Sodium dichromate dihydrate
- CAS number
- 7789-12-0
- Molecular weight
- 298.00
- Molecular formula / chemical symbol
- Na2Cr2O7.2H2O
Description
Orange red monoclinic pyramid shape or fine needle crystal. Soluble in water, its aqueous solution is acid, insoluble in alcohol. Orange crystal, easy deliquescence.USES
Used for the printing and dyeing, the leather, chemical, pharmaceutical, electroplating, etc., is also used in galvanized after passivation and metal surface treatment, synthetic dyes, camphor and spices and so on, also used in the manufacture of chrome yellow pigment, chromic anhydride and other chromium salt. Also used in metal impregnated and etching, electroplating, wool fabric dyeing of mordant, tanning, etc.
Keywords:Surface treatment chemicals
Report
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Product name |
Sodium dichromate dihydrate |
CAS:7789-12-0 |
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Appeara |
Orange red monoclinic pyramid shape or fine needle crystal |
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chemical formula |
Na2Cr2O7·2H2O |
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test item |
analytically pure(AR) |
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content(Na2Cr2O7.2H2O)Assay,% |
≥99.5 |
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ter insoluble,% |
≤0.003 |
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(Cl),% |
≤0.005 |
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(SO4),% |
≤0.02 |
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(Al)A,% |
≤0.002 |
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(Ca)C,% |
≤0.005 |
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(Fe),% |
≤0.0005 |
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