organic chemical synthesis and high-performance polymer research.

Functional Material Development：Suitable for preparing functional materials, new material synthesis, and specialized chemical products.

Polymer and Additive Use：Applicable in polyurethane production, diphenylmethane derivatives, and as additives for polymers.

Analytical and Research Utility：Can be used for analyzing standard samples and in research involving pyridines, halogenated heterocycles, and isocyanate esters.

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Product Description

Products Description of Methylenediphenyl Diisocyanate CAS# 101-68-8

4,4'-Diphenylmethane diisocyanate (MDI) and its derivatives are essential chemical industry materials. They are used in polyurethane production, as raw materials/intermediates for high-performance polymers, in functional material development, and in analytical research and chemical formulation additives.

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Product Information

Parameters

Melting point	38-44 °C
Boiling point	392 °C
density	1.19
vapor pressure	0.066 hPa (20 °C)
refractive index	1.5906 (estimate)
Fp	196 °C
storage temp.	-20°C
solubility	2g/l (decomposition)
form	solid
color	White to Almost white
Specific Gravity	1.18
explose 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)
NIST Chemistry Reference	Benzene, 1,1'-methylenebis[4-isocyanato-(101-68-8)
IARC	3 (Vol. 19, Sup 7, 71) 1999
EPA Substance Registry System	4,4'-Methylenedi(phenyl isocyanate) (101-68-8)

Safety Information

Hazard Codes	Xn,T,C
Risk Statements	42/43-36/37/38-20-48/20-40
Safety Statements	45-36/37-23
RIDADR	2206
OEB	D
OEL	TWA: 0.05 mg/m3 (0.005 ppm), Ceiling: 0.2 mg/m3 (0.020 ppm) [10-minute]
WGK Germany	1
RTECS	NQ9350000
Autoignition Temperature	>600 °C
Hazard Note	Toxic/Corrosive/Lachrymatory/Moisture Sensitive
TSCA	Yes
HazardClass	6.1
PackingGroup	II
HS Code	29291090
Hazardous Substances Data	101-68-8(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 9000 mg/kg
IDLA	75 mg/m3

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