CymitQuimica logo

CAS 7789-12-0

:

Sodium dichromate dihydrate

Description:
Sodium dichromate dihydrate, with the chemical formula Na2Cr2O7·2H2O and CAS number 7789-12-0, is an inorganic compound characterized by its bright orange-red crystalline appearance. It is a highly soluble salt in water, forming a strongly alkaline solution. This compound is primarily used in various industrial applications, including as a corrosion inhibitor, in leather tanning, and as an oxidizing agent in chemical reactions. Sodium dichromate dihydrate is known for its toxicity and potential carcinogenic properties due to the presence of hexavalent chromium, necessitating careful handling and adherence to safety regulations. In terms of its chemical behavior, it can undergo reduction reactions, leading to the formation of less toxic chromium species. The dihydrate form indicates that it contains two molecules of water for every formula unit, which can influence its stability and solubility. Overall, while sodium dichromate dihydrate has valuable applications, its hazardous nature requires stringent safety measures during use and disposal.
Formula:Cr2H2O7·2H2O·2Na
InChI:InChI=1S/2Cr.2Na.4H2O.5O/h;;;;4*1H2;;;;;/q2*+1;;;;;;;;;;;/p-2
InChI key:InChIKey=HKGVSRFZJLAGFL-UHFFFAOYSA-L
SMILES:O([Cr](O)(=O)=O)[Cr](O)(=O)=O.[Na].O
Synonyms:
  • Chromic acid (H<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>), disodium salt, dihydrate
  • Chromic acid (H<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>), sodium salt, hydrate (1:2:2)
  • Dichromic acid (H<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>), disodium salt, dihydrate
  • Dichromic acid disodium salt, dihydrate
  • Disodium dichromate dihydrate
  • Sodium Dichromate Dihydrate
  • Sodium chromate (Na<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>) dihydrate
  • Sodium dichromate (Na<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>) dihydrate
  • Sodium dichromate dihydrate (Na<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>.2H<sub>2</sub>O)
  • Chromic acid (H2Cr2O7), disodium salt, dihydrate
  • See more synonyms
Sort by

Purity (%)
0
100
|
0
|
50
|
90
|
95
|
100
Found 8 products.
  • Sodium dichromate dihydrate, ACS, 99.5-100.5%

    Controlled Product
    CAS:
    It is used as a strong oxidizing agent in organic synthesis. 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 ha
    Formula:Cr2H4Na2O9
    Purity:99.5-100.5%
    Molecular weight:298.00

    Ref: 02-036692

    100g
    50.00€
    500g
    112.00€
    2kg
    307.00€
  • Sodium dichromate dihydrate, 98%

    Controlled Product
    CAS:
    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
    Formula:Cr2H4Na2O9
    Purity:98%
    Color and Shape:White to yellow to orange to red, Crystals or powder or crystalline powder
    Molecular weight:298.00

    Ref: 02-L14890

    500g
    To inquire
    100g
    31.00€
  • Sodium dichromate dihydrate, Reagent Grade

    Controlled Product
    CAS:
    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
    Formula:Cr2H4Na2O9
    Molecular weight:298.00

    Ref: 02-012611

    2kg
    To inquire
    100g
    36.00€
    500g
    101.00€
  • Sodium Dichromate Dihydrate

    Controlled Product
    CAS:
    Formula:Cr2Na2O7·2H2O
    Purity:>95.0%(T)
    Color and Shape:Orange to Brown powder to crystal
    Molecular weight:297.99

    Ref: 3B-O0671

    100g
    31.00€
    500g
    56.00€
  • Sodium Dichromate Dihydrate

    Controlled Product
    CAS:
    Formula:Cr2Na2O7·2(H2O)
    Color and Shape:Neat
    Molecular weight:261.97

    Ref: TR-S615250

    5g
    89.00€
    25g
    98.00€
    50g
    120.00€
  • Sodium Dichromate Dihydrate pure, 98%

    Controlled Product
    CAS:
    Formula:Na2Cr2O7·2H2O
    Purity:min. 98%
    Color and Shape:Orange, Crystalline powder, Clear, Orange
    Molecular weight:298.00

    Ref: SR-94963

    500g
    Discontinued
    5kg
    Discontinued
    Discontinued product
  • Sodium Dichromate Dihydrate ACS, 99.5%

    Controlled Product
    CAS:
    Formula:Na2Cr2O7·2H2O
    Purity:min. 99.5%
    Color and Shape:Orange, Crystalline powder / Solid, Clear, Orange
    Molecular weight:298.00

    Ref: SR-54750

    500g
    Discontinued
    5kg
    Discontinued
    Discontinued product
  • Sodium Dichromate Dihydrate ExiPlus, Multi-Compendial, 99.5%

    Controlled Product
    CAS:
    Formula:Na2Cr2O7·2H2O
    Purity:min. 99.5%
    Color and Shape:Orange, Crystalline powder / Solid, Clear, Orange
    Molecular weight:298.00

    Ref: SR-11996

    500g
    Discontinued
    5kg
    Discontinued
    Discontinued product