Sodium selenite pentahydrate
(22117374 | 26970-82-1)

CAS: 26970-82-1
Molecular Formula: Na2O3Se · 5H2O
Molecular Weight: 263.01
Availablility: In Stock
Downloads: Product Specification | Safety Data Sheet [EN]
Sodium selenite pentahydrate Chemical Structure

22117374-100g 100g £38.90
22117374-500g 500g £127.90
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22117374-100g 100g €58.35
22117374-500g 500g €191.85
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22117374-100g 100g $70.02
22117374-500g 500g $230.22
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Safety Data Sheet
Certificate of Analysis

Product Detail
Product Code 22117374
Product Name Sodium selenite pentahydrate
Categories Flavours and Fragrance Materials Inorganic Chemicals
CAS 26970-82-1
Molecular Formula Na2O3Se · 5H2O
Molecular Weight 263.01
Storage Details Ambient
Harmonised Tariff Code 28429010

Product Specification
AS <10ppm
pH 9.8 - 10.8
Fe <50ppm
Pb <20ppm
Loss on Drying <1.0%
Solubility Freely soluble in water, practically insoluble in Ethanol
Assay >99%
Carbonate <0.01%
Se >45%
Nitrate <0.01%
Chloride <0.01%
Appearance White crystalline powder
Conclusion: BP 2012
Insoluble Residue <0.15%
Selenate and sulphate <0.03%

Safety Information
Skull and Cross Bones
Danger to Environment
Signal word danger
Hazard statements
  • EUH031: Contact with acids liberates toxic gas

  • H300: Fatal if swallowed

  • H317: May cause an allergic skin reaction

  • H331: Toxic if inhaled

  • H411: Toxic to aquatic life with long lasting effects
Precautionary statements
  • P260: Do not breathe dust/fume/gas/mist/vapours/spray

  • P273: Avoid release to the environment

  • P280: Wear protective gloves/protective clothing/eye protection/face protection

  • P284: Wear respiratory protection

  • P301+310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician

  • P308+313: IF exposed or concerned: Get medical advice/attention