Dicyclohexylamine

  • N-cyclohelylcyclohexamine
  • didecahydrodiphenylamine
Formula
(C6H11)2NH
Structure
Description
A colorless liquid with a faint fishlike odor.
Uses
Intermediate, insecticides, plasticizer, corrosion inhibitors, antioxidants in rubber, lubricating oils, fuels, catalysts for paint, varnishes & inks, detergents, extractant.

Registry Numbers and Inventories.
CAS
101-83-7
EC (EINECS/ELINCS)
202-980-7
EC Index Number
612-066-00-3
EC Class
Harmful; Corrosive; Dangerous for the Environment
R 22 34 50/53
S 26 36/37/39 45 60 61
RTECS
HY4025000
RTECS class
Tumorigen; Mutagen; Primary Irritant
UN (DOT)
2565
Merck
13,3122
Beilstein/Gmelin
605923
Beilstein Reference
4-12-00-00022
Swiss Giftliste 1
G-3636
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C12H23N
Formula mass
181.32
Melting point, °C
-2
Boiling point, °C
255.8
Vapor pressure, mmHg
0.02 (25 C)
Vapor density (air=1)
6.25
Density
0.936 g/cm3 (0 C)
Solubility in water
Slightly soluble
Viscosity
8.8 mPas 20 C
Surface tension
34.22 g/s2 (15 C)
Refractive index
1.4819 (20 C)
pKa/pKb
3.60 (pKb)
Partition coefficient, pKow
3.69
Heat of vaporization
49.4 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Wash clothing before reuse. Discard contaminated shoes.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Disposal code
5
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents, acids, acid chlorides, acid anhydrides, chloroformates.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
95
Autoignition, °C
240
Upper exp. limit, %
7.4
Lower exp. limit, %
0.8
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
May burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OEL-RUSSIA:STEL 1 mg/m3;Skin
Poison_Class
3
Exposure effects
Drowsiness, dizziness, and lightheadedness have been reported. Exposed humans have developed anxiety and apprehension. In experimental animals, CNS stimulation, seizures and brain degenerative changes were observed. The potential teratogenic effects of cyclohexylamine have been assessed as probably without significance in the setting of industrial exposure. <br>Testicular atrophy was seen in some rats with chronic exposure. Based on a no-effect dose for the testes of rats, it was concluded that the acceptable daily intake in humans is 0 to 11 mg/kg/day.
   Ingestion
Harmful if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.
   Skin
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause severe irritation and possible burns.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Remove contaminated clothing and shoes. Destroy contaminated shoes.
   Eyes
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
2565
Response guide
Hazard class
8
Packing Group
III
 
7. Aliphatic amines
HS Code
2921 30 99
 
Std. Transport #
4935634