1,5-Diphenylcarbazide

  • 1,5-Diphenylcarbohydrazide
  • 2,2'-Diphenylcarbonic dihydrazide
  • S-Diphenylcarbohydrazide
Formula
C6H5NHNHCONHNHC6H5
Structure
Description
White to pink, odorless powder.
Uses
Used as a indicator in titrating Fe.

Registry Numbers and Inventories.
CAS
140-22-7
EC (EINECS/ELINCS)
205-403-7
S 22 24/25
RTECS
FF2750000
RTECS class
Mutagen
Merck
13,3353
Beilstein/Gmelin
752039
Beilstein Reference
4-15-00-00182
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C13H14N4O
Formula mass
242.28
Melting point, °C
170 - 172
Boiling point, °C
454
Density
1.31 g/cm3
Solubility in water
Insoluble
Partition coefficient, pKow
1.54

Hazards and Protection.
Storage
Keep away from heat and flame. Store in a cool, dry place. Keep from contact with oxidizing materials.
Handling
Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
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 gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
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
Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.
Disposal code
3
Stability
Stable under normal shipping and handling conditions. Decomposes when heated.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam. In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.

Health.
Exposure effects
May cause irritation of the eyes, skin and respiratory tract.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
Dust may cause mechanical irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Transport.
HS Code
2928 00 90