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Methylene-bis(4-cyclohexylisocyanate)

Methylene-bis(4-cyclohexylisocyanate)
Methylene-bis(4-cyclohexylisocyanate) structure
CAS No.
5124-30-1
Chemical Name:
Methylene-bis(4-cyclohexylisocyanate)
Synonyms
smdi;dmdi;picm;rmdi;cp99173;hylenew;4,4'-HMDI;Dicyclohex;reducedmdi;saturatedmdi
CBNumber:
CB5412149
Molecular Formula:
C15H22N2O2
Formula Weight:
262.35
MOL File:
5124-30-1.mol

Methylene-bis(4-cyclohexylisocyanate) Properties

Melting point:
25°C
Boiling point:
168 °C / 1.5mmHg
Density 
1.066 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.497(lit.)
Flash point:
>230 °F
form 
Liquid
color 
Clear colorless
Water Solubility 
Insoluble/Reactive
BRN 
2217800
Exposure limits
TLV-TWA 0.0535 mg/m3 (0.005 ppm) (ACGIH).
FDA 21 CFR
177.1680
CAS DataBase Reference
5124-30-1(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances
4,4'-METHYLENEBIS(CYCLOHEXYL ISOCYANATE)
EWG's Food Scores
3
FDA UNII
4CT385M7K2
NIST Chemistry Reference
Cyclohexane, 1,1'-methylenebis[4-isocyanato-(5124-30-1)
EPA Substance Registry System
1,1-Methylene bis(4-isocyanatocyclohexane) (5124-30-1)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS06,GHS08,GHS07,GHS09
Signal word  Danger
Hazard statements  H330-H370-H410-H315-H317-H319-H331-H334-H335
Precautionary statements  P280a-P305+P351+P338-P501a-P260-P264-P270-P271-P272-P273-P302+P352+P333+P313+P363-P304+P340+P310-P305+P351+P338+P337+P313-P307+P311-P391-P405-P501-P261-P280-P284-P304+P340+P312-P342+P311-P403+P233
Hazard Codes  T
Risk Statements  23-36/37/38-42/43
Safety Statements  26-28-38-45-1/2
RIDADR  UN 2206 6.1/PG 2
WGK Germany  1
RTECS  NQ9250000
TSCA  Yes
HazardClass  6.1
PackingGroup  III

Methylene-bis(4-cyclohexylisocyanate) price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 388386 4,4′-Methylenebis(cyclohexyl isocyanate), mixture of isomers 90% 5124-30-1 100ml $46.1 2020-08-18 Buy
Sigma-Aldrich 33490 HMDI analytical standard 5124-30-1 2ml-r $59.5 2020-08-18 Buy
TCI Chemical D2380 Dicyclohexylmethane 4,4'-Diisocyanate (mixture of isomers) >90.0%(GC) 5124-30-1 25g $17 2020-06-24 Buy
TCI Chemical D2380 Dicyclohexylmethane 4,4'-Diisocyanate (mixture of isomers) >90.0%(GC) 5124-30-1 100g $25 2020-06-24 Buy
Sigma-Aldrich 388386 4,4′-Methylenebis(cyclohexyl isocyanate), mixture of isomers 90% 5124-30-1 500ml $106 2020-08-18 Buy

Methylene-bis(4-cyclohexylisocyanate) Chemical Properties,Uses,Production

Chemical Properties

Liquid.Soluble in acetone;reacts with water or ethanol.

Chemical Properties

DMDI is a clear, colorless to light-yellow liquid.

Uses

Methylene bis(4-cyclohexylisocyanate) isused to produce urethane foam with colorstability.

Uses

In the manufacture of polymers

Uses

HMDI has excellent light stability and the stability of the six membered ring structure, has excellent weather resistance and excellent mechanical properties of polyurethane material, and is especially suitable for the production of high performance elastic body, a water polyurethane resin and UV resin.

Definition

ChEBI: A diisocyanate consisting of dicyclohexylmethane with two isocyanate groups at the 4- and 4'-positions.

