Product Identification

Product Name

DL-sec-Butyl acetate

Synonyms

1-Methylpropyl acetate
2-Acetoxybutane
2-Ethyl-2-oxazoline
2-Ethyl-4,5-dihydro-1,3-oxazole
2-Ethyl-4,5-dihydrooxazole
Acetic acid, 1-methylpropyl ester
DL-sec-Butyl acetate

CAS

105-46-4

CAS

10431-98-8

Formula

C5H9NO

Formula

C6H12O2

Molecular Weight

99.13

Molecular Weight

116.16

EINECS

203-300-1

EINECS

233-912-4

RTECS

AF7380000

RTECS Class

Other

Merck

13,1535

Beilstein/Gmelin

1720689

Beilstein/Gmelin

105464

Beilstein Reference

4-02-00-00148

Beilstein Reference

4-27-00-00925

EC Index Number

607-026-00-7

EC Class

flammable, corrosive, sensitizing

EC Class

Highly flammable; Repeated exposure may cause skin dryness or cracking

Physical and Chemical Properties

Appearance

Colorless liquid.

Appearance

Colorless liquid. Has fruity odor characteristic of acetate esters.

Solubility in water

Slightly soluble

Solubility in water

Very soluble

Melting Point

-98.9

Melting Point

-62

Boiling Point

112

Boiling Point

128.4

Vapor Pressure

21.6 (25 C)

Vapor Pressure

75 (20 C)

Density

0.892 g/cm3 (0 C)

Density

0.9816 g/cm3 (20 C)

pKa/pKb

5.59 (pKb)

Partition Coefficient

1.72

Heat Of Vaporization

35.1 kJ/mol

Heat Of Combustion

-3538 kJ/mol

Usage

Solvent for nitrocellulose lacquers, thinners, nail enamels, leather finishes.

Vapor Density

4

Vapor Density

3.42

Refractive Index

1.3875 (20 C)

Refractive Index

1.44 (20 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.

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. Wash mouth out with water.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.

Inhalation

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

Inhalation

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

Inhalation

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Vapors may cause dizziness or suffocation.

Skin

Causes skin irritation.

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.

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

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Eyes

Causes eye irritation.

Handling and Storage

Storage

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Storage

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

Handling

Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Handling

Wash thoroughly after handling. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Inhalation

Causes respiratory tract irritation. Exposure produces central nervous system depression. Vapor or mist is irritating to the mucous membranes and upper respiratory tract.

Skin

Causes skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis.

Eyes

Vapors cause eye irritation.

Ingestion

May cause irritation of the digestive tract.

Hazards

Flashback along vapor trail may occur.

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 36/37/38

EC Risk Phrase

R 11 66

EC Safety Phrase

S 16 23 25 29 33

EC Safety Phrase

S 16 26 36

UN (DOT)

1123

UN (DOT)

1993

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.

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.

Exposure Effects

Chronic inhalation may cause effects similar to those of acute inhalation.

Exposure Effects

Prolonged exposure may produce a narcotic effect.

Exposure limit(s)

TLV (as TWA): 200 ppm; 950 mg/m3 (ACGIH 1995-1996). OSHA PEL: TWA 200 ppm (950 mg/m3) NIOSH REL: TWA 200 ppm (950 mg/m3) NIOSH IDLH: 1700 ppm LEL

Poison Class

5

Fire Fighting Measures

Flash Point

16

Flash Point

29

Autoignition

410

Autoignition

422

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 foam, dry chemical, or carbon dioxide. Water may be ineffective.

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. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.

Upper exp. limit

7.6

Lower exp. limit

1.7

Fire Potential

Flammable liquid and vapor.

Fire Potential

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

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. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Wash area with soap and water. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.

Stability and Reactivity

Incompatibilities

Oxidizing agents, strong acids, strong bases, amines, nitrates.

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong acids, copper alloys, copper.

Disposal Code

1

Decomposition

Carbon monoxide, carbon dioxide, acrid smoke and fumes.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

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

Combustion Products

Toxic vapors and gases (such as carbon monoxide) may be released in a fire involving sec-butyl acetate.

Transport Information

UN Number

1123

UN Number

1993

Hazard Class

3

Packing Group

I; II; III

Packing Group

II; III

HS Code

2934 99 90