Chlorodinitrobenzene

  • 1-Chloro-2,4-dinitrobenzene
  • Dinitrochlorobenzene
  • 1,3-Dinitro-4-chlorobenzene
  • 2,4-Dinitrophenyl chloride
  • CDNB
Formula
ClC6H3(NO2)2
Structure
Description
Yellow crystals. Almond odor.

Registry Numbers and Inventories.
CAS
97-00-7
EC (EINECS/ELINCS)
202-551-4
EC Index Number
610-003-00-4
EC Class
toxic, dangerous for the environment
R 23/24/25 33 50/53
S 28 36/37 45 60 61
RTECS
CZ0525000
RTECS class
Drug; Mutagen; Primary Irritant
UN (DOT)
1577
Merck
13,2155
Beilstein/Gmelin
613161
Beilstein Reference
4-05-00-00744
EPA OPP
55101
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H3ClN2O4
Formula mass
202.55
Melting point, °C
52 - 54
Boiling point, °C
315
Vapor pressure, mmHg
1.2 (25 C)
Vapor density (air=1)
6.98
Density
1.6867 g/cm3 (16.5 C)
Solubility in water
Insoluble
Surface tension
45.5 g/s2 (60.4 C)
Refractive index
1.5857 (60 C)
Partition coefficient, pKow
2.18
Heat of vaporization
52.7

Hazards and Protection.
Storage
Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store near alkaline substances.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Do not get on skin or in eyes. Do not ingest or inhale.
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
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Explosive reaction with ammonia. Reacts violently with hydrazine sulfate and hydrazine hydrate. Incompatible with strong bases and oxidizing agents.
Decomposition
Hydrogen chloride, carbon monoxide, oxides of nitrogen, carbon dioxide.

Fire.
Flash Point,°C
140
Autoignition, °C
432
Upper exp. limit, %
22
Lower exp. limit, %
1.9
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Containers may explode when heated. Combustible material; may burn but does not ignite readily. Runoff from fire control or dilution water may cause pollution. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Combustible material: may burn but does not ignite readily.
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
3
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure effects
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. Prolonged exposure may cause anemia and methemoglobinemia, characterized by dizziness, drowsiness, headache, breath shortness, cyanosis, rapid heart rate and chocolate-brown colored blood. Repeated exposure may cause allergic respiratory reaction (asthma).
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause cardiac disturbances. May cause methemoglobinemia, cyanosis, convulsions, and death. May cause central nervous system effects.
   Inhalation
May cause methemoglobinemia, cyanosis, convulsions, tachycardia, dyspnea, and death. May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. May cause cardiac abnormalities. Inhalation at high concentrations may cause CNS depression and asphixiation.
   Skin
May be fatal if absorbed through the skin. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
   Eyes
May cause eye irritation and possible damage.

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
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid immediately. Immediately 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 eyelids. Get medical aid immediately.

Transport.
UN number
1577
Response guide
Hazard class
6.1
Packing Group
II
 
HS Code
2904 90 85