2,3-Dichlorophenol

  • 2,6-Dichloro-1-hydroxybenzene
  • Phenol, 2,3-dichloro-
Formula
2,3-(Cl)2C6H3OH
Structure
Description
Brown crystals (from ligroin, benzene).
Uses
Research chemical.

Registry Numbers and Inventories.
CAS
576-24-9
EC (EINECS/ELINCS)
209-399-8
EC Class
irritant
R 21 36/37/38
S 24 26 36/37/39
RTECS
SK8450000
RTECS class
Other
UN (DOT)
2020
Beilstein/Gmelin
2043615
Beilstein Reference
4-06-00-00883
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H4Cl2O
Formula mass
163.01
Melting point, °C
57 - 58
Boiling point, °C
206
Vapor pressure, mmHg
0.17 (25 C)
Odor Threshold Odor threshold 0 ug/L in water
Solubility in water
Slightly soluble
pKa/pKb
7.53 (pKa)
Partition coefficient, pKow
2.84
Heat of vaporization
46.0 kJ/mol
Heat of combustion
-2757 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Protection
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.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents, acid chlorides, acid anhydrides, aluminum.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
102
Autoignition, °C
>450
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 chemical foam.
Fire potential
This material is probably combustible.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Prolonged exposure can cause damage to the eyes, severe irritation or burns.
   Ingestion
Harmful if swallowed. Causes gastrointestinal tract burns.
   Inhalation
Causes chemical burns to the respiratory tract.
   Skin
Causes skin burns.
   Eyes
Causes eye burns.

First aid
 
   Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately 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.

Transport.
UN number
2020
Response guide
Hazard class
6.1
Packing Group
III
 
HS Code
2908 10 00