1,4-Benzenedicarboxaldehyde

  • Terephthalaldehyde
  • Terephthaldialdehyde
  • p-Benzenedicarboxaldehyde
  • p-Formylbenzaldehyde
  • p-Phthaldialdehyde
  • 1,4-Benzenedicarbaldehyde
Formula
C6H4-1,4-(CHO)2
Structure
Description
Light yellow powder

Registry Numbers and Inventories.
CAS
623-27-8
EC (EINECS/ELINCS)
210-784-8
S 22 24/25
RTECS
WZ0430000
RTECS class
Other
Beilstein/Gmelin
385863
Beilstein Reference
4-07-00-02140
Swiss Giftliste 1
G-7861
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H6O2
Formula mass
134.14
Boiling point, °C
245
Density
1.381 g/cm3
Solubility in water
3 g/L
Refractive index
 

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.
Small spills/leaks
Clean up spills immediately, while using/wearing the proper protective equipment. Sweep up, then place into a suitable container for disposal.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Agents oxydants forts, bases fortes.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
76
Fire fighting
Wear approved SCBA in full pressure-demand and full protective gear. Extinguish fire using water, dry chemical, chemical foam, or alcohol-resistant foam.

Health.
Poison_Class
4
Exposure effects
   Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
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 lids.

Transport.
HS Code
2912 29 00