Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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2-Ethylhexanoic acid(149-57-5)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2-Ethylhexanoic acid
Synonyms
2-Butylbutanoic acid
2-Ethylcaproic acid
2-Ethylhexoic acid
3-Heptanecarboxylic acid
Butylethylacetic acid
CAS
149-57-5
Formula
C8H16O2
Molecular Weight
144.22
EINECS
205-743-6
RTECS
MO7700000
RTECS Class
Mutagen; Reproductive Effector; Primary Irritant
Beilstein/Gmelin
1750468
Beilstein Reference
3-10-00-01641
EC Index Number
607-230-00-6
EC Class
Toxic for reproduction Category 3

Physical and Chemical Properties

Appearance
Colorless liquid with a characteristic odor.
Solubility in water
Soluble
Melting Point
-82.8
Boiling Point
228
Vapor Pressure
0.03 (25 C)
Density
0.908 g/cm3 (15 C)
pKa/pKb
4.82 (pKa)
Partition Coefficient
2.64
Heat Of Vaporization
51.2 kJ/mol
Usage
Cosolvent and defoamer in pesticides.
Saturation Concentration
Approximately 40 ppm (0.004%) at 20 C (calculated)
Vapor Density
5
Refractive Index
1.4735

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
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 immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
May cause respiratory tract irritation.
Skin
Causes skin irritation. May be harmful if absorbed through the skin.
Eyes
May cause eye irritation.
Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Hazards
Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 63
EC Safety Phrase
S 36/37
UN (DOT)
1738

Exposure Controls/Personal Protection

Personal 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.
Exposure Effects
Possible risk of harm to the unborn child.
Poison Class
4

Fire Fighting Measures

Flash Point
114
Autoignition
310
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. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Upper exp. limit
6.7
Lower exp. limit
.9
Fire Potential
This chemical is combustible.

Accidental Release Measures

Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.

Stability and Reactivity

Disposal Code
4
Incompatibilities
Oxidizing agents, reducing agents, bases.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Combustion Products
Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
1738
Hazard Class
6.1
Packing Group
II
HS Code
2915 90 80
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