Dilute Base For SO2, 1oz

Item No. 170-1603
Dilute Acid (PN 170-1589) and Dilute Base (PN 170-1603) are used to check the indicator solution when measuring total sulfur dioxide with aeration/oxidation method. Add dilute acid to the indicator solution until it turns deep purple, then add dilute base until it turns bright green. If they do not
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Description

Dilute Acid (PN 170-1589) and Dilute Base (PN 170-1603) are used to check the indicator solution when measuring total sulfur dioxide with aeration/oxidation method.

Add dilute acid to the indicator solution until it turns deep purple, then add dilute base until it turns bright green. If they do not turn a bright royal purple or bright emerald green, the indicator will produce falsely low results and needs to be replaced.

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