3,4-Dinitrophenol

  • 6,5-Dinitrophenol
  • 3,4-DNP
Formula
C6H4N2O5
Structure
Description
lLght yellow crystalline
Uses
Used in the manufacture of dyes and wood preservatives, a pesticide and as an indicator for the detection of potassium and ammonium ions.

Registry Numbers and Inventories.
CAS
577-71-9
EC (EINECS/ELINCS)
209-415-3
EC Index Number
609-054-00-5
23/24/25 33 51/53
8 37 45 61
RTECS
SL3000000
RTECS class
Mutagen
UN (DOT)
1320
Beilstein/Gmelin
1969398
Beilstein Reference
4-06-00-01384
Swiss Giftliste 1
G-1948
New Zealand
Listed

Properties.
Formula
C6H4N2O5
Formula mass
184.12
Melting point, °C
132
Boiling point, °C
419
Vapor pressure, mmHg
1.42E-7 (25 C)
Density
1.672 g/cm3 (20 C)
Solubility in water
Slightly soluble
pKa/pKb
5.42 (pKa)
Heat of fusion
25.3 kJ/mol
Heat of vaporization
70 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, Strong bases, Acid chlorides, Acid anhydrides.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides.

Fire.
Flash Point,°C
194
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Flammable solid. Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
3
 
 
Reactivity
1
 

Health.
Poison_Class
2
Exposure effects
Dangerous for the environment. Explosive when dry. Toxic by inhalation, in contact with skin and if swallowed. Danger of cumulative effects. Irritating to eyes, respiratory system and skin. Very toxic to a
   Ingestion
Toxic if swallowed.
   Inhalation
Toxic if inhaled. Material is irritating to mucous membranes and upper respiratory tract.
   Skin
Causes skin irritation. Toxic if absorbed through skin.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician immediately.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
1320
Response guide
Hazard class
4.1
Packing Group
I