4,6-Dichloro-1,3-benzenediol

  • 4,6-Dichlororesorcinol
  • 4,6-Dichlororesorcin
  • 1,5-Dichloro-2,4-dihydroxybenzene
Formula
C6H4Cl2O2
Structure
Description
Beige powder.

Registry Numbers and Inventories.
CAS
137-19-9
EC (EINECS/ELINCS)
205-284-1
R: 36/37/38
S: 26 37
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C6H4Cl2O2
Formula mass
179.00
Melting point, °C
104 - 106
Boiling point, °C
253 - 255
Vapor pressure, mmHg
0.011 (25 C)
Density
1.624 g/cm3 (25 C)
Solubility in water
Soluble
pKa/pKb
7.55 (pKa)
Partition coefficient, pKow
2.58
Heat of vaporization
51.1 kJ/mol

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry place in tightly closed containers.
Protection
Impervious gloves, safety glasses, protective work clothing.
Small spills/leaks
Sweep up and place in suitable waste container.
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Oxidizing agents.

Fire.
Flash Point,°C
125
Fire fighting
Extinguishing media: Carbon dioxide, extinguishing powder or water spray. Fight larger fires with water spray or alcohol resistant foam. Wear self-contained respirator. Wear fully protective impervious suit.
Combustion products
Carbon monoxide and carbon dioxide. Hydrogen chloride.
Health
1
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure effects
Causes irritation to the eyes, skin and mucous membranes.

First aid
 
   Ingestion
Seek immediate medical advice.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Transport.