Sodium chromate

Base Information

• Chemical Name: Sodium chromate
• CAS No.: 10034-82-9
• Molecular Formula: Na2CrO4^.4(H2O)
• Molecular Weight: 234.03
• European Community (EC) Number: 231-889-5
• ICSC Number: 1370
• UN Number: 3085,3288
• UNII: 6A49BO6K4M
• DSSTox Substance ID: DTXSID7032056
• Wikipedia: Sodium_chromate
• Wikidata: Q407958
• NCI Thesaurus Code: C45887
• Mol file: 10034-82-9.mol

Synonyms:Chromitope Sodium;chromium sodium oxide (CrNa2O4);sodium chromate;sodium chromate(VI);sodium chromate(VI), 51Cr-labeled cpd;sodium chromate(VI), decahydrate;sodium chromate(VI), tetrahydrate

Chemical Property of Sodium chromate

Chemical Property:

• Appearance/Colour: yellow deliquescent crystals
• Melting Point: 792℃
• PSA: 117.18000
• Density: 2.73
• LogP: -0.73240
• Sensitive.: Hygroscopic
• Water Solubility.: Soluble in water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 161.899702
• Heavy Atom Count: 7
• Complexity: 62.2
• Transport DOT Label: Oxidizer Corrosive

Purity/Quality:

99% ^*data from raw suppliers

Sodium chromate tetrahydrate, 99+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): N, T+
• Hazard Codes: T+,N
• Statements: 45-46-60-61-21-25-26-34-42/43-48/23-50/53
• Safety Statements: 53-45-60-61

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Metals -> Chromium Compounds, Inorganic
• Canonical SMILES: [O-][Cr](=O)(=O)[O-].[Na+].[Na+]
• Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed.
• Effects of Short Term Exposure: The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. The substance may cause effects on the kidneys and liver. This may result in tissue lesions.
• Effects of Long Term Exposure: Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. Repeated or prolonged inhalation may cause nasal ulceration. This may result in perforation of the nasal septum. The substance may have effects on the kidneys. This may result in kidney impairment. This substance is carcinogenic to humans. Animal tests show that this substance possibly causes toxicity to human reproduction or development.
• Uses: Corrosion inhibitor, pigment manufactureSodium chromate tetrahydrate is used as a corrosion inhibitor, wood preservative and an auxiliary in textile industry. It serves as an oxidant, which is used to prepare carboxylic acids and ketones from primary and secondary alcohols respectively. Further, it is used as a starting material to prepare other chromium compounds and as a catalyst in organic synthesis especially pharmaceuticals and agro chemicals. Sodium chromate tetrahydrate can be used as an oxidant in organic synthesis and also as a carrier electrolyte in the capillary electrophoresis.