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

CAS: 26970-82-1
Molecular Formula: Na2O3Se · 5H2O
Molecular Weight: 263.01
Availablility: In Stock
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Sodium selenite pentahydrate Chemical Structure

This product is subject to a hazardous surcharge. The exact amount will be confirmed by our sales team.

22117374-100g 100g £60.70
22117374-500g 500g £199.60
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22117374-100g 100g €85.00
22117374-500g 500g €279.50
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22117374-100g 100g $91.10
22117374-500g 500g $299.40
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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 2842901090

Product Specification
pH 9.8 - 10.8
Loss on Drying ≤1.0%
Solubility Freely soluble in water, practically insoluble in Ethanol
Assay ≥99%
Carbonate ≤0.01%
Nitrate ≤0.01%
Appearance White crystalline powder
Iron (Fe) ≤50ppm
Conclusion: BP 2012
Lead (Pb) ≤20ppm
Arsenic (As) ≤10ppm
Insoluble Residue ≤0.15%
Selenate and sulphate ≤0.03%
Chloride(Cl) ≤0.01%

Safety Information
Pictograms
Exclamation Mark
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

  • P273: Avoid release to the environment

  • P280: Wear: protective gloves/ clothing & eye 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

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