General Description

Clear colorless to light-yellow liquid.

Air & Water Reactions

Reacts with water to form CO2

Reactivity Profile

Isocyanates and thioisocyanates, such as Methylene-bis(4-cyclohexylisocyanate), are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].

Hazard

Strong skin and eye irritant. Respiratorysensitization and lower respiratory tract irritant.

Health Hazard

Studies on test animals indicate that methy-lene bis(4-cyclohexylisocyanate) is highlytoxic by an inhalation route and can causesevere skin reaction. Exposure to 20 ppmfor 5 hours produced irritation of the respiratory tract, tremor, convulsion, congestion oflungs, and edema in rats. The symptoms atlower levels were decreased as to respirationrate and pulmonary irritation.
Contact with the skin can produce severeirritation, erythema, and edema. The oraltoxicity of this compound is very low.
LD50 value, oral (rats): 9900 mg/kg
There is no report of the compound’smutagenicity or carcinogenicity.

Fire Hazard

Flash point data for Methylene-bis(4-cyclohexylisocyanate) are not available. Methylene-bis(4-cyclohexylisocyanate) is probably combustible.

Safety Profile

Poison by inhalation. Mildly toxic by ingestion. When heated to decomposition it emits very toxic fumes of NOx and CN-.

Potential Exposure

A potential danger to those involved in the manufacture of this compound or its use in the production of light-stable, nonyellowing polyurethane resins.

Shipping

UN2206 Isocyanates, toxic, n.o.s. or Isocyanate solutions, toxic, n.o.s., flash point .61C and boiling point ,300C, Hazard Class: 6.1; Labels: 6.1-Poisonous materials., Technical Name Required.

Incompatibilities

May form explosive mixture with air. Isocyanates are highly flammable and reactive with many compounds, even with themselves. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Reaction with moist air, water or alcohols may form amines and insoluble polyureas and react exothermically, releasing toxic, corrosive or flammable gases, including carbon dioxide; and, at the same time, may generate a violent release of heat increasing the concentration of fumes in the air. Incompatible with amines, aldehydes, alkali metals, ammonia, carboxylic acids, caprolactum, alkaline materials, glycols, ketones, mercaptans, hydrides, organotin catalysts, phenols, strong acids, strong bases, strong reducing agents such as hydrides, urethanes, ureas. Elevated temperatures or contact with acids, bases, tertiary amines, and acylchlorides may cause explosive polymerization. Attacks some plastics, rubber and coatings. Contact with metals may evolve flammable hydrogen gas. May accumulate static electrical charges, and may cause ignition of its vapors. May slowly polymerize if heated above 122F/50C. Contact with metals may evolve flammable hydrogen gas.

Waste Disposal

Methylene bis(4-cyclohexylisocyanate) isdissolved in acetone or any other combustible solvent and burned in a chemicalincinerator equipped with an afterburner andscrubber.

Methylene-bis(4-cyclohexylisocyanate) Preparation Products And Raw materials

Raw materials

Preparation Products


Methylene-bis(4-cyclohexylisocyanate) Suppliers

Global( 81)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30039 58
Zhonglan Industry Co., Ltd.
(86) 531-82956570
(86) 531-82956571 sales@zhonglanindustry.com CHINA 4895 58
BOC Sciences
1-631-619-7922 1-631-619-7922
1-631-614-7828 inquiry@bocsci.com United States 20039 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35434 58
HENAN BON INDUSTRIAL CO.,LTD
0371-55170695
info@hnbon.com CHINA 20534 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47486 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32444 55
Chemwill Asia Co.,Ltd. 86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23977 58
J & K SCIENTIFIC LTD. 400-666-7788 010-82848833-
86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 400-660-8290 21-61259100-
86-21-61259102 sh@meryer.com China 40268 62

View Lastest Price from Methylene-bis(4-cyclohexylisocyanate) manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-09 Methylene-bis(4-cyclohexylisocyanate)
5124-30-1
US $1.00 / KG 1KG 99% 100kg career henan chemical co

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