Dipropylene glycol

  • 2,2'-Dihydroxydipropyl ether
  • 1,1'-Oxydi-2-propanol
  • 1,1'-Oxydipropan-2-ol
Formula
C6H14O3
Structure
Description
Colorless, slightly viscous liquid. Practically no odor.
Uses
Polyester & alkylated resins, reinforced plastics, plasticizers, solvent.

Registry Numbers and Inventories.
CAS
110-98-5
EC (EINECS/ELINCS)
203-821-4
RTECS
UB8785000
RTECS class
Primary Irritant
Beilstein/Gmelin
1698372
Beilstein Reference
4-01-00-02473
EPA OPP
68604
Swiss Giftliste 1
G-1589
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H14O3
Formula mass
134.20
Melting point, °C
46 - 48
Boiling point, °C
222
Vapor pressure, mmHg
0.1 (20 C)
Vapor density (air=1)
4.63
Odor Threshold Odor threshold Odorless
Critical temperature
382
Critical pressure
36
Density
1.0261 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
1.07 p (20C)
Refractive index
1.441 (20 C)
Partition coefficient, pKow
-0.82
Heat of vaporization
54.3 kJ/mol
Heat of combustion
-3700 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid contact with skin and eyes.
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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
138
Autoignition, °C
310
Upper exp. limit, %
12.6
Lower exp. limit, %
2.9
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
Slight risk when exposed to heat or flame; can react with oxidizing materials.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: TWA 1.5 mg/m3 ST 3 mg/m3 skin
Exposure effects
Prolonged or repeated exposure may cause nausea, dizziness, and headache.
   Ingestion
Expected to be a low ingestion hazard.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause mild skin irritation.
   Eyes
May cause mild eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. 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.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
USCG CHRIS Code
DPG
 
40 Glycol ethers
IMO Chemical Code
18
IMO Pollution Category
III