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A thimble is a small pitted cup worn on the finger...

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Sodium dodecyl sulfate (SDS) or sodium lauryl sulf...

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Benzene is an organic chemical compound with the m...

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Oxalic acid is an organic acid with the systematic...

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Synthetic fibres[edit] Artificial fibres can be ma...

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Silicon dioxide, also known as silica, is an oxide...

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Total dissolved solids (TDS) is a measure of the d...

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Histidine (symbol His or H)[2] is an essential ami...

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