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

Leverancier: SIGMA ALDRICH MICROSCOPY

Omschrijving: 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.

Methyl orange in ACS Reagent grade water 85% (dye content), Sigma-Aldrich®

Leverancier: SIGMA ALDRICH MICROSCOPY

Omschrijving: Methyl orange (C.I. 13025) is the sodium salt of p-dimethylaminoazobenzenesulfonic acid. It is an orange-colored synthetic dye, which changes color depending on the pH of the solution. It develops a red color in acidic solution and yellow color in basic solution.

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Methyl orange ACS, Reag. Ph. Eur.

Leverancier: Merck

Omschrijving: Methyl orange ACS, Reag. Ph. Eur.

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Methyl orange (C.I. 13025), AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator

Leverancier: VWR Chemicals

Omschrijving: Methyl orange (C.I. 13025), AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator

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Methyl orange ACS

Leverancier: VWR Chemicals

Omschrijving: Methyl orange ACS

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Methyl orange 0,04% in aqueous solution, TECHNICAL pH-indicator

Leverancier: VWR Chemicals

Omschrijving: Methyl orange 0,04% in aqueous solution, TECHNICAL pH-indicator

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Xylenol orange tetrasodium salt, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator for metal titration

Leverancier: VWR Chemicals

Omschrijving: Xylenol orange tetrasodium salt, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator for metal titration

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Ethyl orange sodium salt

Catalogus nummer: (TCIAE0155-25G)

Leverancier: TCI

Omschrijving: Ethyl orange sodium salt

UOM: 1 * 25 g

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Organic reference standard, Orange II sodium salt, analytical standard, Supelco®

Catalogus nummer: (69143-25MG)

Leverancier: Merck

Omschrijving: Orange II sodium salt can undergo oxidation by hydrogen peroxide, which is catalysed by ferric ion complexed to tetra amido macrocyclic ligands(FeIII–TAML activators) to give out carbon dioxide, carbon monoxide, small aliphatic carboxylic acids and phthalic acid as the major products.

UOM: 1 * 25 mg

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