4,4'-Diaminodicyclohexyl methane Property

Melting point:

60-65°C

Boiling point:

330-331°C

Density 

0.95 g/mL at 25 °C(lit.)

vapor pressure 

<0.1 mm Hg ( 38 °C)

refractive index 

1.5032 (estimate)

Flash point:

>230 °F

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

solubility 

Chloroform (Slightly), Methanol (Slightly)

form 

powder to lump to clear liquid

pka

10.87±0.70(Predicted)

color 

White or Colorless to Almost white or Almost colorless

Water Solubility 

Insoluble (<0.1 g/100 mL)

BRN 

2079179

LogP

2.03 at 25℃

CAS DataBase Reference

1761-71-3(CAS DataBase Reference)

NIST Chemistry Reference

Cyclohexanamine, 4,4'-methylenebis-(1761-71-3)

EPA Substance Registry System

4,4'-Methylenebis(cyclohexylamine) (1761-71-3)

Safety

Hazard Codes 

T+,N,C

Risk Statements 

26-34-51/53-48/22-43-35-22

Safety Statements 

26-28-36/37/39-45-61-50-14

RIDADR 

UN 2928 6.1/PG 2

WGK Germany 

2

RTECS 

GX1530000

F 

10-34

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

29213000

Toxicity

LC50 inhalation in mouse: 400mg/m3/4H

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H373May cause damage to organs through prolonged or repeated exposure

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

4,4'-Diaminodicyclohexyl methane Chemical Properties,Usage,Production

Uses

4,4'-Methylenebis(cyclohexylamine) is a potential high inhibitive and high temperature resistant shale inhibitor.

Description

4,4'-Diaminodicyclohexyl methane is a sodium salt of a cyclic anhydride that is used as a specific treatment for removing dodecanedioic acid from fatty acids. The reaction solution is stable at pH 4-5 and has a viscosity of less than 1000 cps. It has good stability in the presence of amines and can be used in chromatographic science, including chromatography and gas-liquid chromatography. The UV absorption maxima for the acid complex are 195 nm and 240 nm.

Chemical Properties

Beige solidified mass or fragments

Uses

4,4'-Diaminodicyclohexyl methane be used as organic intermediates and epoxy curing agents.

Uses

4,4'-Diaminodicyclohexylmethane is used as epoxy curing agents. It is a versatile intermediate to produce leather, rubber products, plastics, dyes, and photo sensitive polymers. It is used in manufacturing diisocyanates and polyamides. It is also used as lubricant additive as and corrosion inhibitor.

Synthesis Reference(s)

Journal of the American Chemical Society, 75, p. 1156, 1953 DOI: 10.1021/ja01101a044

General Description

Yellowish white liquid or brown solid paste.

Air & Water Reactions

Sensitive to decomposition in air and light . Insoluble in water.

Reactivity Profile

4,4'-Diaminodicyclohexyl methane neutralizes acids in weakly exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.

Health Hazard

ACUTE/CHRONIC HAZARDS: 4,4'-Diaminodicyclohexyl methane is corrosive.

Fire Hazard

4,4'-Diaminodicyclohexyl methane is probably combustible.

Flammability and Explosibility

Non flammable

Toxicology

On resorption, predominant clinical signs of intoxication were hyperexcitability, excessive salivation, and convulsions in animals; repeated oral dosing (50 – 100 mg kg -1 d -1 in rats and mice for 10 and 16 d, respectively, 50 mg/kg in dogs for up to 82 weeks) resulted in gastrointestinal hemorrhagic inflammations, nephritis, and fatty changes to the liver. No changes in methemoglobin or in other hematological parameters were induced in cats on repeated doses of 50 and 100 mg kg -1 d -1, given twice per week over 2 months. Several in vitro and in vivo mutagenicity studies gave no evidence of a mutagenic or clastogenic potential.