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4,6-Dichlorophenol(120-83-2)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

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.