1-Fluoro-2,4-dinitrobenzene

  • 2,4-Dinitrofluorobenzene
  • 2,4-Dinitro-1-fluorobenzene
  • 1,2,4-Fluorodinitrobenzene
  • Dinitrofluorobenzene
  • DNFB
Formula
C6H3FN2O4
Structure
Description
Clear yellow crystals or yellow crystalline solid.
Uses
Reagent for labeling prc: free amino acid groups, in modified wohl degradations.

Registry Numbers and Inventories.
CAS
70-34-8
EC (EINECS/ELINCS)
200-734-3
EC Class
sensitizing
R 45 46 23/24/25 43
RTECS
CZ7800000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
UN (DOT)
2810
Merck
13,4199
Beilstein/Gmelin
398632
Beilstein Reference
4-05-00-00742
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H3FN2O4
Formula mass
186.10
Melting point, °C
24 - 26
Boiling point, °C
296
Vapor pressure, mmHg
0.003 (25 C)
Density
1.4718 g/cm3 (85 C)
Solubility in water
Slightly soluble
Refractive index
1.56997 (20 C)
Partition coefficient, pKow
1.16
Heat of vaporization
51.4 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. 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 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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Provide ventilation.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong bases.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen fluoride.

Fire.
Flash Point,°C
133
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 appropriate foam.
Fire potential
This chemical 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
Chronic inhalation and ingestion may cause fluorosis with skeletal abnormalities. Chronic exposure to fluoride compounds may cause systemic toxicity.
   Ingestion
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. Ingestion of large amounts of fluoride may include salivation, nausea, vomiting, abdominal pain, fever, labored breathing. Exposure to fluoride compounds can result in systemic toxic effects on the heart, liver, and kidneys. It may also deplete calcium levels in the body leading to hypocalcemia and death. Acute oral toxicity tests have shown lethality with central nervous system signs in mice.
   Inhalation
May cause severe irritation of the respiratory tract with possible burns.
   Skin
Causes skin irritation and possible severe skin irritation especially if the skin is wet or moist.
   Eyes
Causes eye irritation and possible burns.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid immediately. 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 eyelids. Get medical aid immediately.

Transport.
UN number
2810
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
HS Code
2904 90 85