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Humic substances (HS) are colored relatively recal...

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Iron(II) sulfate (British English: iron(II) sulpha...

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Sodium hydroxide, also known as lye and caustic so...

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Sodium hydroxide, also known as lye and caustic so...

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Ammonium sulfate

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Sodium sulfate (also known as sodium sulphate or s...

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Sodium carbonate, Na₂CO₃·10H₂O, is the inorganic c...

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pH Indicator Papers & amp; Test Papers pH indicato...

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