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105056 Potassium disulfite

Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
16731-55-8240-795-3K₂O₅S₂K₂S₂O₅222.33 g/molE 224

Products

Catalogue NumberPackaging Qty/Pack
1050565000 Plastic bottle 5 kg
Description
Catalogue Number105056
SynonymsPotassium metabisulfite, Potassium pyrosulfite
References
Product Information
CAS number16731-55-8
EC number240-795-3
GradeE 224
Hill FormulaK₂O₅S₂
Chemical formulaK₂S₂O₅
Molar Mass222.33 g/mol
HS Code2832 20 00
Quality LevelMQ400
Applications
Biological Information
Physicochemical Information
Melting Point150 °C (decomposition)
pH value3.0 - 4.5 (50 g/l, H₂O, 20 °C)
Bulk density1000 - 1300 kg/m3
Solubility450 g/l
Dimensions
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 2300 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H318: Causes serious eye damage.
EUH031: Contact with acids liberates toxic gas.
Precautionary Statement(s)P280: Wear eye protection/ face protection.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Signal WordDanger
RTECSTT4920000
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Disposal6
Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.
Safety Information
Categories of dangerirritant
Product Usage Statements
Storage and Shipping Information
StorageStore at +15°C to +25°C.
Packaging Information
Transport Information
Declaration (railroad and road) ADR, RIDKein Gefahrgut
Declaration (transport by air) IATA-DGRUN 3335 , 9, III
Declaration (transport by sea) IMDG-CodeNo Dangerous Good
Supplemental Information
Specifications
Assay (iodometric)95.0 - 101.0 %
Assay (iodometric, SO₂)54.8 - 57.6 %
Identitypasses test
Appearance of solutionpasses test
pH-value (5 %; water)3.0 - 4.5
Chloride (Cl)≤ 0.05 %
Heavy metals (as Pb)≤ 0.001 %
Thiosulfate (S₂O₃)passes test
As (Arsenic)≤ 0.0002 %
Cu (Copper)≤ 0.0025 %
Fe (Iron)≤ 0.0005 %
Hg (Mercury)≤ 0.0001 %
Pb (Lead)≤ 0.0002 %
Se (Selenium)≤ 0.00025 %
Zn (Zinc)≤ 0.0025 %
Meets analytical specifications of Ph Eur, NF, E224
conforms to Ph Eur, NF, E224
conforms to Ph Eur, NF, E224
Global Trade Item Number
Catalogue Number GTIN
1050565000 04022536060033

Documentation

Potassium disulfite SDS

Title

Safety Data Sheet (SDS) 

Potassium disulfite Certificates of Analysis

Product Number PackagingSpecificationLot Number
1050565000 Plastic bottlePDF Specification Document

Certificates

Title

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