| Safety Data Sheet for Sulphuric Acid, 94 - 98% |
| 6. ACCIDENTAL RELEASE MEASURES |
| Personnel Precautions |
Wear full protective clothing - see Exposure Controls / Personal
Protection (Section 8). |
| Environmental Precautions |
If spillage or contaminated washings causes contamination of water courses, drains or vegetation, inform relevant authorities. |
| Methods for Cleaning up |
Small spillages - Flood with copious quantities of water. (CAUTION
see Stability and Reactivity - Section 10).
Large spillages - Contain spillage using earth, sand or vermiculite, pump into an
emergency tank. Spread soda ash or crushed limestone over area, sweep up into containers.
Repeat.
Wash down area with water.
Dispose of containers and sulphuric acid if necessary using licensed waste disposal
contractors. Collect and treat all water used in the clean up - see Environmental
Precautions. |
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| 7. HANDLING AND STORAGE |
| Handling |
Provide safety showers and eyebaths in areas where accidental exposure is
possible.
Smoking should be prohibited when handling sulphuric acid.
When diluting sulphuric acid always add acid to water, slowly and with continual stirring. |
| Storage |
Store sulphuric acid away from reactive materials.
Sulphuric acid should be stored in a closed vessel.
For concentrations greater than 96% some precautions against freezing may be necessary. |
| Materials |
UNSUITABLE
Most common metals will be corroded if the acid is weak (<70%).
Nylon.SUITABLE
Stainless steel (for >70%)
Mild steel (for >70%)
PTFE
KEL-F
Glass
Certain plastics and rubbers
PVC composites
HDPE
Hypolon, ebonite etc. may be suitable - check with equipment supplier. |
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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. |
| Occupational Exposure Limits |
TWA: 1mg/m3 |
| Installation Control |
See Handling and Storage (Section 7). |
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| 9. PHYSICAL AND CHEMICAL PROPERTIES |
| Appearance |
Colourless to dark brown oily liquid. |
| Density Liquid kg/m3 |
@ 200C 96%: 1834 |
| Odour |
Acrid odour or
odourless. |
| Molecular Weight |
98.07 (H2SO4) |
| pH |
Not applicable. |
| Solubility |
Completely miscible with water but exothermic. |
| Boiling Point 0C |
96%: 3300C |
| Melting Point 0C |
96%: -100C |
| Vapour Pressure (at 200C) |
65%: 2.14mbar 90%: 0.006mbar |
| Flash Point |
Not applicable. |
| Flammability |
Not applicable. |
| Auto Flammability |
Not applicable. |
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