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Why we add buffer

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Why we add buffer 7 and 1:4 toluene and 2-propanol to crude oil ahead of titrate with Cdcl2 to dtermine H2S in crude oil.And can toluene and 2- propanol be replaced with other solvent in terms of cost and safety.

Reference no: EM13295100

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Why we add buffer : Why we add buffer 7 and 1:4 toluene and 2-propanol to crude oil ahead of titrate with Cdcl2 to dtermine H2S in crude oil.And can toluene and 2- propanol be replaced with other solvent in terms of cost and safety.
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