5-Chloro-2-hydroxybenzaldehyde

  • 5-Chloro-o-salicylaldehyde
  • 4-Chloro-2-formylphenol
  • 3-Chloro-6-hydroxybenzaldehyde
Formula
C7H5ClO2
Structure
Description
White powder

Registry Numbers and Inventories.
CAS
635-93-8
EC (EINECS/ELINCS)
211-244-4
R 36/37/38
RTECS
VN5450000
RTECS class
Other
Beilstein/Gmelin
636632
Swiss Giftliste 1
G-3232
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H5ClO2
Formula mass
156.57
Melting point, °C
100.3
Boiling point, °C
105 (12 torr)
Refractive index
 
pKa/pKb
7.72 (pKa)

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Respirators
A respiratory protection program that meets OSHA's 29 CFR ß1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, while using/wearing the proper protective equipment.
Stability
Stable under normal temperatures and pressures.
Decomposition
Irritating and toxic fumes and gases.

Fire.
Fire fighting
Wear approved SCBA in full pressure-demand and full protective gear. Use agent most appropriate to extinguish fire.

Health.
Poison_Class
4
Exposure effects
Irritating to eyes, respiratory system and skin. The toxicological properties of this material have not been investigated. Use appropriate procedures to prevent opportunities for direct contact with the skin or eyes and to prevent inhalation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   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. 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 lids. Get medical aid immediately.

Transport.