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.

Product Information

Parameters


Melting point38-44 °C
Boiling point392 °C
density1.19
vapor pressure0.066 hPa (20 °C)
refractive index1.5906 (estimate)
Fp196 °C
storage temp.-20°C
solubility2g/l (decomposition)
formsolid
colorWhite to Almost white
Specific Gravity1.18
explose limit0.4%(V)
Water Solubilitydecomposes
FreezingPoint37℃
SensitiveMoisture Sensitive/Lachrymatory
BRN797662
Exposure limitsTLV-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 constant10.0(Ambient)
Stability:Stable. Combustible. Incompatible with strong oxidizing agents. Reacts violently with alcohols.
CAS DataBase Reference101-68-8(CAS DataBase Reference)
NIST Chemistry ReferenceBenzene, 1,1'-methylenebis[4-isocyanato-(101-68-8)
IARC3 (Vol. 19, Sup 7, 71) 1999
EPA Substance Registry System4,4'-Methylenedi(phenyl isocyanate) (101-68-8)


Safety Information


Hazard CodesXn,T,C
Risk Statements42/43-36/37/38-20-48/20-40
Safety Statements45-36/37-23
RIDADR2206
OEBD
OELTWA: 0.05 mg/m3 (0.005 ppm), Ceiling: 0.2 mg/m3 (0.020 ppm) [10-minute]
WGK Germany1
RTECSNQ9350000
Autoignition Temperature>600 °C
Hazard NoteToxic/Corrosive/Lachrymatory/Moisture Sensitive
TSCAYes
HazardClass6.1
PackingGroupII
HS Code29291090
Hazardous Substances Data101-68-8(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 9000 mg/kg
IDLA75 mg/m3


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FAQ

Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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