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Thermo Scientific Chemicals
Sodium dichromate dihydrate, 98%, Thermo Scientific Chemicals
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化學識別
CAS7789-12-0
IUPAC Namedisodium [(oxidodioxochromio)oxy]chromiumoylolate dihydrate
Molecular FormulaCr2H4Na2O9
InChI KeyJYDRNIYTFCBIFC-UHFFFAOYSA-N
SMILESO.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
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規格
規格表
規格表Appearance (Color)White to yellow to orange to red
FormCrystals or powder or crystalline powder
Assay (Iodometric Titration)≥97.5 to ≤102.5% (non-U.S. specification)
Assay from Suppliers CofA≥97.5% (U.S. specification)
CommentSpecification differs for U.S. and non-U.S. material where indicated
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Sodium dichromate is used as a strong oxidizing agent in organic synthesis. It is used in metal finishing as an aid of corrosion resistance, manufacture of inorganic chromate pigments and in the preparation of colored glass and ceramic glazes. It is used as a mordant for acidic dyes to improve their color-fast properties and as a corrosion inhibitor in undercoats and primers.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
Sodium dichromate is used as a strong oxidizing agent in organic synthesis. It is used in metal finishing as an aid of corrosion resistance, manufacture of inorganic chromate pigments and in the preparation of colored glass and ceramic glazes. It is used as a mordant for acidic dyes to improve their color-fast properties and as a corrosion inhibitor in undercoats and primers.
Solubility
Soluble in water. Insoluble in alcohol.
Notes
Keep away from sources of ignition, combustible materials. Do not ingest. Do not breathe dust.
Sodium dichromate is used as a strong oxidizing agent in organic synthesis. It is used in metal finishing as an aid of corrosion resistance, manufacture of inorganic chromate pigments and in the preparation of colored glass and ceramic glazes. It is used as a mordant for acidic dyes to improve their color-fast properties and as a corrosion inhibitor in undercoats and primers.
Solubility
Soluble in water. Insoluble in alcohol.
Notes
Keep away from sources of ignition, combustible materials. Do not ingest. Do not breathe dust.
RUO – Research Use Only
General References:
- Fu, M.; Perlman, M.; Lu, Q.; Varga, C. Pharmaceutical solid-state kinetic stability investigation by using moisture-modified Arrhenius equation and JMP statistical software. Electrochem. Commun. 2015, 107, 370-377.
- Padilla, R.; Opazo, C.; Ruiz, M. C. Kinetics of Copper Removal from Sulfidized Molybdenite Concentrates by Pressure Leaching. Metall. Mater. Trans. B 2015, 46 (1), 30-37.