Product Identification

Product Name

3-Phenyl-2-propynal

Synonyms

3-Phenylpropynal
Benzenepropiolaldehyde
Formylphenylacetylene
Phenylacetylenecarboxaldehyde
Phenylpropargylaldehyde
Phenylpropiolaldehyde

CAS

2579-22-8

Formula

C9H6O

Molecular Weight

130.15

EINECS

219-942-0

Beilstein/Gmelin

1099281

Physical and Chemical Properties

Appearance

Clear, deep red liquid.

Solubility in water

0.10 g/L (25 C)

Melting Point

139 - 140

Boiling Point

246

Vapor Pressure

0.04 (25 C)

Density

1.08 g/cm3 (25 C)

Partition Coefficient

1.59

Heat Of Vaporization

46.39 kJ/mol

Refractive Index

1.0640 (20 C)

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage

Store at 2 - 8 C. Keep container tightly closed.

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.

Respirators

Wear self-contained breathing apparatus.

Exposure Effects

Harmful if swallowed, inhaled, or absorbed through skin. Vapor or mist is irritating to the eyes, mucous membranes, and upper respiratory tract. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.

Fire Fighting Measures

Flash Point

94

Fire Fighting

Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Cover with dry lime or soda ash, pick up, keep in a closed container, and hold for waste disposal. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities

Strong oxidizing agents, Strong bases.

Decomposition

Oxides of carbon.

Transport Information

UN Number

2810

Hazard Class

6.1

Packing Group

III

Hazards Identification

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

36/37/38

EC Safety Phrase

26 36

UN (DOT)

2810