Product Identification

Product Name

2,4,6-Tribromophenol

Synonyms

Bromol
Silane, chlorodimethyl(methylphenyl)
Tolyldimethylchlorosilane

CAS

35239-30-6

CAS

5832-44-0

CAS

118-79-6

Formula

C6H3Br3O

Formula

C6H6N2O2

Formula

C9H13ClSi

Molecular Weight

138.13

Molecular Weight

184.74

Molecular Weight

330.8

EINECS

204-278-6

EINECS

252-456-7

RTECS

SN1225000

RTECS Class

Reproductive Effector; Primary Irritant

Merck

12,9744

Beilstein/Gmelin

118796

Beilstein/Gmelin

NA

Beilstein/Gmelin

776920

Beilstein Reference

4-06-00-01067

Beilstein Reference

5-20-05-00583

Physical and Chemical Properties

Appearance

Soft, long, white crystals with a bromine odor.

Solubility in water

70 mg/L

Melting Point

91 - 92

Melting Point

0

Boiling Point

215

Boiling Point

85 (3 torr)

Boiling Point

290

Vapor Pressure

0.0015 (25 C)

Density

1 g/cm3

Density

2.55 g/cm3 (20 C)

pKa/pKb

6.34 (pKb)

Partition Coefficient

4.13

Heat Of Vaporization

54.7 kJ/mol

Heat Of Combustion

-2689 kJ/mol

Usage

Antiseptic & germicide (eg, in pharmaceutical prepns).

Vapor Density

11.4

Refractive Index

1.54 (20 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Ingestion

Seek medical assistance.

Inhalation

TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns, or death. Effects may be delayed.

Inhalation

TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.

Inhalation

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

Skin

See Inhalation.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Skin

Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.

Skin

Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.

Eyes

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

Eyes

See Inhalation.

Eyes

Immediately flush with running water for at least 20 minutes.

Handling and Storage

Storage

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.

Hazards Identification

Ingestion

See Inhalation.

Inhalation

Harmful if inhaled. The toxicological properties of this substance have not been fully investigated.

Skin

Harmful if absorbed through the skin.

Eyes

May cause eye irritation.

Ingestion

Harmful if swallowed. The toxicological properties of this substance have not been fully investigated.

Hazards

Vapors form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 20/21/22

EC Risk Phrase

R 20/22 36/37/38

EC Safety Phrase

S 26 36/37/39

EC Safety Phrase

S 28 36/37

UN (DOT)

2810

UN (DOT)

2985

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

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

In severe intoxications, a rapidly progressing and profound coma may occur. Seizures may occur following significant exposures.

Poison Class

4

Fire Fighting Measures

Flash Point

102

Autoignition

>450

Fire Fighting

Note: Most foams will react with the material and release corrosive/toxic gases. Small Fires: carbon dioxide, dry chemical, dry sand, alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam.

Fire Fighting

Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Fire Potential

Combustible material: may burn but does not ignite readily.

Fire Potential

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.

Small spills/leaks

ELIMINATE all ignition sources and groumd all equipment used when handling the product. Do not touch spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. FOR CHLOROSILANES, use AFFF alcohol-resistant medium expansion foam to reduce vapors. DO NOT GET WATER on spilled substance or inside containers. Cover with DRY earth, DRY sand, or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean non-sparking tools to collect material and place it into loosley covered plastic containers for later disposal.

Small spills/leaks

ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Stability and Reactivity

Stability

No data.

Incompatibilities

Strong bases, strong oxidizing agents.

Decomposition

Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen fluoride.

Combustion Products

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

Combustion Products

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

Transport Information

UN Number

2810

UN Number

2985

Hazard Class

3

Hazard Class

6.1

Packing Group

I; II; III

Packing Group

II