17-Methyloctadecanoic acid

  • 17-Methylstearic acid
Formula
C19H38O2
Structure

Registry Numbers and Inventories.
CAS
2724-59-6
36/37/38
Beilstein Reference
4-02-00-01260

Properties.
Formula
C19H38O2
Formula mass
298.50
Melting point, °C
67.5
Boiling point, °C
415
Vapor pressure, mmHg
4.6E-8 (25 C)
Density
0.8420 g/cm3 (70 C)
Solubility in water
0.3 g/L (25 C)
Refractive index
1.4336 (70<sup>o</sup>C)
pKa/pKb
4.78 (pKa)
Partition coefficient, pKow
8.56
Heat of vaporization
73.32 kJ/mol

Hazards and Protection.
Storage
Store at 2 - 8 C.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. 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
234
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
Causes irritation. May be harmful by inhalation, ingestion, or skin absorption.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract.

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.