| Safety Data Sheet for Nitric Acid 20 – 70 % |
| 4. FIRST AID MEASURES |
| Eye Contact |
Immediately irrigate the eyes with eyewash solution or clean water for at least 10 minutes.
Continue irrigation until medical attention can be obtained.
Hold eyelids open during flushing
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| Skin Contact |
Immediately drench with water, remove contaminated clothing and wash or shower the affected skin with plenty of water.
Obtain medical attention immediately.
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| Inhalation |
Move the injured person to fresh air at once.
Keep the patient warm and at rest.
Administer oxygen if competent person is available.
Perform artificial respiration, if breathing has stopped or shows sign of failing.
Obtain medical attention urgently.
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| Ingestion |
Do not induce vomiting.
If the person is conscious, wash out mouth with water and give 2 or 3 glasses of water or milk to drink.
Obtain immediate medical attention and transport the patient to hospital.
Treatment may be needed for pain and shock.
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| Further medical advice |
Following exposure the patient should be kept under medical review for at least 48 hours as delayed pulmonary oedema may develop. |
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| 5. FIRE FIGHTING MEASURES |
| Extinguishing Media |
Foam, water and dry powder. Use a water spray to cool fire-exposed containers and structures |
| Specific hazards if product is involved in a fire. |
Not combustible, but having oxidising properties it may react with many combustible materials causing fires and releasing toxic fumes (nitrogen oxides). May explode on contact with a powerful reducing agent. Reacts with most common metals to liberate hydrogen which can form explosive mixtures with air. Toxic fumes (oxides of nitrogen) may be given off. |
| Special protective equipment |
Wear self-contained breathing apparatus and full protective clothing |
| Further information |
Collect large amounts of contaminated extinguishing water separately, do not allow to reach sewerage or effluent systems. |
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| 6. ACCIDENTAL RELEASE MEASURES |
| Personnel Precautions |
Wear full protective clothing - see Exposure Controls / Personal Protection (Section 8). Ventilate area of spill or leak to disperse vapours |
| Environmental Precautions |
Take care to avoid the contamination of watercourses and drains. Inform appropriate Authority in case of accidental contamination of watercourses |
| Methods for Cleaning up |
Swill away small spillage with copious quantities of water. Waste water must be disposed of correctly. Before discharging sewage into treatment plants, neutralisation is generally required. Contain large spillage with sand or earth as necessary. Do not use organic compounds, sawdust etc. Neutralise cautiously with soda ash and/or lime and recover for disposal. Pump large amounts into containers. Containers should preferably be of: Stainless steel 1.4541 (DIN 17440) or plastic: (PVC, possibly polyethylene). Do not use: Carbon steel, rubberised steel, polypropylene. Seek advice from the manufacturer if in doubt |
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| 7. HANDLING AND STORAGE |
| Handling |
Wear eye and hand protection when handling small quantities.
Provide adequate ventilation in view of insidious action of the fumes.
When diluting, always add acid to water not water to acid.
Wear full protective equipment where there is a risk of leaks or splashes
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| Storage |
Store in cool, well ventilated area, away from potential sources of heat and direct sunlight.
Keep away from combustible materials, reducing agents, and strong bases.
Protect containers from corrosion and physical damages. |
| Materials |
Containers should preferably be of stainless steel, 1.4541 (DIN 17440). Otherwise contact manufacturer if in doubt.
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| 8. EXPOSURE CONTROLS/PERSONAL
PROTECTION |
| Personal Protective Equipment |
PVC suit.
PVC gloves.
Acid resistant boots.
Chemical goggles.
Full B.A. equipment if there is a risk of exposure to fumes.
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| Occupational Exposure Limits |
TLV/TWA : 2 ppm = 5.2 mg/m3
TLV- STEL : 4 ppm = 10 mg/m3
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| Installation Control |
See Handling and Storage (Section 7). |
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