Product Identification

Product Name

Crotonic acid

Synonyms

2-Butenoic acid, (E)-
2-Methyl-3-hydroxypyridine
3-Pyridinol, 2-methyl-
Crotonic acid, (E)-
trans-2-Butenoic acid

CAS

107-93-7

CAS

1121-25-1

Formula

C4H6O2

Formula

C6H7NO

Molecular Weight

86.09

Molecular Weight

109.12

EINECS

203-533-9

EINECS

214-327-3

RTECS

GQ2900000

RTECS Class

Mutagen

Merck

13,2625

Beilstein/Gmelin

1719943

Beilstein/Gmelin

107937

Beilstein Reference

4-02-00-01498

Beilstein Reference

5-21-02-00135

EC Class

irritant

Physical and Chemical Properties

Appearance

Off-white to tan powder.

Solubility in water

Very soluble

Melting Point

71 - 72

Melting Point

128 - 130

Boiling Point

177

Boiling Point

287

Vapor Pressure

0.0015 (25 C)

Vapor Pressure

0.51 (25 C)

Density

0.973 g/cm3 (72 C)

pKa/pKb

4.80 (pKa)

pKa/pKb

4.95 (pKb)

Partition Coefficient

.3

Partition Coefficient

.72

Heat Of Vaporization

45.6 kJ/mol

Heat Of Vaporization

547. kJ/mol

Heat Of Combustion

-3188 kJ/mol

Heat Of Combustion

-1991 kJ/mol

Usage

Substance is used in the production of copolymers with vinyl acetate, in lacquers & paper sizing.

Refractive Index

1.4204 (77 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.

Inhalation

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

Inhalation

Causes respiratory tract irritation. May be harmful if inhaled.

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Skin

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

Skin

Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.

Eyes

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

Eyes

Immediately flush with running water for at least 20 minutes.

Eyes

Causes eye irritation.

Handling and Storage

Storage

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

May cause irritation of the digestive tract. May be harmful if swallowed. Ingestion of large amounts may cause nausea and vomiting, rigidity or convulsions. Continued exposure can produce coma, dehydration, and internal organ

Ingestion

See Inhalation.

Inhalation

TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.

Skin

Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.

Eyes

See Inhalation.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 21/22 34

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

2823

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

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.

Poison Class

4 (Substances and products that must be considered harmful)

Fire Fighting Measures

Flash Point

127

Flash Point

87

Autoignition

500

Fire Fighting

Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Upper exp. limit

15.1

Lower exp. limit

2.2

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Disposal Code

4

Stability

No data.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

2823

Hazard Class

8

Packing Group

III

HS Code

2916 19 40