2,4-DINITROPHENOL

International Chemical Safety Cards

2,4-DINITROPHENOL

ICSC: 0464

2,4-DINITROPHENOL
1-Hydroxy-2,4-dinitrobenzene
C₆H₄N₂O₅/C₆H₃(OH)(NO₂)₂
Molecular mass: 184.11
CAS # 51-28-5
RTECS # SL2800000
ICSC # 0464
UN # 1320 (wetted with no less than 15% water)
EC # 609-016-00-8

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Water in large amounts.
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. Roughness. Yellow staining of the skin (further see Inhalation).	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or 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. Collapse. Sweating.	Do not eat, drink, or smoke during work.	Rest. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Evacuate danger area! Do not allow to dry out. Sweep spilled substance into containers. Wipe up remainder in sand or other inert material, then remove to safe place (extra personal protection: complete protective clothing including self-contained breathing apparatus).

Fireproof. Separated from combustible and reducing substances, food and feedstuffs. Cool.

Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
T symbol
R: 23/24/25-33
S: (1/2-)28-37-45
Note: C
UN Hazard Class: 4.1
UN Subsidiary Risks: 6.1
UN Packing Group: I
Marine pollutant.

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0464

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

2,4-DINITROPHENOL

ICSC: 0464

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PHYSICAL STATE; APPEARANCE:
YELLOW CRYSTALS (SEE NOTES).

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.

CHEMICAL DANGERS:
May explosively decompose on shock, friction, or concussion. May explode on heating. Shock-sensitive compounds are formed with alkalis, ammonia and most metals. The substance decomposes on heating producing toxic gases including nitrogen oxides (see Notes).

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance may cause effects on metabolism , resulting in very high body temperature. Exposure may result in death.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the peripheral nervous system. The substance may have effects on the eyes , resulting in cataracts.

PHYSICAL
PROPERTIES

Boiling point: sublimes°C
Melting point: 112°C
Relative density (water = 1): 1.68

Solubility in water, g/100 ml at 54.5°C: 0.14
Relative vapour density (air = 1): 6.36