1,5-Pentanediol

  • Pentane-1,5-diol
  • 1,5-Dihydroxypentane
  • 1,5-Pentamethylene glycol
  • Pentylene glycol
Formula
HO(CH2)5OH
Structure
Uses
Used as a plasticizer in cellulose products and adhesives, in brake fluid compositions.

Registry Numbers and Inventories.
CAS
111-29-5
EC (EINECS/ELINCS)
203-854-4
RTECS
SA0480000
RTECS class
Primary Irritant
Merck
12,7256
Beilstein/Gmelin
1560130
Beilstein Reference
4-01-00-02540
Swiss Giftliste 1
G-2698
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H12O2
Formula mass
104.15
Melting point, °C
-16
Boiling point, °C
242
Vapor pressure, mmHg
0.075 (20 C)
Density
0.9941 g/cm3 (20 C)
Solubility in water
Very soluble
Viscosity
122.80 cp (20.25 C)
Refractive index
1.4478 (20 C)
Heat of fusion
9.7 kJ/mol
Heat of vaporization
86.8 kJ/mol
Heat of combustion
-3154 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
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.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Acid chlorides - acid anhydrides - oxidizing agents - chloroformates - reducing agents.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
136
Autoignition, °C
330
Upper exp. limit, %
13.1
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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
-
Exposure effects
The toxicological properties of this material have not been investigated.

First aid
 
   Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.

Transport.
20. Alcohols. Glycols
HS Code
2905 39 80