SOP for Operation Procedure for Melting Point Apparatus

OBJECTIVE

To lay down the procedure for the Operation of the Melting Point Apparatus for better and error-free use

SCOPE

This procedure is applicable for the Melting Point Apparatus, installed in the Quality Control Department.

RESPONSIBILITY

Execution: Chemist and above - QC department.

Checking: Asst. Manager and above - QC department.

PROCEDURE

• Fill the capillaries with the sample powder for melting point determination or mini test tubes with sample liquid in case of boiling point determination.
• Insert the capillaries / mini test tubes through their appropriate openings on the right-hand side of the vessel.
• Switch on the power supply and illumination.
• Adjust the stirrer speed to its lowest and increase it gradually.

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• Adjust the heating control gradually to get a rate of increase of 3⁰C / minute initially and 1⁰C/minute in the vicinity of the expected melting/boiling point.
• Observe the substance in the capillaries / mini test tubes through the magnifier.

• When the substance starts melting or bubbles start forming, push the ‘DISPLAY HOLD SWITCH’ and note down the reading on the digital display.
• Switch OFF the apparatus and allow it to cool.

ABBREVIATION

SOP: Standard Operating Procedure

Q.A: Quality Assurance

No. : Number

Q.C: Quality control

Dept. : Department

REVISION HISTORY

Nil

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