Product Identification

Product Name

Hexadecyl trimethyl ammonium bromide

Synonyms

Cetrimonium bromide
CTA Br
Hexadecyltrimethylammonium bromide
Hexadecyl-trimethylazanium bromide

CAS

57-09-0

Formula

C19H42BrN

Molecular Weight

364.46

EINECS

200-311-3

RTECS

BQ7875000

RTECS Class

Agricultural Chemical and Pesticide; Drug; Reproductive Effector; Primary Irritant

Merck

13,2034

Beilstein/Gmelin

3598189

Beilstein Reference

4-04-00-00819

EC Class

harmful, irritant, dangerous for the environment

Physical and Chemical Properties

Appearance

White powder.

Solubility in water

30 g/L

Melting Point

237 - 243

Partition Coefficient

2.26

Usage

Used as a cationic detergent and antiseptic.

Vapor Density

13

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

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.

Eyes

Immediately 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

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 with adequate ventilation. Minimize dust generation and accumulation. Do not get on skin or in eyes. Do not ingest or inhale.

Hazards Identification

Inhalation

Causes respiratory tract irritation. May cause burns to the respiratory tract.

Skin

May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause severe irritation and possible burns.

Eyes

May cause severe eye irritation. May result in corneal injury.

Ingestion

Harmful if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.

EC Risk Phrase

R 22 36/37/38

EC Safety Phrase

S 22 26 36

UN (DOT)

3077

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.

Exposure Effects

Repeated exposure may cause sensitization dermatitis. Reproductive effects have been reported in animals.

Poison Class

3

Fire Fighting Measures

Flash Point

244

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use water spray, dry chemical, or carbon dioxide. Use agent most appropriate to extinguish fire.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Carefully scoop up and place into appropriate disposal container. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal shipping and handling conditions. However, may decompose if heated.

Incompatibilities

Strong oxidizing agents.

Decomposition

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

Transport Information

UN Number

3077

HS Code

2923 90 00