2,4-DINITROPHENOL 0464
March 1996
CAS No: 51-28-5 1-Hydroxy-2,4-dinitrobenzene
C6H4N2O5 / C6H3(OH)(NO 2)2
RTECS No: SL2800000
Molecular mass: 184.11
UN No: 1320 (wetted with no less than 15%
water)
EC No: 609-041-00-4
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Combustible. Gives off irritating or NO open flames. Water in large amounts.
toxic fumes (or gases) in a fire.
EXPLOSION Risk of fire and explosion. Do NOT expose to friction or shock. In case of fire: keep drums, etc., cool
by spraying with water. Combat fire
from a sheltered position.
EXPOSURE PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
Inhalation See Ingestion. Local exhaust or breathing protection. Fresh air, rest (see Notes). Refer for
medical attention.
Skin MAY BE ABSORBED! Redness. Protective gloves. Protective clothing. Remove contaminated clothes.
Roughness. Yellow staining of the Rinse skin with plenty of water or
skin. (Further see Inhalation). shower. Refer for medical attention.
Eyes Safety goggles. First rinse with plenty of water for
several minutes (remove contact
lenses if easily possible), then take to
a doctor.
Ingestion Nausea. Vomiting. Palpitations. Do not eat, drink, or smoke during Rest. Refer for medical attention.
Collapse. Sweating. work.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Do not allow to dry out. Sweep T Symbol Unbreakable packaging; put
spilled substance into containers. Wipe up remainder N Symbol breakable packaging into closed
in sand or other inert material, then remove to safe R: 23/24/25-33-50 unbreakable container. Do not
place. Personal protection: complete protective S: (1/2-)28-37-45-61 transport with food and feedstuffs.
clothing including self-contained breathing apparatus. Note: C Marine pollutant.
UN Hazard Class: 4.1
UN Subsidiary Risks: 6.1
UN Pack Group: I
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-41GDT-I Fireproof. Separated from combustible and reducing substances, food and
feedstuffs. Cool.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2005
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0464 2,4-DINITROPHENOL
IMPORTANT DATA
Physical State; Appearance Routes of exposure
YELLOW CRYSTALS. (SEE NOTES). The substance can be absorbed into the body by inhalation,
through the skin and by ingestion.
Physical dangers
Inhalation risk
Dust explosion possible if in powder or granular form, mixed with
air. Evaporation at 20/C is negligible; a harmful concentration of
airborne particles can, however, be reached quickly.
Chemical dangers
Effects of short-term exposure
May explosively decompose on shock, friction, or concussion.
May explode on heating. Shock-sensitive compounds are formed The substance may cause effects on metabolism, resulting in
with alkalis, ammonia and most metals. The substance very high body temperature. Exposure may result in death.
decomposes on heating producing toxic gases including nitrogen
oxides (see Notes). Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis.
Occupational exposure limits The substance may have effects on the peripheral nervous
TLV not established. system. The substance may have effects on the eyes, resulting in
cataracts.
PHYSICAL PROPERTIES
Sublimation Solubility in water, g/100 ml at 54.5/C: 0.14
Melting point: 112/C Relative vapour density (air = 1): 6.36
Relative density (water = 1): 1.68
ENVIRONMENTAL DATA
This substance may be hazardous to the environment; special attention should be given to aquatic organisms.
NOTES
Use all available methods for reducing body temperature.
Because of its explosive properties, the compound is used in the form of a water paste.
UN 0076 applies to the dry compound. CAS 25550-58-7 applies to unspecified isomers of dinitrophenol.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2005
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