Diethylaminoethanol

  • Diethylethanolamine
  • 2-Diethylamionethanol
  • 2-Hydroxytriethylamine
Formula (C2H5)2NCH2CH2OH
Structure
Description Clear, colorless liquid, nauseating, unpleasant, weak, ammonia-like odor, hygroscopic.
Uses Manufacture of emulsifying agents and special soaps.

Registry Numbers and Inventories.
CAS 100-37-8
EC (EINECS/ELINCS) 202-845-2
EC Index Number 603-048-00-6
EC Class Flammable; Harmful; Corrosive
EC Risk Phrase R 10 20/21/22 34
EC Safety Phrase S 25 26 36/37/39 45
RTECS KK5075000
RTECS class Human Data; Primary Irritant
UN (DOT) 2686
Merck 13,3139
Beilstein/Gmelin 741863
Beilstein Reference 4-04-00-01471
Swiss Giftliste 1 G-1873
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed
Korea ECL Listed

Odor Threshold Odor threshold 0.011 ppm
Properties.
Formula C6H15NO
Formula mass 117.19
Melting point, °C -70
Boiling point, °C 162
Vapor pressure, mmHg 21 (25 C)
Vapor density (air=1) 4.03
Saturation Concentration About 0.18% (1800 ppm) at 25 C (calculated)
Evaporization number 0.17 (butyl acetate = 1)
Critical temperature 343
Critical pressure 26.15
Density 0.8921 g/cm3 (20 C)
Solubility in water Miscible
Viscosity 4.022 cp (25 C)
Surface tension 29.2 g/s2 at 20 C
Refractive index 1.4389 (20 C)
Dielectric constant 9.1 (20 C)
pKa/pKb 4.13 (pKb)
Heat of vaporization 45.0 kJ/mol

Hazards and Protection.
Storage Keep away from heat, sparks, and flame. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. Store protected from moisture.
WHMIS B3 D1B E
Handling Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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. Avoid runoff into storm sewers and ditches which lead to waterways. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Disposal code 1
Stability Stable under normal temperatures and pressures.
Incompatibilities Acids, copper, copper alloys, zinc, galvanized iron, nitrites, strong oxidizing agents, metals, acid anhydrides.
Decomposition Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C 51.5
Autoignition, °C 270
Upper exp. limit, % 28
Lower exp. limit, % 1.8
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Do NOT get water inside containers. For large fires, use water spray, fog or alcohol-resistant foam. Cool containers with flooding quantities of water until well after fire is out.
Fire potential Flammable; moderate fire 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 Toxic and irritating gases may be generated.
NFPA Health 1
  Flammability 2  
  Reactivity 0  

Health.
Exposure limit(s) OSHA PEL: TWA 10 ppm (50 mg/m3) skin NIOSH REL: TWA 10 ppm (50 mg/m3) skin NIOSH IDLH: 100 ppm
Poison_Class 4
Exposure effects
   Ingestion Harmful if swallowed. Causes gastrointestinal tract burns.
   Inhalation Harmful if inhaled. Causes chemical burns to the respiratory tract. May cause burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
   Skin May cause severe skin irritation. May be harmful if absorbed through the skin.
   Eyes May cause eye irritation. May cause eye injury.

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 immediately.
   Inhalation Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin Get medical aid immediately. 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. Get medical aid immediately.

Transport.
UN number 2686
Response guide 132
Hazard class 8
Packing Group II  
USCG CHRIS Code DAE  
USCG Compatatibility Group 8 Alkanolamines
HS Code 2922 19 80  
Std. Transport # 4912086 4930002  
IMO Pollution Category C
IMO Hazard code S/P