Product Identification

Product Name

5-Methyl-2-(1-methylethyl)phenol

Synonyms

2-Isopropyl-5-methylphenol
3-Hydroxy-1-methyl-4-isopropylbenzene
3-Hydroxy-p-cymene
6-Isopropyl-m-cresol
p-Cymen-3-ol
Thyme camphor

CAS

89-83-8

Formula

C10H14O

Molecular Weight

150.24

EINECS

201-944-8

RTECS

XP2275000

RTECS Class

Drug; Mutagen; Reproductive Effector

Merck

12,9540

Beilstein/Gmelin

1907135

Beilstein Reference

4-06-00-03334

EC Index Number

604-032-00-1

EC Class

Harmful; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless crystals, thyme-like aromatic odor.

Solubility in water

1 g/L

Melting Point

49 - 51

Boiling Point

233

Vapor Pressure

30 (30 C)

Density

0.9898 - 0.9199 g/cm3 (0 - 90 C)

pKa/pKb

10.62 (pKa)

Partition Coefficient

3.3

Heat Of Vaporization

51.57 kJ/mol

Usage

For destroying mold, preserving documents, art objects, and urine. Stabilizer (antioxidant) for trichloroethylene, haloethane.

Saturation Concentration

2.9 ppm (0.0003%) at 25 C (calculated)

Odor threshold

0.05 mg/L

Refractive Index

1.5227 (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.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.

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. Destroy contaminated shoes.

Eyes

Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale. Discard contaminated shoes.

Hazards Identification

Inhalation

Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects.

Skin

Causes skin burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.

Eyes

Causes eye burns. May cause chemical conjunctivitis and corneal damage.

Ingestion

May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May be harmful if swallowed. May cause systemic effects.

Hazards

When heated, emits toxic fumes.

EC Risk Phrase

R 22 34 51/53

EC Safety Phrase

S 26 28 36/37/39 45 61

UN (DOT)

3251

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

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

Effects may be delayed. May cause reproductive effects.

Poison Class

3

Fire Fighting Measures

Flash Point

104

Autoignition

285

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 agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

Flammable.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Incompatibilities

Avoid contact with strong bases, oxidizing agents, acetanilide; antipyrine; camphor; monobromated camphor; cholorohydrate; menthol; quinine sulfate; salol, urethene, spirit nitrous ether.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

Fire may produce irritating and/or toxic gases.

Transport Information

UN Number

3251

Hazard Class

4.1

Packing Group

III

HS Code

2907 19 00