(R,R)-(-)-Butane-2,3-diol

  • (2R,3R)-2,3-Butanediol
  • levo-2,3-Butanediol
  • (-)-(2R,3R)-2,3-Butanediol
Formula
C4H10O2
Structure
Description
Clear slight brown liquid.

Registry Numbers and Inventories.
CAS
24347-58-8
EC (EINECS/ELINCS)
246-186-9
Merck
13,1567
Beilstein/Gmelin
4290593
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H10O2
Formula mass
90.12
Melting point, °C
16
Boiling point, °C
175
Vapor pressure, mmHg
1.7 (20 C)
Density
0.98 g/cm3
Solubility in water
Very soluble
Refractive index
1.43 (20 C)
Partition coefficient, pKow
-0.99
Heat of vaporization
47.9 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket.
Handling
Avoid breathing dust, vapor, mist, or gas. 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
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
Acid chlorides, acid anhydrides, oxidizing agents, chloroformates, reducing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
85
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible Liquid. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Poison_Class
F (Not subject to toxicity classification)
Exposure effects
   Ingestion
May cause digestive tract disturbances. May cause nausea and vomiting.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 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.
HS Code
2905 39 80