Product Identification

Product Name

2-Butanone oxime

Synonyms

2-Butoxime
Aron M 1
Ethyl methyl ketone oxime
Ethyl methyl ketoxime
Exkin 2
Methyl ethyl ketoxime

CAS

96-29-7

Formula

C4H9NO

Molecular Weight

87.12

EINECS

202-496-6

RTECS

EL9275000

RTECS Class

Tumorigen; Mutagen; Primary Irritant

Beilstein/Gmelin

5796922

EC Index Number

616-014-00-0

EC Class

Carcinogenic Category 3; Harmful; Irritant; Sensitising

Physical and Chemical Properties

Appearance

Colorless to light yellow liquid.

Solubility in water

Soluble

Melting Point

-20

Boiling Point

152

Vapor Pressure

23

Density

0.9232 g/cm3 (20 C)

pKa/pKb

12.35 (pKa)

Vapor Density

3

Saturation Concentration

3553 ppm (0.3%) at 20 C (calculated)

Refractive Index

1.4410 (20 C)

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. 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.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage

Store in a cool, dry place. Keep container closed when not in use.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

Vapors may cause dizziness or suffocation. May cause irritation or burns.

Skin

May cause sensitization by skin contact.

Eyes

Causes irritation.

Hazards

During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.

EC Risk Phrase

R 21 40 41 43

EC Safety Phrase

S 13 23 26 36/37/39

UN (DOT)

1993

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate safety goggles, protective clothing and gloves.

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

The toxological properties of this substance have not been fully investigated.

Poison Class

4

Fire Fighting Measures

Flash Point

62

Autoignition

315

Fire Fighting

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used.

Upper exp. limit

12.3

Lower exp. limit

1.9

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment.

Stability and Reactivity

Disposal Code

1

Incompatibilities

Sensitive to heat Reacts with oxidizing agents Mixtures with strong acids may explode Reacts with sulfuric acid to form an explosive product.

Stability

Stable under normal temperatures and pressures.

Decomposition

Irritating and toxic fumes and gases.

Combustion Products

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

Transport Information

UN Number

1993

Hazard Class

3

Packing Group

I; II; III

HS Code

2928 00 90