Decanoic acid

  • Capric acid
Formula
CH3(CH2)8COOH
Structure
Description
White crystalline solid or powder with a rancid odor.
Uses
Esters for perfumes and fruit flavor, base for wetting agents, intermediates, plasticizer, resins, intermediate for food-grade additives.

Registry Numbers and Inventories.
CAS
334-48-5
EC (EINECS/ELINCS)
206-376-4
EC Class
irritant
R 36/37/38
RTECS
HD9100000
RTECS class
Mutagen; Primary Irritant
Merck
13,1764
Beilstein/Gmelin
1754556
Beilstein Reference
4-02-00-01041
EPA OPP
128955
Swiss Giftliste 1
G-8105
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H20O2
Formula mass
172.27
Melting point, °C
29 - 32
Boiling point, °C
268
Vapor pressure, mmHg
600 (193 C)
Saturation Concentration
Extremely low at room temperature
Critical temperature
448
Critical pressure
20.73
Density
0.893 g/cm3 (20 C)
Solubility in water
150 mg/L
Viscosity
4.34 cp (50 C)
Surface tension
35.9 g/s2 (37 C)
Refractive index
1.4224 (50 C)
pKa/pKb
4.90 (pKa)
Partition coefficient, pKow
4.09
Heat of vaporization
88.60 kJ/mol
Heat of combustion
-6108.7 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
E
Handling
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.
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
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Disposal code
4
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
147
Autoignition, °C
377
Upper exp. limit, %
5.5
Lower exp. limit, %
0.8
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
This chemical is combustible.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
May cause respiratory tract irritation.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes eye irritation. May cause chemical conjunctivitis.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
USCG CHRIS Code
DCO
 
HS Code
2915 90 80
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P