Purity Test Methacrylic Acid | Methacrylic Acid Uses

Determination of purity of methacrylic acid by a titration method with 1(N) sodium hydroxide (NaOH) solution and using in Phenolphthalein indicator solution.

APPARATUS

a). 5 ml stoppered weighing bottle.

b). 250 ml conical flask.

c). 100 ml measuring cylinder.

d). Burette.

REAGENTS

a). Standard 1(N) sodium hydroxide (NaOH) solution.

b). Phenolphthalein indicator solution.

PROCEDURE

Take a Methacrylic acid sample in a 5 ml stoppered weighing bottle. From this carefully transfer about 1 gm (weighing accurately) sample into a 250-ml conical flask. 

Add about 100-ml distilled water and shake well to mix properly. Titrate against standard 1(N) sodium hydroxide (NaOH) solution taken in a burette using phenolphthalein as indicator.

Calculation of Purity 

Assay (%) = Titre value (ml) x normality of NaOH x 8.609 / Wt of Methacrylic acid sample taken (gm)

Methacrylic acid Formula

Methacrylic acid chemical Formula is C4H6O2.

Use Of Methacrylic Acid

Mainly used methacrylic acid is in paints, adhesives, and leather treatment agents, making plastic sheets and other organic chemicals methacrylic acid is also used as a raw material in the manufacture of ion-exchange resins.

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