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"Sulphuric Acid Measurement"



2005

Hi I'm Freddy from Indonesia, I'm running an aluminium extrusion factory here in Jakarta. What I would like to ask you is how do I measure the composition of a sulphuric acid. I hope you could give me an answer soon, thank you.

Fredy Lie
PT Alumex Perkasajaya - Jakarta, Indonesia
^


2005

Pipette a 1ml sample into a flask and dilute with 100 ml water.
Add 4-6 drops methyl orange indicator solution.
Titrate with 1N Sodium Hydroxide until yellow end point.
Calculation:
ml of 1N NaOH x 2.5 = %acid

John Martin
- Wales
^


2006

weigh 1gm sample in erlenmeyer flask
add 100 ml D.I. water
with 3 drops phenolpthalein indicator
titrate with 1.0N NaOH
calculations:vol.of titrant*4.904/weight

Teody Delgado
- Manila, Philippines
^

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