Product Identification

Product Name

1,4-Dihydroxy-9,10-anthracenedione

Synonyms

1,4-Dihydroxy-9,10-anthraquinone
1,4-Dihydroxyanthracene-9,10-dione
Chinizarin
Quinizarine
Smoke Orange R

CAS

81-64-1

Formula

C14H8O4

Molecular Weight

240.22

EINECS

201-368-7

RTECS

CB6600000

RTECS Class

Mutagen; Primary Irritant

Merck

12,8250

Beilstein/Gmelin

1914036

Beilstein Reference

4-08-00-03260

Physical and Chemical Properties

Appearance

Orange crystals from acetic acid; orange plates from ether; deep red

Solubility in water

soluble in hot water

Melting Point

202

Boiling Point

465

Vapor Pressure

3E-9 (25 C)

Density

1.278 g/cm3 (20 C)

pKa/pKb

7.54 (pKa)

Partition Coefficient

3.7

Heat Of Vaporization

75.5 kJ/mol

Heat Of Combustion

-6057 kJ/mol

Usage

Antioxidant in synthetic lubricants.

Vapor Density

8.3

First Aid Measures

Ingestion

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.

Inhalation

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

Skin

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

Handling and Storage

Storage

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

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause irritation of the digestive tract.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

Causes eye irritation.

EC Safety Phrase

S 22 24/25

UN (DOT)

1325

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

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.

Fire Fighting Measures

Flash Point

222

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 fog, dry chemical, carbon dioxide, or regular foam.

Fire Potential

Flammable/combustible material. May be ignited by friction, heat, sparks or flames.

Accidental Release Measures

Small spills/leaks

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong acids.

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating and/or toxic gases.

Transport Information

UN Number

1325

Hazard Class

4.1

Packing Group

II; III