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Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

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Sulphuric Acid on the Web

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Handbook of Sulphuric Acid Manufacturing
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Analytical Procedures - Acid Concentration (Mercury Solutions)
February 24, 2002

Introduction
Equipment
Reagents
Procedure
Calculation
Associated Links

Introduction

Sulfuric acid is neutralized with sodium carbonate using methyl-orange as an indicator.

Equipment

Reagents

 

Procedure

Transfer a 25 ml filtered sample to a 250 ml E-Flask.  Add approximately 100 ml water and boil for 5 minutes to remove dissolved SO2 content.  Add 2 to 3 drops of methyl-orange.  Titrate with sodium carbonate until the colour changes from orange to yellow.

Calculation

ml Na2CO3 x 0.05 x 1000 / 25 = g H2SO4/ l

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