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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1-Butanecarboxylic acid(109-52-4)

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
1-Butanecarboxylic acid
Synonyms
Pentanoic acid
CAS
109-52-4
Formula
C5H10O2
Molecular Weight
102.13
EINECS
203-677-2
RTECS
YV6100000
RTECS Class
Reproductive Effector
Merck
12,10042
Beilstein/Gmelin
969454
Beilstein Reference
4-02-00-00868
EC Index Number
607-143-00-3
EC Class
Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance
Clear, colorless liquid, with a characteristic, unpleasant odor, similar to butyric acid.
Solubility in water
20 g/L
Melting Point
-32
Boiling Point
186
Vapor Pressure
0.45 (25 C)
Density
1.11 g/cm3
pKa/pKb
4.84 (pKa)
Partition Coefficient
1.39
Heat Of Vaporization
44.6 kJ/mol
Heat Of Combustion
-2837.8 kJ/mole
Usage
Intermediate for flavors and perfumes, ester-type lubricants, plasticizers, pharmaceuticals, vinyl stabilizers.
Vapor Density
3.52
Saturation Concentration
Approximately 200 ppm (0.02%) at 20 C (calculated)
Refractive Index
1.40781 (15 C)

First Aid Measures

Ingestion
Do NOT induce vomiting. 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
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Discard contaminated clothing in a manner which limits further exposure.
Eyes
Immediately 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 away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Wash hands before eating. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.

Hazards Identification

Inhalation
Irritation may lead to chemical pneumonitis and pulmonary edema. Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma.
Skin
May cause severe irritation and possible burns.
Eyes
Contact with eyes may cause severe irritation, and possible eye burns. May cause eye injury.
Ingestion
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. Causes severe pain, nausea, vomiting, diarrhea, and shock.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
EC Risk Phrase
R 34 52/53
EC Safety Phrase
S 26 36 45 61
UN (DOT)
3265

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 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
Prolonged or repeated skin contact may cause dermatitis.
Poison Class
4

Fire Fighting Measures

Flash Point
86
Autoignition
360
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. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Water spray may cause frothing. Cool containers with flooding quantities of water until well after fire is out.
Upper exp. limit
7.3
Lower exp. limit
1.8
Fire Potential
Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Neutralize spill with a weak acid such as vinegar or acetic acid. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation.

Stability and Reactivity

Disposal Code
4
Incompatibilities
Ammonia, alkylene oxides, amines, caustics (e.g. ammonia, ammonium hydrozide, calcium hydroxide, potassium hydroxide, sodium hydroxide), epichlorohydrin, isocyanates, strong bases, sulfuric acid.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, carbon dioxide, acrid smoke and fumes.
Combustion Products
Irritating vapors and toxic gases, such as carbon dioxide and carbon monoxide, may be formed when involved in fire.

Transport Information

UN Number
3265
Hazard Class
8
Packing Group
I; II; III
HS Code
2915 60 90
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