Product Identification

Product Name

2,5-Cresotaldehyde

Synonyms

2,5-Cresotaldehyde
2-Formyl-4-methylphenol
2-Hydroxy-5-methylbenzaldehyde
5-Methyl-2-hydroxybenzaldehyde
5-Methylsalicylaldehyde
NSC 97517

CAS

613-84-3

Formula

C8H8O2

Molecular Weight

136.15

EINECS

210-357-6

Beilstein/Gmelin

2040673

Physical and Chemical Properties

Appearance

Faintly yellow crystals.

Solubility in water

8.3 g/L (25 C)

Melting Point

54

Boiling Point

217

Vapor Pressure

0.09 (25 C)

Density

1.0913 g/cm3 (59 C)

pKa/pKb

8.47 (pKa)

Partition Coefficient

2.07

Heat Of Vaporization

47.24 kJ/mol

Refractive Index

1.547 (59^oC)

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

Keep tightly closed. Store in a cool dry place.

Hazards Identification

Skin

Causes irritation.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

36/37/38

EC Safety Phrase

26 36

Exposure Controls/Personal Protection

Personal Protection

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

Respirators

Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a dust mask type N95 (US) or type P1 (EN 143) respirator.

Exposure Effects

Vapor or mist is irritating to the eyes, mucous membranes, and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption.

Fire Fighting Measures

Flash Point

85

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.

Decomposition

Oxides of carbon.