Triethanolamine

  • Trihydroxytriethylamine
  • 2,2',2’’-Nitrilotriethanol
  • Trolamine
  • Daltogen
  • TEA
  • Sting-Kill
Formula
N(CH2CH2OH)3
Structure
Description
Colorless to pale yellow viscous liquid with slight ammoniacal odor.
Uses
Insecticide, Microbiocide, Adjuvan

Registry Numbers and Inventories.
CAS
102-71-6
EC (EINECS/ELINCS)
203-049-8
R 36/38
S 26 37/39
RTECS
KL9275000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Primary Irritant
UN (DOT)
2733
Merck
12,9798
Beilstein/Gmelin
1699263
Beilstein Reference
4-04-00-01524
EPA OPP
4208
Swiss Giftliste 1
G-2962
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H15NO3
Formula mass
149.19
Melting point, °C
21.6
Boiling point, °C
335.4
Vapor pressure, mmHg
8E-6 (25 C)
Vapor density (air=1)
5.14
Saturation Concentration
<13 ppm at 20 C
Evaporization number
<1 (butyl acetate=1)
Critical temperature
514.3
Critical pressure
24.2
Density
1.13 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
795 cp (20 C)
Surface tension
48.0 g/s2 (20 C)
Refractive index
1.4852 (20 C)
Dipole moment
3.57 D
Dielectric constant
29.4 (25 C)
pKa/pKb
6.24 (pKb)
Partition coefficient, pKow
-1.82
Heat of vaporization
67.0 kJ/mol
Heat of combustion
-3790 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. Do not expose to air. Store protected from moisture. Store protected from light. Store under an inert atmosphere.
D2B
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light. Handle under an inert atmosphere. Store protected from air. 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
Wear a supplied air, full-facepiece respirator, airlined hood, or full-facepiece self-contained breathing apparatus. Breathing air quality must meet the requirements of the OSHA respiratory protection standard (29CFR1910.134). This substance has unknown warning properties. Where respirators are required, you must have a written program covering the basic requirements in the OSHA respirator standard. These include training, fit testing, medical approval, cleaning, maintenance, cartridge change schedules, etc. See 29CFR1910.134 for details.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation. Place under an inert atmosphere.
Disposal code
5
Stability
Stable under ordinary conditions of use and storage. Darkens on exposure to air or light.
Incompatibilities
Moisture, opper, copper alloys, galvanized iron, acids, and oxidizers
Decomposition
Carbon monoxide, carbon dioxide, nitric oxide (NOx) and ammonia (NH3) fumes.

Fire.
Flash Point,°C
179
Autoignition, °C
315
Upper exp. limit, %
8.5
Lower exp. limit, %
1.3
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 spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Slightly flammable. Combustion requires preheating. Moderate hazard.
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
Poisonous gases, such as NOx, may be produced
Health
2
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure limit(s)
TLV: ppm; 5 mg/m3 (ACGIH 1993-1994)
Poison_Class
5
Exposure effects
May cause liver and kidney damage. Prolonged or repeated contact may cause skin necrosis and/or ulceration of the skin.
   Ingestion
May cause burns in the mouth, pharynx, and esophagus, abdominal pain, nausea, vomiting and diarrhea.
   Inhalation
No adverse effects expected since triethanolamine has a low vapor pressure.
   Skin
May cause irritation, redness, and pain, especially on prolonged or repeated contact.
   Eyes
Corrosive. Contact causes severe irritation, burns, redness, and pain. May cause irritation, redness, pain, and corneal damage.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid if irritation or symptoms occur.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2733
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
TEA
 
HS Code
2922 13 10
 
IMO Pollution Category
D
IMO Hazard code
S