12619
Potassium disulfite
puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
Synonym(s):
Potassium metabisulfite, Potassium pyrosulfite
About This Item
Recommended Products
grade
puriss.
Quality Level
assay
95.0-101.0% (iodometric)
form
powder
quality
meets analytical specification of Ph.Eur., BP, NF, FCC, E224
impurities
organic volatile impurities, complies (GC)
residual solvents, in accordance
≤0.001% heavy metals (as Pb)
≤0.08% thiosulfate (S2O3)
51.8-57.6% sulfur dioxide
pH
3.5-4.5 (20 °C, 5%)
anion traces
chloride (Cl-): ≤100 mg/kg
cation traces
As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Se: ≤5 mg/kg
Zn: ≤20 mg/kg
suitability
in accordance for appearance of solution
SMILES string
[K+].[K+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key
RWPGFSMJFRPDDP-UHFFFAOYSA-L
Looking for similar products? Visit Product Comparison Guide
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
supp_hazards
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service