Product Identification

Product Name

4,6-Dichlorophenol

Synonyms

2,4-DCP

CAS

120-83-2

Formula

C6H4Cl2O

Molecular Weight

163

EINECS

204-429-6

RTECS

SK8575000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant

Merck

13,3098

Beilstein/Gmelin

742467

Beilstein Reference

4-06-00-00885

EC Index Number

604-011-00-7

EC Class

Toxic; Harmful; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless crystalline solid with a medicinal odor.

Solubility in water

5 g/L

Melting Point

40 - 41

Boiling Point

210

Vapor Pressure

0.14 (25 C)

Density

1.40 g/cm3 (20 C)

pKa/pKb

8.05 (pKa)

Partition Coefficient

3.06

Heat Of Vaporization

46.5 kJ/mol

Heat Of Combustion

-2754 kJ/mol

Usage

In synthesis of antihelminthic bithionol sulfoxide, pesticide.

Vapor Density

5.62

Odor threshold

0.21 ppm

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 immediately.

Handling and Storage

Storage

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

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

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.

Hazards

Fire extinguishing agents: Water or foam may be used even though frothing occurs.

EC Risk Phrase

R 21/22 34 51/53

EC Safety Phrase

S 26 36/37/39 45 61

UN (DOT)

2021

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

Abnormally low blood pressure, reduced body temperature, rapid breathing, and rapid heart rate may develop with severe toxicity. Initial CNS excitation, including seizures, is commonly followed by CNS depression ranging from lethargy to coma and death. Fetotoxicity and skeletal abnormalities have been reported in animal experiments.

Poison Class

3

Fire Fighting Measures

Flash Point

114

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 spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

Slightly flammable. Requires preheating. Fire hazard when in contact with acid or acid fumes.

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

Disposal Code

3

Incompatibilities

Oxidizing agents, acid chlorides, acid anhydrides.

Stability

Stable under normal temperatures and pressures.

Decomposition

Hydrogen chloride, carbon monoxide, carbon dioxide.

Combustion Products

Toxic gases can be evolved.

Transport Information

UN Number

2021

Hazard Class

6.1

Packing Group

III

HS Code

2908 10 00