5-Hydroxyoctan-4-one

  • 5-Hydroxy-4-octanone
  • Octan-4-ol-5-one
  • Butyroin
  • 5-Octanol-4-one
Formula
CH3(CH2)2CH(OH)CO(C
Structure

Registry Numbers and Inventories.
CAS
496-77-5
EC (EINECS/ELINCS)
207-830-4
Merck
13, 1595
Canada DSL/NDSL
DSL
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H16O2
Formula mass
144.21
Melting point, °C
2
Boiling point, °C
188
Vapor pressure, mmHg
0.17 (25 C)
Critical temperature
382
Critical pressure
29.70
Density
0.916 g/cm3 (25 C)
Solubility in water
9.8 g/L (25 C)
Refractive index
1.4315 (20 C)
pKa/pKb
13.13 (pKa)
Partition coefficient, pKow
1.69
Heat of vaporization
49.34 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Respirators
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Respiratory protection is not required. Where protection is desired, use multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges.
Small spills/leaks
Absorb on sand or vermiculite and place in closed containers for disposal. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong oxidizing agents.
Decomposition
Oxides of carbon

Fire.
Flash Point,°C
79
Fire fighting
For small (incipient) fires, use media such as alcohol foam, dry chemical, or carbon dioxide. For large fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.
Health
0
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
May be harmful by inhalation, ingestion, or skin absorption.
   Skin
May cause irritation
   Eyes
May cause irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.