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CAS 7789-12-0

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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
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