Product Identification

Product Name

2-Pentanol

Synonyms

1-Methyl-1-butanol
2-Hydroxypentane
2-Pentyl alcohol
Methylpropylcarbinol
sec-Amyl alcohol
sec-Pentyl alcohol

CAS

6032-29-7

Formula

C5H12O

Molecular Weight

88.15

EINECS

227-907-6

RTECS

SA4900000

RTECS Class

Primary Irritant

Merck

12,7258

Beilstein/Gmelin

1718819

Beilstein Reference

4-01-00-01656

EC Index Number

603-006-00-7

EC Class

flammable, harmful

Physical and Chemical Properties

Appearance

Clear, colorless liquid with a characteristic, slightly pungent and penetrating odor.

Solubility in water

Soluble

Melting Point

-50

Boiling Point

118

Vapor Pressure

23 (20 C)

Density

0.805 g/cm3 (25 C)

Partition Coefficient

1.25

Heat Of Vaporization

41.6 kJ/mol

Usage

2-Pentanol is used in the production of catalyst systems for dimerization and polymerization, and for the synthesis of methanol from carbon monoxide and hydrogen. It is also used as a solvent for primers containing phosphoric acid and for the extraction of 2-hydroxy-4-methylthiobutyric acid. Secondary pentanols are used in the production of lubricant additives; cleaning agents; defrosting agents; various herbicides; and many fragrances.

Vapor Density

3

Saturation Concentration

5400 ppm (0.54%) at 20 C; 8000 ppm (0.80%) at 25 C (calculated)

Refractive Index

1.40592 (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

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. 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.

Handling and Storage

Storage

Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Ground and bond containers when transferring material. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Inhalation

Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Inhalation of vapor may cause respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema. May cause kidney damage.

Skin

May cause skin irritation. May be absorbed through the skin. Causes symptoms similar to those of inhalation.

Eyes

Vapors may cause eye irritation. Contact may cause eye irritation, lacrimation (tearing), burning pain, and inflammation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause effects similar to those for inhalation exposure.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.

EC Risk Phrase

R 10 20

EC Safety Phrase

S 24/25

UN (DOT)

1105

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

33

Autoignition

343

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. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Extinguishing media: Water may be ineffective. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. For small fires, use dry chemical, carbon dioxide, sand, earth, water spray or regular foam. Cool containers with flooding quantities of water until well after fire is out.

Upper exp. limit

8.0

Lower exp. limit

1.2

Fire Potential

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks

Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Provide ventilation.

Stability and Reactivity

Disposal Code

1

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Incompatibilities

Strong oxidizing agents. Substance may explode on contact with hydrogen trisulfide.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1105

Hazard Class

3

Packing Group

II; III

HS Code

2905 15 00