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Potassium
metabisulfite, Certified® Reagent
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Certified Reagent for Research & Development
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Not intended for animal or human diagnostic or therapeutic
use
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Don’t see what you’re looking for, tell us the name & size. Give us
the opportunity to make it happen!
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Certificate of Analysis and Material Safety Data
Sheets Available Upon Request
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Assay
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Current
stock: 2407953CR-0223-CL
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Appearance
white powder; Assay (iodometric) 99.1%; Arsenic (As) <0.0001%; Chloride
(Cl) <0.001%; Heavy metals (as Pb) <0.001%; Identification passes; Insoluble
matter 0.000%; Iron (Fe) <0.0005%; Solubility (water) 200mg/ml; Sulfite
(SO2) 57.2%;
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Beilstein Number
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-
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Boiling Point
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°C
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CAS
Number
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16731-55-8
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Density
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2.34
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EINES Number
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240-795-3
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Flash
Point
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°C
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Harmonized
Code
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2832.20.0000
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IUPAC Name
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Dipotassium
disulfite
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Linear
Formula
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K2S2O5
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MDL Number
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MFCD00167605
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Melting Point
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190°C
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Molecular Formula
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K2S2O5
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Molecular
Weight
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222.32
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Refractive Index
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-
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Solubility
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In
water
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Synonym(s)
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16731-55-8;
240-795-3; Dipotassium disulfite; Dipotassium metabisulfite; Disulfurous acid
potassium salt; K2O5S2; K2S2O5; MFCD00167605; Potassium disulfite; Potassium
metabisulfite; Potassium pentaoxodisulfate; Potassium pyrosulfite; Pyrosulfurous
acid dipotassium salt;
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GHS (Accordance with 29
CFR 1910, OSHA HCS)
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Pictogram
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Corrosive,
Irritant
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Signal
Word
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Danger
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Statement(s)
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H318 Causes serious eye damage; H335 May cause
respiratory irritation;
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Other
hazards
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Contact with acids liberates toxic gas;
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Recommendations
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Do not handle until all safety precautions have been
read (SDS) and understood;
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Storage
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General
P’s shelf
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NFPA
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2-0-0
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Package
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Compatible
HDPE or amber glass bottle
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TRANSPORTION INFORMATION
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US
DOT
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Not
dangerous goods
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