Course:SPPH381B/TermProject/Alkaline battery- Samin/Skin burns, irritation the nose and throat and difficulties breathing if inhaled (exposure to sulfuric acid)

Recognition

It is a pungent-ethereal, colorless to slightly yellow viscous liquid that is soluble in water at all concentrations

Sulfuric acid is not expected to be an inhalation hazard unless heated or misted. It is very toxic, can cause death. It can cause severe irritation of the nose and throat. It can cause life-threatening accumulation of fluid in the lungs (pulmonary edema). Symptoms may include coughing, shortness of breath, difficulty breathing and tightness in the chest. Long-term damage may result from a severe short-term exposure. If skin contact occurs then it can cause pain, redness, burns, and blistering. Permanent scarring can result. A severe exposure can cause death (because it is corrosive). If eye contact occurs then it causes severe burns with redness, swelling, pain and blurred vision. Permanent damage including blindness can result. If ingested then it can burn the lips, tongue, throat and stomach. Symptoms may include nausea, vomiting, stomach cramps and diarrhea. Permanent damage can result. Effects of Long-Term (Chronic) Exposure:

• At low concentrations: It can cause dry, red, cracked skin (dermatitis) following skin contact.
• At high concentrations: May wear away tooth enamel when breathed in. May harm the respiratory system. It can irritate and inflame the airways.

Strong inorganic mists containing sulfuric acid are carcinogenic to humans. Has been associated with: cancer of the larynx, lung cancer.

Evaluation

Sulfuric acid is very toxic and corrosive in nature as classified by WHMIS( Workplace Hazardous Materials Information System)1988. It is clear, colourless oily liquid and is odourless. Before beginning employment and at regular times thereafter (at least annually), lung function tests should be performed. If symptoms develop or overexposure is suspected then chest X-ray should be performed. Any evaluation should include the past and present symptoms with an exam.

Control

1. Use of PPE, especially gloves, mask and protective eye wear

2. While handling, avoid generating vapours or mists.

3. Immediately report leaks, spills or failures of the safety equipment (e.g. ventilation system)

4. Prevent accidental contact with incompatible chemicals.

5. Never add water to a corrosive. Always add corrosives slowly to cold water. If product is transferred to another container, ensure new container is suitable for the product. Never reuse empty containers, even if they appear to be clean.

6. Do not touch damaged containers or spilled product unless wearing appropriate protective equipment.

7. Not-to-exceed levels in air, water, soil, or food that are usually based on levels that affect animals and people

8. Regularly inspect for physical changes or signs of crystallization, damage or leaks