Determination of Inhibitor Content in Acrylic Monomer

Determination of Inhibitor Content in Acrylic Monomer with color spectrometer matching.

>DETERMINATION OF MELTING POINT

APPARATUS

A). 500 ml Separating funnel.

B). 100 ml measuring cylinder.

C). 10 ml measuring flask.

D). 250 ml Iodine flask

E). Color Matching Machine.

Inhibitor

REAGENTS

A). Sample of Monomer.

B). Standard sample with same PPM level of inhibitor.

C). 5 % Sodium Hydroxide Solution.

D). Inhibitor Free Monomer Sample.

METHOD FOR THE PREPARATION OF REAGENTS

METHOD FOR THE PREPARATION OF 5 % Sodium Hydroxide Solution 

5 gm in NaOH in 100 gm of Distilled water. 

METHOD FOR THE PREPARATION OF 100 PPM of Inhibitor Solution

0.01 gm of HQ dissolves in 100 ml of Methanol.

METHOD FOR THE PREPARATION OF Inhibitor-free Monomer

Wash the Fresh Monomer sample with 50 % NaOH solution till a light yellow color appears in the NaOH solution.

MEHQ Specification

Procedure

A). Take 10 ml of Fresh Monomer Sample in 500 ml of separating funnel.

B). Now add 90 ml of  5% of NaOH solution, and mix thoroughly 3-4 times.

C). Now wait, until the sample gets separated, (now we can see the slight yellow color in NaOH Solution).

D). Now Drain out almost the full quantity of  NaOH Solution carefully in an iodine flask.

E). Calibrate the color spectrometer matching, machine in transmittance mode with 5 % of NaOH solution.

F). Now take the reading of the sample against the Standard solution of the same inhibitor level.

Determination Of Inhibitor Content in Acrylic Monomer

Polymer test Methods in Acrylic Monomer

BANTI SINGH

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