Product Identification

Product Name

Hydroquinone monophenyl ether

Synonyms

4-(Phenoxy)phenol
4-Hydroxydiphenyl ether
Hydroquinone monophenyl ether
p-Hydroxydiphenyl ether
p-Phenoxyphenol

CAS

831-82-3

Formula

C12H10O2

Molecular Weight

186.21

EINECS

212-611-1

Beilstein/Gmelin

2047182

Beilstein Reference

4-06-00-05724

Physical and Chemical Properties

Appearance

Beige crystals.

Solubility in water

Insoluble.

Melting Point

80 - 83

Boiling Point

314

Vapor Pressure

0.00026 (25 C)

Partition Coefficient

3.75

Heat Of Vaporization

57.7 kJ/mol

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

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

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

Ingestion

See Inhalation.

Inhalation

Causes irritation.

Skin

Causes irritation.

Eyes

Causes irritation.

Hazards

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

EC Risk Phrase

R 22 36/37/38

EC Safety Phrase

S 26 36/37/39

UN (DOT)

2430

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

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.

Fire Fighting Measures

Flash Point

141

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.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Avoid contact with strong oxidizing agents.

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

2430

Hazard Class

8

Packing Group

I; II; III

HS Code

2909 50 90