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Why does concentrated HNO3 stain skin yellow?
Concentrated HNO3 (nitric acid) can react with the proteins in the skin to form a yellow-colored compound called xanthoproteic acid. This compound can absorb light in the visible spectrum, resulting in a yellow stain on the skin. This reaction is a chemical burn and should be treated immediately.
What you should do if a concentrated acid falls on your body?
If concentrated acid falls on your body, immediately rinse the affected area with copious amounts of water for at least 15 minutes to dilute the acid and flush it away. Remove any contaminated clothing while rinsing. Seek medical attention promptly, as acid burns can be serious and may require additional treatment.
What is it important that liquids especially acids and alcohol spilled on any part of the microscope?
It is important to clean any spills on a microscope immediately to prevent damage to the lenses and other components. Acids and alcohol can corrode and degrade the delicate parts of the microscope, impacting its performance and longevity. Regular cleaning and maintenance can help ensure the microscope functions properly.
What are the safety measures in handling acids and bases in pH?
When handling acids and bases, it is important to wear appropriate personal protective equipment such as gloves, goggles, and lab coats. Acids and bases should be stored separately and in designated areas to prevent accidental mixing. Proper ventilation should be ensured to avoid inhaling harmful fumes, and spills should be cleaned up immediately with neutralizing agents.
Are acids most dangerous when concentrated or diluted?
Acids are most dangerous when concentrated because they have a higher potential to cause severe burns and tissue damage. When diluted, their corrosive properties are reduced, making them less harmful. However, even diluted acids can still pose risks and should be handled with care.
Food contact surface must be cleaned and sanitized at least every how many hours?
Equipment must be CLEANED at least every 24 hours.
Why should a surface be cleaned properly before painting?
So the paint will stick and not peel off later.
How should the work surface of the laminar airflow hood be cleaned?
The work surface of a laminar airflow hood should be cleaned regularly using a disinfectant solution or 70% ethanol. Wipe the surface gently with a clean cloth or lint-free wipes, making sure not to disrupt the laminar airflow. Allow the surface to air dry before using the hood again.
Why should oil spills be cleaned up quickly?
it has to be cleaned up quickly because it wil stick to the surface and would be hard to clean up and could be a danger hazard.
What propertie should a food contact surface have?
Smooth, non-porous, unpainted, easily cleaned, level, undamaged.
Which water is safe to drink groundwater or surface water?
Neither unless it is processed and cleaned. Unclean water should not be drunk.
Should old coins be cleaned?
Yes, cleaning a silver coin will reduce its value. Coins that are cleaned can be easily detected. The coin will not be worthless, but may fetch a lower price. It is better to leave it tarnished.
How often should a hamster be cleaned?
A hamster cage should be cleaned weekly.
How should pool water be treated after finding a dead bird in water?
According to me the pool should be cleaned thoroughly so that it is hygienically safe for the the people using the pool.The dead bird should be removed immediately & disopsed.
How often should a horse box be cleaned?
A horses stall should be cleaned every day.
How should tender vegetables be cleaned before use?
How should tender vegetables be cleaned before use?
Everyone should get their chimney cleaned once a year.?
Everyone should get their chimney cleaned once a year.
