| Product Identification | Back to Contents | 【Product Name】
2-Hydroxynitrobenzene | 【Synonyms】
2-Hydroxynitrobenzene
2-Nitrophenol | 【CAS】
88-75-5 | 【Formula】
C6H5NO3 | 【Molecular Weight】
139.11000000000001 | 【EINECS】
201-857-5 | 【RTECS】
SM2100000 | 【RTECS Class】
Other | 【Merck】
12,6717 | 【Beilstein/Gmelin】
775403 | 【Beilstein Reference】
4-06-00-01246 | 【EC Class】
irritant |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Light yellow crystals with an aromatic odor. | 【Solubility in water】
Soluble | 【Melting Point】
43 - 45 | 【Boiling Point】
214.6 | 【Vapor Pressure】
0.093 (25 C) | 【Density】
1.599 g/cm3 (20 C) | 【pKa/pKb】
7.23 (pKa) | 【Partition Coefficient】
1.77 | 【Heat Of Vaporization】
48.1 kJ/mol | 【Heat Of Combustion】
-2871 kJ/mol | 【Usage】
Acid-base indicator. Corrosion inhibitor for aluminium-copper alloy. | 【Vapor Density】
1.5 | 【Odor threshold】
0.11-0.13 mg/m3 | 【Refractive Index】
1.5723 (50 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice. | 【Inhalation】
Remove from exposure to fresh air immediately. | 【Skin】
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop. |
| Handling and Storage | Back to Contents | 【Storage】
Tightly closed containers. Keep away from heat and water and from combustible organic or other readily oxidizable material. | 【Handling】
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. |
| Hazards Identification | Back to Contents | 【Inhalation】
Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. Can be a route of absorption by the body with symptoms like ingestion. | 【Skin】
Causes irritation to skin. Symptoms include redness, itching, and pain. May be absorbed through the skin with possible systemic effects. | 【Eyes】
Causes irritation, redness, and pain. | 【Ingestion】
Toxic. Harmful if swallowed. Can cause formation of methemoglobin, resulting in cyanosis (blue lips), headaches, dizziness and collapse. Exposure to high concentrations may cause breathing trouble, a slow pulse, fall in blood pressure, convulsions and even death. | 【Hazards】
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. | 【EC Risk Phrase】
R 20/22 33 36/37/38 | 【EC Safety Phrase】
S 26 36/37/39 | 【UN (DOT)】
1663 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Wear impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact. Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. | 【Respirators】
For conditions of use where exposure to the dust or mist is apparent, a half-face dust/mist respirator may be worn. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. | 【Exposure Effects】
Chronic exposure may damage the liver and kidneys. | 【Poison Class】
2 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
97 | 【Autoignition】
550 | 【Fire Fighting】
Wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode. Extinguishing agents: water, foam, dry chemical, carbon dioxide. Do not allow water runoff to enter sewers or waterways. | 【Fire Potential】
Combustible solid. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Incompatibilities】
Halogen acids and strong oxidizing agents. In liquid/molten state, reacts violently with potassium hydroxide. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen. | 【Combustion Products】
Toxic and irritating fumes of unburned material and oxides of nitrogen can form in fire. |
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