The fume cupboard to handling of chemicals, Science

Assignment Help:

The Fume Cupboard : If a reaction uses or produces harmful gases, dusts or vapours, it poses a risk of inhalation. Such reactions should be carried out not on an open bench but in a fume cupboard. You would have read briefly about the designing part of fume cupboard in Unit 1 of this coarse. You may know that many laboratory operations need to be carried out in fume cupboard, e.g. working I with nitrating mixtures, benzoyl chloride etc. A demonstration activity will enable you to understand the importance and use of a fume cupboard. A typical laboratory fume cupboard is shown in Figure.

1390_A typical laboratory fume cupboard.png

'Figure: A typical laboratory fume cupboard.

A fume cupboard is constructed to allow the normal laboratory services of gas, water and electricity to be utilised. In addition, an air extraction system i.e. an exhaust fan, with a minimum statutory air flow, ensures that dangerous vapours are vented to the atmosphere.

Access to the fume cupboard is via sliding panels of safety glass. It is important to note the maximum height to which these panels can be safely raised before the air flow into the fume cupboard drops below the required rate.


Related Discussions:- The fume cupboard to handling of chemicals

A low-gradient stream, A low-gradient stream would most likely form a: ...

A low-gradient stream would most likely form a: meander

Method for water immiscible-insoluble liquid-chemical wastes, For water imm...

For water immiscible/insoluble liquid/solid wastes which can be emulsified The spillage of water immiscible/insoluble liquid/solid could be scrubbed with brush in presence of

Control and coordination, what is the regulation of steady conditions insid...

what is the regulation of steady conditions inside an organism

Studying broken rocks with a magnifying glass, Studying broken rocks with a...

Studying broken rocks with a magnifying glass Study freshly broken rocks with a magnifying glass and try to find crystals of dissimilar minerals. The crystals of dissimilar mi

Explain the nuclei or ganglia, Explain the Nuclei or Ganglia Deep withi...

Explain the Nuclei or Ganglia Deep within the cerebral hemispheres are groups of nerve cells called nuclei or ganglia which act as relay stations, where impulses are passed fro

Introduction sterilization and safe disposal methods , Introduction : In a...

Introduction : In any laboratory dealing with biological experiments, hazards can occur mainly due to chemicals and biological materials. In the previous exercise you have done th

Water-mill in golden era, Water-mill in Golden era: The water-mills wer...

Water-mill in Golden era: The water-mills were also invented in  the classical period. But they came to be widely used only in  the Middle Ages. The wind-mills and water-mills

Applications of laser, Applications of Laser: Due to its properties, ...

Applications of Laser: Due to its properties, laser light can be put to a number of uses in industry, medicine, communications etc. We will briefly describe  some of these us

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd