Colorless to pale yellow crystalline solid.
As indicator in 0.3% Soln in 50% alcohol ph: 6.8 Colorless, 8.6 Yellow.
Registry Numbers and Inventories.
R 20/21/22 33 36/37/38 43
S 26 36/37/39
Mutagen; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
94 - 95
Boiling point, °C
Vapor pressure, mmHg
0.004 (25 C)
Vapor density (air=1)
Odor Threshold Odor threshold 3.0 mg/m3
1.485 g/cm3 (20 C)
Solubility in water
0.973 cp (184 C)
36.5 g/s2 (184 C)
Partition coefficient, pKow
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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.
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.
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation.
Stable under normal temperatures and pressures.
Strong oxidizing agents; Strong bases.
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Nitrophenol is combustible though it may take some effort to ignite. Nitrophenol aromatic nitrocompounds are flammable.
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Dangerous toxic fumes of NO x
Abnormally low blood pressure, reduced body temperature, rapid breathing, and rapid heart rate may develop with severe toxicity. Initial CNS excitation, including seizures, is commonly followed by CNS depression ranging from lethargy to coma and death. Fetotoxicity and skeletal abnormalities have been reported in animal experiments.
Harmful if swallowed. May cause irritation of the digestive tract. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. May cause methemoglobinemia, cyanosis, convulsions, and death. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood.
May cause respiratory tract irritation. May cause effects similar to those described for ingestion. May cause drowsiness, unconsciousness, and central nervous system depression.
Causes skin irritation. May be absorbed through the skin in harmful amounts. If absorbed, may cause symptoms similar to those for ingestion.
Causes severe eye irritation.
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.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Remove contaminated clothing and shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code
2908 90 00