Explosives-storage of chemicals, Science

Assignment Help:

Explosives : As defined earlier, explosives release a large amount of gas and energy in a very short time. These are of four basic types:

Mixed gases - Usually the mixture is of a gas with air or hydrogen. Any' flammable liquid as a vapour or aerosol will similarly create an explosive mixture although some of these mixtures may, in the strictest sense, be considered to burn very quickly, e.g. a petrol lair mixture. It would take only the smallest spark, such as the static spark of a nylon lab coat, to ignite this kind of mixture and anyone who witnesses that kind of accident probably wouldn't be interested in the scientific differences between an explosion and a rapid burn - the devastation in the laboratory would be the same!

Flammable dust - When mixed with air, this can cause two explosions. The first generates more dust which then causes a second, more violent explosion. Ordinary dusts may also cause severe explosion when mixed with air, and this is one of the commonest causes of explosion in industrial environments, e.g. flour, wood dust, dycopodium powder. They can cause lung problems too!

Oxidiser/Reducer mixture - Mixture of strong oxidising and reducing agents invariably produce highly explosive results, e.g. gunpowder.

Unstable compounds - Such as picrates, sodamide, potassium metal, azides, acetylides, etc. The list of potentially explosive substances of an explosive mixture may be present as an impurity and is therefore "an unknown", e.g.

Leclanche cells utilising manganese dioxide which can contain carbon dust as an impurity.

 

 


Related Discussions:- Explosives-storage of chemicals

Explain the creatinine clearance test, Explain the Creatinine Clearance Tes...

Explain the Creatinine Clearance Test It determines how efficiently the kidneys are clearing creatinine from the blood and serves as an estimate of kidney function. It compare

Rocks, would quartzite or sandstone break more easily. please explain

would quartzite or sandstone break more easily. please explain

Fst-01, describe the factors which decide the broad area of scientific acti...

describe the factors which decide the broad area of scientific activity

FST.., Describe the factors which decide the broad area of scientific activ...

Describe the factors which decide the broad area of scientific activity/

Discuss handling of subpoena by mrd, Question 1 What is Quality assuran...

Question 1 What is Quality assurance? Explain JCAH Quality Assurance programme activities 2 Briefly discuss the AHIMA standards criteria to keep legally sound records. 3 Explai

What are the stages of development of a tropical cyclone, Question : a)...

Question : a) Define i) relative humidity. b) Why is it generally cloudy in the vicinity of a low pressure area and sunny in the vicinity of high pressure? c) What are th

Technology in industry, Technology in industry: One aspect of  technolo...

Technology in industry: One aspect of  technology is that the latest scientific methods are used in prduction. This, in turn, depends on the availability of the-right type of s

Essential nutrients, Essential nutrients: Our body is a biochemical fac...

Essential nutrients: Our body is a biochemical factory which can make many compounds  for its needs. However, there are limits to this, and what our body cannot make has to be

Explain the actions of autonomic nervous system, Explain the Actions of Aut...

Explain the Actions of Autonomic Nervous System (ANS) The actions of the autonomic nervous system are largely involuntary (in contrast to those of the somatosensory system). Th

Explain the mechanism of secretion of gastric juice, Mechanism of Secretion...

Mechanism of Secretion of Gastric Juice There is always a small quantity of gastric juice present in the stomach even when there is no food in the stomach. This is known as fa

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