Description
1. Product Identification – Nitric Acid 55% AR
Product Name: Nitric Acid 55% AR
CAS No.: 7697‑37‑2
UN Number: UN 2031
Synonyms: Nitric Acid solution
Recommended Use: Laboratory reagent, analytical chemistry
Restrictions: Not for direct human contact
2. Hazard Identification (GHS‑ZA / R4598)
GHS Classification:
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Oxidising Liquids, Category 2 (H272)
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Skin Corrosion/Irritation, Category 1 (H314)
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Serious Eye Damage, Category 1 (H318)
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Corrosive to Metals, Category 1 (H290)
Signal Word: DANGER
Hazard Pictograms:
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Oxidiser (GHS03)
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Corrosion (GHS05)
Hazard Statements:
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H272: May intensify fire; oxidiser
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H290: May be corrosive to metals
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H314: Causes severe skin burns and eye damage
Precautionary Statements:
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P210: Keep away from heat/sparks/open flames/hot surfaces – no smoking
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P220: Keep/Store away from clothing and combustible materials
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P280: Wear protective gloves/eye protection/face protection
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P305+P351+P338: IF IN EYES: Rinse cautiously with water for 15 min; remove contact lenses if present
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P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
3. Composition / Information on Ingredients
| Chemical Name | CAS No. | Concentration (% w/w) |
|---|---|---|
| Nitric Acid | 7697‑37‑2 | ~55% |
| Water | — | Balance |
4. First Aid Measures
Inhalation: Remove to fresh air immediately. Keep at rest. Seek medical attention if symptoms occur.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of water for at least 15 min. Seek urgent medical attention.
Eye Contact: Rinse immediately with water for at least 15 min, lifting eyelids. Seek urgent medical care.
Ingestion: Do not induce vomiting. Rinse mouth. Get medical help immediately.
Notes to Physician: Treat symptomatically. Corrosive injury management.
5. Fire‑Fighting Measures
Suitable Extinguishing Media: Water spray, alcohol‑resistant foam, dry chemical, CO₂.
Unsuitable Media: Combustible organics that may react.
Specific Hazards: Oxidising – may intensify fire. Decomposes on heating releasing NOx gases.
Protection: Use full protective gear & SCBA.
6. Accidental Release Measures
Personal Precautions: Evacuate non‑essential personnel. Wear PPE (acid‑resistant gloves, goggles, apron, boots).
Environmental: Prevent entry into drains, sewers, watercourses. Notify authorities if spill enters environment.
Methods for Cleanup: Contain spill, neutralise slowly with alkaline material (avoid splashing), absorb with inert material. Collect in labelled containers for disposal.
7. Handling and Storage
Handling: Avoid contact with skin, eyes, clothing. Use in well‑ventilated area or fume hood. Do not mix with incompatible substances.
Storage: Store in cool, dry, well‑ventilated area. Keep container tightly closed. Store away from reducing agents, organics, metals, bases, combustible materials.
Materials Incompatibility: Most metals, reducing agents, organics, strong bases.
8. Exposure Controls / Personal Protection
Exposure Limits: No specific local OEL provided; follow workplace exposure limits if set locally.
Engineering Controls: Local exhaust ventilation.
PPE:
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Eyes: Chemical splash goggles & face shield
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Skin: Acid‑resistant gloves (e.g., neoprene), acid‑resistant clothing
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Respiratory: Suitable respirator if ventilation inadequate
9. Physical and Chemical Properties
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Form: Liquid
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Colour: Clear to pale yellow
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Odour: Pungent, acrid
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pH: < 1
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Boiling Point: ~120 °C (decomposes)
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Flash Point: Not applicable
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Density (20 °C): ~1.33–1.35 g/cm³
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Solubility: Miscible with water
10. Stability and Reactivity
Stability: Stable under normal conditions.
Reactivity: Strong oxidiser; reacts vigorously with many organics and reducing agents. Decomposes on heating releasing nitrogen oxides. Avoid contact with metals and bases.
11. Toxicological Information
Acute Effects: Corrosive to skin and eyes. Severe respiratory irritation if inhaled.
Chronic: Repeated exposures may cause respiratory and dental erosion.
12. Ecological Information
May cause long‑term adverse effects in aquatic environments. Avoid release to environment. Follow local regulations.
13. Disposal Considerations
Dispose of in accordance with South African hazardous waste regulations. Do not release to sewer or watercourses. Use authorised hazardous waste contractor.
14. Transport Information
UN No.: 2031
Proper Shipping Name: Nitric Acid
Class: 8 (Corrosive), Subsidiary 5.1 (Oxidiser)
Packing Group: II
Marine Pollutant: No
15. Regulatory Information
This product is regulated under South African GHS‑ZA (R4598). SDS and labelling comply with local statutory requirements. Workers must be trained as per OSHA‑aligned standards.
16. Disclaimer
This SDS is provided as a guide for safe handling, storage, use, and disposal of the product. Global Grade Supplier makes no warranties about its accuracy or suitability. Users are responsible for ensuring the product is appropriate for their use, following all applicable laws and safety standards, and taking proper precautions. This SDS does not replace local regulations or company procedures; seek professional advice if needed.
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