1,3-Butanediol

  • Methyltrimethylene glycol
  • 1,3-Dihydroxybutane
  • 1,3-Butylene glycol
  • Butane-1,3-diol
Formula
CH3CH(OH)CH2CH2OH
Structure
Description
Viscous liquid. Odorless when pure.

Registry Numbers and Inventories.
CAS
107-88-0
EC (EINECS/ELINCS)
203-529-7
RTECS
EK0440000
RTECS class
Reproductive Effector; Primary Irritant
Merck
13,1566
Beilstein/Gmelin
1731276
Beilstein Reference
0-01-00-00477
EPA OPP
42205
Swiss Giftliste 1
G-1315
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H10O2
Formula mass
90.12
Melting point, °C
< -50
Boiling point, °C
204
Vapor pressure, mmHg
0.02 (25 C)
Vapor density (air=1)
3.1
Odor Threshold Odor threshold Odorless.
Critical temperature
403
Critical pressure
39.67
Density
1.004-1.006 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
8.924 @ 20 C
Surface tension
37.1 g/s2 (25 C)
Refractive index
1.4402 (20 C)
Heat of vaporization
48.5 kJ/mol
Heat of combustion
-2488 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. 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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, acid chlorides, acid anhydrides, reducing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
109
Autoignition, °C
440
Upper exp. limit, %
9.4
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. Extinguishing media: Water or foam may cause frothing. Use foam, dry chemical, or carbon dioxide. Water spray may cause frothing.
Fire potential
Slightly flammable. When exposed to heat or flame can react to oxidizing materials.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
-
Exposure effects
May cause kidney injury.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause systemic toxicity with acidosis. May cause cardiac disturbances. May cause kidney failure. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. May cause effects similar to those described for ingestion.
   Skin
May cause skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. 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 if irritation develops or persists. 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 immediately.

Transport.
USCG CHRIS Code
BUG
 
20. Alcohols. Glycols
HS Code
2905 39 20
 
IMO Pollution Category
D