Potassium metabisulfite
(55202280 | 16731-55-8)

CAS: 16731-55-8
Molecular Formula: K2S2O5
Molecular Weight: 222.3236
Availablility: In Stock
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Potassium metabisulfite Chemical Structure

55202280-100g 100g £26.30
55202280-500g 500g £45.00
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55202280-100g 100g €36.90
55202280-500g 500g €63.00
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55202280-100g 100g $39.50
55202280-500g 500g $67.50
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Safety Data Sheet
Certificate of Analysis

Product Detail
Product Code 55202280
Product Name Potassium metabisulfite
Categories Building Blocks Inorganic Chemicals Salts
CAS 16731-55-8
Molecular Formula K2S2O5
Molecular Weight 222.3236
Storage Details Ambient
Harmonised Tariff Code 28322000

Product Specification
pH 3.8 - 4.8
Na ≤2%
Molecular Weight 222.32
Assay ≥97.2%
SO2 ≥56%
Cl ≤0.5%
Appearance White powder
Thiosulfate ≤0.1%

Safety Information
Pictograms
Exclamation Mark
Corrosion
Signal word danger
Hazard statements
  • EUH031: Contact with acids liberates toxic gas

  • H315: Causes skin irritation

  • H318: Causes serious eye damage

  • H335: May cause respiratory irritation
Precautionary statements
  • P280: Wear: protective gloves/ clothing & eye protection

  • P301+312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell

  • P305+351+338: IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

  • P333+313: IF skin irritation or a rash occurs: Get medical advice/attention

  • P337+313: If eye irritation persists get medical advice/attention

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