|
|
 |
 |
 |
 |
 |
| Safety Data Sheet for Nitric Acid 20 – 70 % |
| 9. PHYSICAL AND CHEMICAL
PROPERTIES |
| Appearance |
Colourless to yellow liquid |
| Density Liquid g/m3 (@200C) |
20%: 1.1150 60% :1.3667
|
| Odour |
Acrid |
| Molecular Weight |
63 (HNO3) |
| pH |
< 1 |
| Solubility |
Miscible with water in all proportions |
| Boiling Point 0C |
103.40C (20%); 120.40C (60%) |
| Melting Point 0C |
- 170C (20%); -220C (60 %) |
| Vapour Pressure at 0C |
0.77 kPa at 200C (60%) |
| Flash Point |
Not applicable. |
| Flammability |
Not applicable. |
| Auto Flammability |
Not applicable. |
|
|
| 10. STABILITY AND REACTIVITY |
| Stability |
The product is stable under normal conditions of storage and handling |
| Conditions to Avoid |
High Temperatures |
| Material to Avoid: |
Contact with combustible materials, reducing agent, alkalies, metallic powders, hydrogen sulphide, alcohols, chlorates and carbides, carbon steel, monel, copper, and several other metals and alloys. |
| - Hazardous reactions/decomposition products |
Contact with combustible material may cause fire. May assist combustion.
Exothermic reaction with water.
May react violently with reducing agents, strong base, organic materials chlorides and finely divided metals. Reaction with most common metals liberates hydrogen and toxic oxides of nitrogen.
Corrosive gases/vapours.
|
|
|
| 11. TOXICOLOGICAL INFORMATION |
| Effects of Substance: |
| - On Eyes |
Immediate pain, severe burns, permanent corneal damage which may result in blindness. |
| - On Skin |
Pain, severe burns and brownish or yellow stains.
Prolonged and repeated exposures to diluted solution may cause irritation, redness, drying and cracking of the skin.
|
| - By Skin Absorption |
No known systemic effects. |
| - By Ingestion |
Pain, severe burning in the mouth, throat and damage to gastro-intestinal tract |
| - When Inhaled (acute effect) |
Mists and vapours may cause irritation of nose, throat and respiratory tract, transient cough and broncho - constriction. |
| - When Inhaled (chronic
effect) |
Severe over exposure may result in lung collapse and pulmonary oedema which can be fatal. Prolonged or repeated exposure to mists or vapours of nitric acid may result in impaired lung function and possible discolouration and erosion of teeth.
|
|
|
| 12. ECOLOGICAL INFORMATION |
| Mobility |
Soluble in water. High mobility in soil. |
| Persistence/Degradability |
There is evidence of slow degradation in soil and water. |
| Bio-accululation |
The product has low potential of bio-accumulation |
|
|
| 13. DISPOSAL CONSIDERATIONS |
| General |
Nitric acid should be disposed of in accordance with local or national legislation. |
|
|
|
|
|
 |
|
|
 |
 |
 |
|
|
|
|
|
