Basic Facilities Required in Chemistry Laboratory

Basic Facilities Required in Chemistry Laboratory

Every chemistry laboratory must have furnished with the following 8 basic facilities

Eyewash fountain/ Emergency shower:

Eyewash stations and emergency showers are used to flush away hazardous substances that can cause injury and a necessary backup to minimalize the effects of accident exposure to chemicals and to provide on-the-spot decontamination. Emergency showers can also be used effectively in flushing contaminants off clothing or extinguishing clothing fires. The first 15 to 20 seconds after exposure to a hazardous chemical are most critical. Delaying the treatment even for a few seconds may cause serious injury or loss.

Fire extinguisher:

To use a fire extinguisher pull the pin on the side of the hand-grip, direct the nozzle at the base of the flames, and species the hand-grip.

There are different types of fire extinguisher

  1. Foam and water fire extinguisher:

Foam and water fire extinguisher controls the fire by taking away the heat of the fire. Foaming agents also cut oxygen supply. Synthetic foams are based on synthetic surfactants for example fluoro-telomers, perfluoro-octanoic acid and per fluoro-octane-sulfonic acid, etc. Protein foams contain natural protein as the foaming agents for example fluoro-protein foam and film-forming fluoro-protein.

Water  Extinguisher:

Water extinguishers are used for class A fires only.

Water Mist Extinguisher:

Water Mist fire extinguishers are used for classes A and C and extinguish the fire by taking away the heat generated by chemical reactions.

 

 

Carbon dioxide fire extinguisher:

Carbon dioxide fire extinguisher works by taking away the oxygen at high pressure and also by removing the heat with the very cold discharge. Carbon dioxide extinguisher is used for minor electrical fires and organic liquid fires and is not effective on sodium-potassium or metal hydride fires (use and in such cases). Carbon dioxide is usually ineffective on class A fires and can be used on class B and C fires.

Dry chemical fire extinguishers:

Dry chemical fire extinguishers are most widely used in classes A, B, and C. It acts by interrupting the chemical reaction. It uses specially fluidized Siliconized mono ammonium phosphate powder.

Dry powder fire extinguishers:

These are commonly used for combustible metals fires are class D only and are ineffective on all other classes of fires.  Dry powder extinguishers are similar to dry chemicals. But they keep the fire away from the oxygen and fuel. It can also remove the heat of the fire. Dry powder is usually a mixture of mono ammonium phosphate and ammonium sulfate.

Wet chemical extinguishers:

This class extinguishes the fire by constructing a barrier between fuel and oxygen. Halogenated or clean agent extinguishers are prime primarily used for classes B and C to extinguish the fire by interrupting the chemical reaction. For example potassium acetate, potassium carbonate, and calcium citrate

Sand buckets:

Sand packets are used for fires involving active metals like sodium potassium lithium or metal hydrides

 

Fire blanket:

A fire blanket must be provided close to the workplace place. Overcoming the fire speed is essential if you have to cover the distance for the fire blanket it is better to roll the victim on the floor or use your lab coat. The emergency shower may also be helpful in this situation. Fire blankets are usually made of fiberglass and sometimes Kevlar.

Spill Kits:

Spilled or waste corrosive reagents such as concentrated acids, concentrated bases, and mercury, etc must be disposed of in the spill kits

Emergency Exit:

Special exits are required for emergencies such as a fire or any other emergency. Workers should leave the building by the nearest exit and call security. The emergency Bell to inform security personals should also be available in the chemistry laboratory

 

Electrical Cutoffs:

A separate main electric cut-off switch should be installed near the main door in every laboratory to save a victim of electrocution.

Gas Cut Off:

An emergency main gas cut-off valve located by one of the main doors of the laboratory should be installed to control residue gas pressure in the pipe. However, cutting off a gas valve closer to the problem would be a better choice which often located under the bench. Nevertheless, the instructor should close the main valve in the event of an evacuation

First aid:

A completely equipped first aid kit should be present in every laboratory to overcome minor injuries. No matter how minor, report all injuries to your instructor who will give first aid. In case of emergency also call 1122 directly if required.

Basic Facilities Required in Chemistry Laboratory

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