Diisopropanolamine

  • DIPA
  • Bis(2-propanol) amine
  • 1,1'-Iminodi-2-propanol
  • 1,1'-Iminodipropan-2-ol
Formula
C6H15NO2
Structure
Description
Colorless liquid or white to light yellow crystalline solid, hygroscopic.
Uses
Chemical intermediate, agent for removal of hydrogen sulfide from natural gas.

Registry Numbers and Inventories.
CAS
110-97-4
EC (EINECS/ELINCS)
203-820-9
EC Index Number
603-083-00-7
EC Class
Irritant
RTECS
UB6600000
RTECS class
Primary Irritant
UN (DOT)
2733
Merck
13,3218
Beilstein/Gmelin
605363
Beilstein Reference
3-04-00-00761
Swiss Giftliste 1
G-1924
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H15NO2
Formula mass
133.19
Melting point, °C
36 - 42
Boiling point, °C
249
Vapor pressure, mmHg
0.02 (25 C)
Vapor density (air=1)
4.59
Saturation Concentration
26.3 ppm (.0003%) at 42 C (calculated)
Critical temperature
399
Critical pressure
36
Density
1.0038 g/cm3 (25 C)
Solubility in water
870 g/L
Viscosity
1.98 poise @ 45 C
Refractive index
1.46 (24 C)
pKa/pKb
5.06 (pKb)
Partition coefficient, pKow
-0.81
Heat of vaporization
57.2 kJ/mol
Heat of combustion
-3806 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
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
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Moisture, strong acids, strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
127
Autoignition, °C
290
Upper exp. limit, %
8.0
Lower exp. limit, %
1.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Dust can be an explosion hazard when exposed to heat or flame. Containers may explode when heated. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
This compound is combustible.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire will 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
-
Exposure effects
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
May cause respiratory tract irritation.
   Skin
Causes mild skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Transport.
UN number
2733
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
DIP
 
HS Code
2922 19 80
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
S/P