Sodium iodide ≥99.5%, AnalaR NORMAPUR® ACS analytical reagent

Supplier: VWR Chemicals

Sodium iodide ≥99.5%, AnalaR NORMAPUR® ACS analytical reagent

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Sodium acetate trihydrate, BAKER ANALYZED® ACS, J.T.Baker®

Supplier: Avantor

Sodium acetate trihydrate, BAKER ANALYZED® ACS, J.T.Baker®

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Bromocresol green sodium salt in ACS Reagent grade water ≥90% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Bromocresol Green (BCG), also known as bromcresol green, is a synthetic, anionic, triphenylmethane dye belonging to the phthalein and sulphonphthalein dyes group. It is commonly used as a pH indicator as it changes colour from yellow to blue-green at pH 3,8 to 5,4. The monosodium salt of bromocresol green is highly ionisable in water. The dye at a higher pH level produces a large and weakly lipophilic dianion.

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Silver nitrate 99.8-100.5%, AnalaR NORMAPUR® Reag. Ph. Eur., ACS analytical reagent

Supplier: VWR Chemicals

Silver nitrate 99.8-100.5%, AnalaR NORMAPUR® Reag. Ph. Eur., ACS analytical reagent

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Ammonium sulphate ≥99.0%, granular, AR® ACS, Macron Fine Chemicals™

Supplier: MACRON AVANTOR BRAND

Ammonium sulphate ≥99.0%, granular, AR® ACS, Macron Fine Chemicals™

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Potassium hydrogen phthalate 99.95-100.05% (dry basis), crystals, BAKER ANALYZED® ACS, J.T.Baker®

Supplier: Avantor

This reagent is satisfactory for use as a pH standard. For use as an acidimetric standard, this material should be lightly crushed and dried for 2 hours at 120 °C to remove any absorbed moisture.

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Ammonium peroxodisulphate (APS) ≥98.0%, crystals, BAKER ANALYZED® ACS, J.T.Baker®

Supplier: Avantor

Ammonium peroxodisulphate (APS) ≥98.0%, crystals, BAKER ANALYZED® ACS, J.T.Baker®

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Diammonium hydrogen citrate, BAKER ANALYZED® ACS, J.T.Baker®

Supplier: Avantor

Diammonium hydrogen citrate, BAKER ANALYZED® ACS, J.T.Baker®

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Sodium sulphate, anhydrous ≥99.0%, powder, BAKER ANALYZED® ACS, J.T.Baker®

Supplier: Avantor

Sodium sulphate, anhydrous ≥99.0%, powder, BAKER ANALYZED® ACS, J.T.Baker®

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Magnesium acetate tetrahydrate, EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

Supplier: Merck

Magnesium acetate tetrahydrate, EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

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Ammonium peroxodisulphate (APS), EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

Supplier: Merck

Ammonium peroxodisulphate (APS), EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

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Eriochrome Black T Reag. Ph. Eur., ACS indicator for complexometry, Supelco®

Supplier: Merck

C.I. 14645

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Sodium molybdate(VI) dihydrate ≥99.5% ACS

Supplier: VWR Chemicals

Sodium molybdate(VI) dihydrate ≥99.5% ACS

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Lead(II) acetate trihydrate, EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

Supplier: Merck

Lead(II) acetate trihydrate, EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

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Diammonium hydrogen citrate 99.0-103.0%, AnalaR NORMAPUR® Ph. Eur., ACS analytical reagent

Supplier: VWR Chemicals

Diammonium hydrogen citrate 99.0-103.0%, AnalaR NORMAPUR® Ph. Eur., ACS analytical reagent

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Ammonium peroxodisulphate (APS) ≥98% ACS

Supplier: VWR Chemicals

Ammonium peroxodisulphate (APS) ≥98% ACS

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Xylenol orange tetrasodium salt in ACS Reagent grade water, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Xylenol orange tetrasodium salt is a fluorochrome acid dye with complexing and chelating properties that make it useful as an indicator in the spectrophotometric detection and assay of metal ions such as calcium, cadmium, bismuth, zinc, lead, and mercury. Its tetrasodium salt especially is used as an indicator in metal titrations. It changes color from yellow to red between pH 6.4 to 10.4. It has six potentially anionic substituents, one being sulfonate, and is anionic under staining conditions and during most laboratory applications.