Product Identification

Product Name

1,3-Dibromo-5,5-dimethyl-2,4-imidazolidinedione

Synonyms

1,3-Dibromo-5,5-dimethyl-2,4-imidazolidinedione
1,3-Dibromo-5,5-dimethylimidazolidine-2,4-dione
2,4-Imidazolidinedione, 1,3-dibromo-5,5-dimethyl-
Dibromantine
Hydantoin, 1,3-dibromo-5,5-dimethyl-
N,N'-Dibromodimethylhydantoin

CAS

77-48-5

Formula

C5H6Br2N2O2

Molecular Weight

285.93

EINECS

201-030-9

RTECS

MU0686000

RTECS Class

Other

Beilstein/Gmelin

146024

Beilstein Reference

5-24-05-00374

EC Class

harmful, corrosive, sensitizing, dangerous for the environment

Physical and Chemical Properties

Appearance

White powder.

Solubility in water

Insoluble

Melting Point

186 - 192

Boiling Point

368 - 376

Density

>1.00 g/cm3 (25 C)

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 immediately.

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

Immediately 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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Refrigerator (approx 4 C). Store protected from moisture.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Do not allow contact with water. Keep from contact with moist air and steam.

Hazards Identification

Ingestion

Harmful if swallowed.

Inhalation

Inhalation of dust may cause respiratory tract irritation.

Skin

Causes severe skin irritation.

Eyes

Causes severe eye irritation.

Hazards

May explode from heat or contamination. May react explosively with hydrocarbons (fuels). May ignite combustibles.

EC Risk Phrase

R 22 34 41

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

1479

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.

Poison Class

3

Fire Fighting Measures

Flash Point

155

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. Use water with caution and in flooding amounts. Oxidizer. Greatly increases the burning rate of combustible materials. Containers may explode in the heat of a fire. Extinguishing media: Use water only! Do NOT use carbon dioxide or dry chemical. Do NOT use alcohol foams. Cool containers with flooding quantities of water until well after fire is out.

Fire Potential

These substances will accelerate burning when involved in a fire.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong reducing agents, strong bases, moisture.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen bromide, bromine.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1479

Hazard Class

5.1

Packing Group

I; II; III

HS Code

2933 21 00