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"WardsSci000477"
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Litmus Test Sheets
These litmus test sheets are available in litmus red (ACS) or litmus blue (ACS).
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pH Measurement/Indicator Kit
Students explore the wide range of acid and bases and their effect on indicator dyes with this kit.
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Hydrion™ Fractional Range pH Test Papers
Exhibit Sharp Color Change for Each 0.5 pH Interval
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