3,7,11,15-Tetramethylhexadecanoic acid

  • Phytanic acid
  • Phytanoic acid
Formula
C20H40O2
Structure

Registry Numbers and Inventories.
CAS
14721-66-5
36/37/38
Beilstein Reference
 

Properties.
Formula
C20H40O2
Formula mass
312.53
Melting point, °C
142
Boiling point, °C
422
Vapor pressure, mmHg
2.6E-8 (25 C)
Critical temperature
529
Critical pressure
1085
Density
0.88 g/cm3 (20 C)
Solubility in water
0.31 mg/L (25 C)
Refractive index
1.4560 (20 C)
pKa/pKb
4.79 (pKa)
Partition coefficient, pKow
8.54
Heat of vaporization
74.20 kJ/mol

Hazards and Protection.
Storage
Store at 2 - 8 C.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
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.
Stability
Stable at normal temperatures and pressures.
Decomposition
Oxides of carbon.

Fire.
Flash Point,°C
179
Fire fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Vapor or mist is irritating to the eyes, mucous membranes, and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption.
   Skin
Causes 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.