Which fume cupboard is recommended for conducting perchloric acid?
Fume hoods for the use of perchloric acid should be constructed of shatterproof materials and have surfaces and duct work with smooth, cleanable joints.
How do you handle perchloric acid?
Safe Handling
- Wear appropriate Personal Protective Equipment (lab coat, safety glasses, and acid-resistant gloves) when handling perchloric acid.
- Do not handle perchloric acid on a wooden surface, and do not let it come into contact with oxidizable materials such as cloths, paper towels, or grease.
How do you use a fume hood?
Avoid cross drafts and disruptive air currents in front of the fume hood. Ensure that windows and doors near the fume-hoods are CLOSED. Always keep work at least 15cm in from the opening of the fume hood. Use the sash as a safety shield when boiling materials or conducting an experiment with reactive chemicals.
What is the charge of perchloric acid?
0
Perchloric acid, with not more than 50% acid appears as a clear colorless odorless aqueous solution….3.1Computed Properties.
| Property Name | Property Value | Reference |
|---|---|---|
| Heavy Atom Count | 5 | Computed by PubChem |
| Formal Charge | 0 | Computed by PubChem |
What is the role of perchloric acid?
Perchloric acid is used to separate potassium from sodium, and in many laboratory tests and industrial processes. Uses for the salts of perchloric acid include explosives and plating metals. Perchloric acid may explode, and it decomposes on heating producing toxic and corrosive fumes.
What is basicity of perchloric acid?
In Perchloric acid its basicity is 1 as there is one $Cl-OH$ bond in the molecule and three $Cl-O$ bonds due to which it is oxidizing power is less. Basicity of oxoacids of P is equal to the number of $P-OH$ bonds in the molecule.
Why is it important to work in the fume hood during the step?
Fume hoods, or fume cupboards, work to ensure the safety of lab personnel while working with hazardous materials by continuously delivering airflow away from the user. When used properly, fume hoods can prevent users and the environment from toxic gases, explosions, and spills.
How effective is a fume hood?
Fume hoods are designed to keep laboratory professionals safe while working with hazardous materials. In order for fume hoods to provide protection, users must follow basic safety practices. No matter how well a fume hood is designed, it won’t be effective unless proper laboratory safety measures are taken.
When to use a perchloric acid fume hood?
Perchloric acid fume hoods are single use hoods and should only be used for perchloric acid digestions. 2. Each perchloric acid fume hood shall have its own exhaust system. Perchloric acid fume hoods should not be manifolded together. 3.
What are the design recommendations for perchloric acid exhaust systems?
DESIGN RECOMMENDATIONS FOR PERCHLORIC ACID EXHAUST SYSTEMS 1. Perchloric acid fume hoods are single use hoods and should only be used for perchloric acid digestions. 2. Each perchloric acid fume hood shall have its own exhaust system. Perchloric acid fume hoods should not be manifolded together.
What happens to perchloric acid at room temperature?
While the vapor pressure of the perchloric acid at room temperature is not significant in solutions of less than 72%, aerosol electrochemical or digestive reaction products may dry to perchlorate salts or other materials which may collect as a powder inside the fume hood and ductwork. Such deposits may be explosive!
What should I use to neutralize perchloric acid?
Perchloric acid, though, can be neutralized with water and flushed from the exhaust system. In addition, perchloric acid is extremely corrosive, and it is recommended that exhaust system components (ductwork, fans, etc.) be fabricated of no less than 316 SS or fiberglass.