Yellow crystalline solid with a sweet musty odor.
In manufacture of dyes and organic chemicals, as indicator.
Registry Numbers and Inventories.
EC Index Number
Toxic; Danger of cumulative effects; Dangerous for the Environment
Swiss Giftliste 1
Melting point, °C
62 - 64
Boiling point, °C
Vapor pressure, mmHg
0.027 (25 C)
Vapor density (air=1)
Odor Threshold Odor threshold 10 mg/L
Solubility in water
Partition coefficient, pKow
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep containers tightly closed, avoid heat, and avoid storage with less than 15% water. Protect from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
People exposed to the solid, or to a strong soln should wear protective clothing, hand protection, and, in confined spaces, the use of respiratory protective equipment. Safety goggles or face mask, butyl rubber gloves and boots.
Self-contained breathing apparatus.
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Salts of dnp explode when heated. Dry state is also explosive.
Reacts as weak organic acids Incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides.
Fire Extinguishing Agents: Water, dry chemical, CO 2 , foam
Combustible, will support its own combustion.
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Dissociation into irritating nitrogen oxides.
Blood pressure, pulse, respiratory rate, and temperature may all be elevated after exposure. In severe poisoning, restlessness, seizures, and coma may occur. Animal studies show developmental malformations involving the neurologic, ophthalmic, urologic, and skeletal systems of offsprings.
Nausea, vomiting, and abdominal pain may be prominent.
Dyspnea, tachypnea, cyanosis, and pulmonary edema may occur.
Yellow staining of skin occurs following contact with nitrophenols. Diaphoresis is common.
Cataracts, secondary glaucoma, symblepharon, paresis of accomodation, and nystagmus have been reported.
Seek medical assistance.
Remove from contaminated area. Administer oxygen and artificial respiration if needed.
Wash affected areas of skin and hair vigorously with soap and water. Dermal exposure is usually accompanied by a yellowish discoloration which does not have to be removed completely to prevent absorption.
Flush with water.
USCG CHRIS Code